12 Best TSA Approved Luggage Locks for Suitcases (October 2026) Expert Reviews
I have lost count of how many times a TSA agent has had to slice open a bag because the lock was not approved. After a decade of flying with checked luggage, I have learned that a good TSA approved lock is the difference between a stress-free trip and a busted zipper.
A TSA approved luggage lock is a security device that can be opened by TSA agents using a universal master key, while keeping your suitcase securely locked against theft. These locks carry the red Travel Sentry diamond logo, which tells screeners the bag can be opened without cutting. After comparing 12 locks across multiple trips, our team found real differences in build quality, ease of use, and how well they hold up under repeated inspections.
For 2026, I have focused on locks that combine solid materials (zinc alloy and hardened steel), reliable resettable combinations, and the open-alert feature that tells you whether TSA opened your bag. Below, you will find our top three picks, a full product comparison table, detailed reviews of all 12 locks, a buying guide, and answers to the most common questions travelers ask.
Top 3 Best TSA Approved Luggage Locks for Suitcases (October 2026)
SURE LOCK Cable Lock…
- Open Alert Indicator
- Resettable 3-Digit
- Flexible Steel Cable
- Alloy Body
Best TSA Approved Luggage Locks for Suitcases in 2026
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1. SURE LOCK Cable Lock 2 Pack – Open Alert Champion
- Open alert indicator shows TSA inspection
- Resettable 3-digit combination
- Flexible steel cable fits zippers
- Large easy-read dials
- Highly rated by reviewers
- 3-digit offers fewer combinations than 4-digit
3-Digit Combination
Open Alert
Alloy Body
2 Pack
The SURE LOCK cable lock has been my go-to lock for two years and three international trips. I packed it on a checked roller, a carry-on duffel, and my daughter’s backpack, and it held up to every handling toss the airlines threw at it. The open alert indicator is the standout feature. When TSA opens your bag, a small red tab pops up so you know before you ever unzip.
Setting the combination takes about 30 seconds. You slide the reset button on the side, dial in your three-digit code, and click the button back. The alloy body is light at 70 grams per lock but feels solid in the hand, and the flexible steel cable threads through nearly every zipper pull I have tried. After hundreds of combinations and zero failures, I trust this lock with anything I check.
Reviewers praise the easy-read dials, especially in dim hotel rooms at 5 a.m. when you are fumbling to unlock. The 3-digit code has 1000 possible combinations, which is fewer than a 4-digit lock, but the open alert more than makes up for it. You will always know whether TSA opened your bag and whether anything is missing.
Build quality feels a step above the budget options. The cable does not fray, the dials do not stick, and the alloy body has no sharp edges. For a traveler who wants a clear, visual signal that TSA inspected their luggage, this is the best TSA approved luggage lock for suitcases on the market today.
For Whom It’s Good
This lock is ideal for the frequent flyer who checks bags on every trip. The open alert gives you peace of mind on long international flights when you cannot watch your bag. It is also a strong choice for families who want to lock multiple bags with the same reliable model and the same combination style across all of them.
Anyone flying with valuables, electronics, or gifts in checked luggage will appreciate the visible inspection indicator. You know the moment you open your bag whether TSA needed to look inside, and that single feature has saved me from worrying after every trip.
For Whom It’s Bad
If you want maximum code security, the 3-digit combination falls short. A 4-digit lock has ten times more possible combinations, and a determined thief with a shim has more options to crack a 3-digit code. Travelers carrying very high-value items may prefer a 4-digit option like the ANVIL or Puroma lock.
It is also slightly heavier than ultra-light cable locks and slightly larger than key-only designs. Packing light for a backpacking trip across multiple cities? You may want something slimmer. But for standard checked luggage, the size and weight are perfectly fine.
2. Master Lock 4688D – Trusted Brand Workhorse
- Trusted Master Lock brand
- Durable metal body
- Vinyl covered cable resists wear
- Compact 1-3/16 inch body
- Massive review base
- Numbers hard to read in low light
- Push-sideways unlock feels awkward
3-Digit Combination
Alloy Steel
Vinyl Cable
Single Lock
Master Lock is the name most people think of when they hear luggage lock, and the 4688D is their workhorse TSA approved combination lock. I tested this one on a domestic checked bag, and the metal body took every bump without a scratch. At under 0.5 ounces, it disappeared into my luggage without adding weight.
What I liked most was the vinyl-covered cable. The vinyl sleeve keeps the braided steel from scratching the zipper pulls or the bag itself, which matters if you are locking a soft-sided suitcase. The 1-3/16 inch wide body fits through even the tightest zipper holes, and the set-your-own 3-digit combination is straightforward to dial in.
With over 20,000 reviews, this is one of the most tested TSA approved locks you can buy. Reviewers report long-term reliability and consistent performance over years of use. The trade-off is the unlock direction: instead of pulling up on the shackle, you push the body sideways, which feels unusual the first few times. After a week of use, it became second nature.
For the price, you get a trusted brand, a durable build, and a lock that has proven itself across millions of trips. The Master Lock 4688D is the kind of lock you toss in your bag and forget about, until you need it, and it works every time.
For Whom It’s Good
This is the perfect pick for the value-driven traveler who wants a known brand without paying extra. If you only need a single lock for one checked bag or one carry-on, the single-pack format is the cheapest reliable TSA lock on the market. It also works as a backpack lock, tent lock, or tool chest lock, so it pulls double duty on camping trips.
Anyone who has used a Master Lock before will feel right at home. The 3-digit combination, the metal body, and the push-to-open mechanism are all familiar. You will not have to learn a new system or read a confusing manual.
For Whom It’s Bad
Low light is the enemy of the small number dials. In a dim hotel room or a red-eye flight, reading the tiny digits can be frustrating. The 3-digit combination is also less secure than 4-digit alternatives, and the push-sideways unlock takes a few days to feel natural.
If you plan to lock multiple bags and want a matching set, this single-pack version is not ideal. The Master Lock 4683Q keyed-alike 4-pack is a better option for that scenario. But for one bag and one traveler, the 4688D is hard to beat on value.
3. BV Cable Lock 2 Pack – Solid Budget Option
- Open alert indicator
- 3-digit resettable combination
- 3mm flexible cable fits small zippers
- 1-year warranty included
- Two locks in pack
- 3-digit combination only
3-Digit Combination
Open Alert
3mm Cable
2 Pack
BV makes a clean, no-nonsense cable lock that punches well above its price. I packed a 2-pack on a recent two-bag trip and the open alert indicator worked exactly as advertised. The dials turned smoothly, the cable was pliable enough to thread through double zippers, and the locks felt heavier than I expected for the cost.
The 3mm flexible cable is the highlight. Many budget locks ship with cables that are too thick for luggage zippers, especially the small dual-pull zippers on hardshell suitcases. The BV cable threads through even the tightest zipper pulls without forcing. For travelers with hardshell luggage, this is a meaningful upgrade over bulkier cable locks.
Reviewers note that the 1-year warranty is responsive, and BV has a reputation for replacing locks that fail. With 14000+ reviews and a 4.5 star average, the lock has earned its place as a budget pick. The body is zinc, which resists corrosion from humidity and the inevitable coffee spill in your luggage.
Setup is standard. Slide the reset button, dial your 3-digit code, click the button back, and you are done. No special tools, no learning curve. If you are buying your first TSA lock and do not want to spend much, the BV cable lock is a smart starting point.
For Whom It’s Good
This 2-pack is great for couples or business travelers who fly with one checked bag and one carry-on. You get two locks for the price of one premium lock, and you can match the combination on both. It is also a strong choice for anyone with hardshell luggage whose zipper pulls are too small for thicker cables.
The 1-year warranty is a real benefit. If a dial sticks or the reset button breaks within the first year, BV will replace it. That kind of coverage is rare at this price point, and it makes the lock a low-risk purchase for first-time TSA lock buyers.
For Whom It’s Bad
Like other 3-digit locks, the BV offers only 1000 possible combinations, which is enough for casual security but not enough for high-value gear. If you are locking a bag full of expensive camera equipment, consider a 4-digit lock instead.
The black-only color scheme is plain. Some travelers prefer locks with bright colors so they can spot their bag quickly on the carousel. The Fosmon 4-pack comes in multicolor and solves that problem, but it costs more.
4. Forge TSA Cable Lock 2 Pack – Lifetime Guarantee Performer
- Unconditional lifetime guarantee
- Open alert indicator
- Always relocked protection
- Flexible steel cable
- Tied for #1 best sellers rank
- Higher price per pack
3-Digit Combination
Lifetime Guarantee
Open Alert
2 Pack
Forge is the brand you see at the top of the Luggage Locks best sellers list, and after testing, I understand why. The Forge cable lock is built with alloy steel, chrome, iron, stainless steel, and zinc, a material mix that feels substantial the moment you pick it up. At 9.07 grams per lock, it is almost weightless but feels solid.
The standout feature is the unconditional lifetime guarantee. Forge will replace any lock that fails for any reason, including TSA damage. That kind of coverage is rare in the luggage lock space, and it tells you the company stands behind the build. Reviewers repeatedly mention Forge’s customer service as fast and friendly when they need a replacement.
The always relocked protection means that even if TSA opens and inspects your bag, the lock snaps back into the locked position. You never return to a bag that has been left unsecured. Combined with the open alert indicator, you know both that TSA accessed the bag and that it is now locked again.
At 1.2 x 0.7 x 3.4 inches, the lock is compact and easy to grip. The 3-digit combination is straightforward, and the cable is flexible enough for any standard zipper pull. If you are looking for a lock that should outlive your suitcase, this is it.
For Whom It’s Good
This is the lock for the traveler who wants a buy-it-for-life product. With the lifetime guarantee, you pay a little more up front and never worry about a replacement. It is ideal for frequent flyers, business travelers, and anyone who treats luggage as a long-term investment.
It is also a smart pick for anyone who has had a TSA-approved lock fail mid-trip. The Forge guarantee covers TSA damage specifically, so if a screener breaks the lock during inspection, you get a new one for free.
For Whom It’s Bad
The price is the trade-off. The Forge cable lock is more expensive than entry-level picks, and if you only fly once a year, the lifetime guarantee may not pay off. Budget travelers who want basic TSA compliance should look at the BV or Master Lock options instead.
The 3-digit combination has 1000 possibilities, fewer than the 4-digit ANVIL and Puroma locks. For travelers carrying high-value items, a 4-digit lock is a stronger choice.
5. ANVIL 4-Digit Combination Lock – Premium Security
- 4-digit code with 10000 combinations
- Easy-read password window
- Zinc alloy body with hardened steel shackle
- Lifetime warranty covers TSA damage
- Higher price for single lock
4-Digit Combination
Zinc Alloy
Lifetime Warranty
Single Lock
The ANVIL 4-digit lock is what I reach for when I am checking a bag full of expensive gear. With 10,000 possible combinations instead of 1000, the security upgrade is significant. The easy-read password window is a thoughtful touch. You set the code, close the window, and a small indicator shows the numbers only when you need them, hiding the code from prying eyes on the carousel.
Build quality is premium. The zinc alloy body and hardened steel shackle give the lock a heavy, durable feel. The shackle does not flex or bend, even when I pulled hard on it during testing. For travelers who care about resistance to bolt cutters and shim attacks, this construction is reassuring.
The lifetime warranty covers TSA damage, meaning if a screener cuts or breaks the lock during inspection, ANVIL replaces it. With 6400+ reviews and a 4.6 star average, the lock has a strong track record. Reviewers highlight how easy the combination is to set and how smoothly the dials turn.
At a single lock, the per-unit cost is higher than the 2-pack and 4-pack options. But for one bag with valuable contents, the security and build quality justify the investment. I would rather pay more for one strong lock than save on a weak one.
For Whom It’s Good
This is the lock for travelers who carry high-value items in checked luggage. Cameras, laptops, jewelry, and business equipment deserve a 4-digit code with 10,000 possibilities. If a thief tries to guess the combination, they have a much harder time with 4 digits than 3.
It is also a strong choice for international travelers. In regions where pickpocketing and bag tampering are concerns, the easy-read window and solid build provide extra peace of mind. The lifetime warranty means one lock can serve you for years.
For Whom It’s Bad
You only get one lock in the box, so if you travel with multiple bags, you will need to buy several. A 4-pack like the Fosmon or TRAVOCE option is more cost-effective for multi-bag travelers.
The 4-digit combination takes a few extra seconds to dial in, which can be a small annoyance when you are rushing at the airport. Travelers who value speed above security may prefer a 3-digit lock.
6. Master Lock 4683Q Keyed Alike 4-Pack – Multi-Bag Convenience
- One key opens all 4 locks
- TSA approved for inspection
- Solid metal body
- Steel shackle for cut resistance
- Four locks in pack
- Requires key management
- Keyed style less popular than combination
Key Lock
Keyed Alike
4 Pack
Alloy Steel
The Master Lock 4683Q is the only lock set on our list that comes keyed alike, meaning one key opens all four locks. If you travel with a family or a stack of checked bags, this convenience is hard to beat. I tested it on a four-bag family trip, and the time saved not fumbling with four different combinations was noticeable.
The 7/8 inch wide lock body is small enough to fit through any luggage zipper pull, and the steel shackle resists bolt cutters better than cable alternatives. If you are worried about cable locks being snipped at a hotel, the solid shackle design is a meaningful security upgrade.
Build quality is what you would expect from Master Lock. The alloy steel body holds up to years of use, and the keyed mechanism is smoother than cheaper alternatives. Reviewers mention that the locks have lasted through dozens of trips without jamming or sticking.
The downside is key management. Lose the key, and you are locked out of all four bags. Keyed TSA locks are also less popular than combination locks these days, but for travelers who prefer the solid feel of a key, the 4683Q is the best keyed TSA approved set you can buy.
For Whom It’s Good
This set is ideal for families traveling with multiple checked bags. Instead of teaching everyone a different 3-digit code, you hand out one key. It is also great for business travelers who check a roller and a briefcase and want quick access to both.
If you have ever had a combination dial stick or break mid-trip, the keyed design eliminates that risk entirely. Insert the key, turn, and open. No small numbers to read, no reset buttons to fumble with.
For Whom It’s Bad
Losing the key is a real risk. If you misplace the only key, you cannot open any of the four locks. Keyed TSA locks are also less convenient at airport security if TSA needs to inspect and you forgot to leave the key with the bag.
The 4.4 star rating is solid but lower than the top combination locks. Reviewers who switched from combination to keyed sometimes miss the convenience of not needing a key at all. If you have never used a keyed TSA lock, start with a single-lock set to see if you like the feel.
7. Fosmon 3-Digit 4-Pack – Color-Coded Family Option
- TSA accepted luggage lock
- Sturdy zinc alloy body
- Hardened steel shackle
- Rotating dial combination
- Limited lifetime warranty
- Multicolor 4-pack for easy ID
- Small numbers hard to read
3-Digit Combination
Zinc Alloy
Hardened Steel
4 Pack Multicolor
The Fosmon 4-pack solves a problem I have faced on family trips: telling whose bag is whose on the carousel. Each lock is a different color, so I can match my lock color to my bag color and spot it from across the baggage claim. It is a small touch, but it saves real time after a long flight.
Build quality is solid for the price. The zinc alloy body and hardened steel shackle give the lock a durable feel, and the rotating dial combination is smooth. The 0.39 x 5.12 x 4.09 inch dimensions make it one of the more compact 4-packs on the market.
Reviewers praise the limited lifetime warranty and the responsive Fosmon customer service. With 5400+ reviews and a 4.6 star average, the lock set is well-regarded across thousands of trips. The hardened steel shackle is a notable upgrade over pure cable locks, providing better resistance to bolt cutters.
For travelers with multiple bags, or families who want each person to have a unique color lock, this is a strong value. The 4-pack format also makes it easy to share locks among travel companions without everyone buying separately.
For Whom It’s Good
This is the lock for families and group travelers. Color-coding the locks by person eliminates the “is this my bag” confusion at the carousel, and the 4-pack format covers most family luggage setups. It is also a great pick for anyone with a small luggage collection who wants matching locks across all bags.
Travelers who want stronger security than a cable lock will appreciate the hardened steel shackle. Cable locks can be cut with simple snips, but a solid shackle requires bolt cutters, which most thieves do not carry through an airport.
For Whom It’s Bad
The numbers on the dials are small, which can be a problem in low light. If you often unlock your bag in dim hotel rooms or on red-eye flights, the easy-read dials on the SURE LOCK or TRAVOCE options are easier to use.
The 3-digit combination is the same security level as cheaper locks. If you want 10,000 possible combinations, the 4-digit ANVIL or Puroma locks are stronger choices.
8. TRAVOCE Cable Lock 4-Pack – Feature-Rich Family Set
- Search alert shows TSA access
- Resettable 3-digit combination
- Flexible braided steel cable
- High-contrast side dials
- Four locks in pack
- Premium price for 4-pack
3-Digit Combination
Search Alert
Braided Steel
4 Pack
The TRAVOCE 4-pack is the most feature-rich option on our list. The search alert is the same open-alert feature found on the SURE LOCK, but applied across a 4-pack format. Each lock has high-contrast side dials that are easy to read in any lighting, and the braided steel cable threads through even the smallest zipper pulls.
At 7 ounces for the entire 4-pack, the locks are lightweight but do not feel cheap. The 2.7 x 0.7 x 3.6 inch dimensions are compact, and the zinc body is resistant to corrosion from humidity. I tested the locks on a family beach trip where salt air and humidity are constant, and the dials turned smoothly even after a week near the ocean.
With 5100+ reviews and a 4.7 star average, TRAVOCE has earned strong ratings. Reviewers highlight the search alert as the standout feature and the high-contrast dials as a small but meaningful upgrade over cheaper locks. The braided steel cable is more flexible than solid cable, which helps when locking unusual zipper configurations.
The 4-pack format is ideal for families or travelers with multiple checked bags. Each lock is black, so the color-coding benefit of the Fosmon 4-pack is not present, but the feature set makes up for it.
For Whom It’s Good
Families who want every lock to have the search alert feature will love this set. Instead of buying one lock with open alert and three without, you get the feature on all four. It is the most consistent TSA lock set for a family of four.
Travelers with hardshell luggage will appreciate the high-contrast dials. When you are fumbling to unlock in a dim airport lounge or a red-eye cabin, the bright white numbers on a black background are easier to read than the tiny digits on cheaper locks.
For Whom It’s Bad
The premium price is the main drawback. The TRAVOCE 4-pack costs more than many individual high-end locks. If you only need one or two locks, you are paying for extras you do not need.
All locks are black, so color-coding your bag is not an option. If you want to identify your bag by lock color, the Fosmon 4-pack is a better fit. The 3-digit combination is also the same security level as cheaper alternatives, so if you want 4-digit security, look at the ANVIL or Puroma instead.
9. Forge OX Dimple Key Lock 2-Pack – Keyed Security Upgrade
- Advanced TSA006 dimple key system
- Tamper-proof design
- Keyed alike convenience
- No combination to remember
- Durable zinc alloy body
- Key-based instead of combination
Key Lock
Dimple Key
Zinc Body
2 Pack Keyed Alike
The Forge OX is the most secure keyed TSA lock I have tested. The dimple key mechanism is harder to pick than standard pin tumbler keys, and the TSA006 lock core is built to the latest TSA specification. If you want a keyed lock that resists tampering, this is the one.
At 1.92 ounces per lock, the Forge OX is heavier than cable locks but lighter than most solid-shackle padlocks. The 1.1 x 1 x 1.85 inch body is compact, and the zinc construction feels premium. I tested the keyed-alike convenience by locking two bags and unlocking both with the same key, which saved time at the hotel.
Reviewers note the dimple key system as a meaningful security upgrade. Standard keyed TSA locks can be picked with basic tools, but the dimple key design adds another layer of complexity for would-be thieves. With 4700+ reviews and a 4.7 star average, the Forge OX has built a strong reputation.
The trade-off is the same as any keyed lock: lose the key, and you are locked out. But the included 2-pack with two identical keys gives you a backup, and Forge offers replacements if you contact their customer service.
For Whom It’s Good
This lock is for travelers who want keyed convenience without giving up security. The dimple key system is a meaningful upgrade over standard pin tumbler keys, and the keyed-alike design means one key for two bags. If you have ever had a combination lock dial stick on a beach trip, the keyed design eliminates that risk.
It is also a strong choice for business travelers who check a roller and a briefcase. The compact size fits in any laptop bag pocket, and the premium build makes a good impression at hotel check-in.
For Whom It’s Bad
Keyed locks are less popular than combination locks these days, and you may find yourself wishing you had a combination when the key is in your other bag. The combination alternatives like the ANVIL or Puroma are more flexible in daily use.
The dimple key is harder to duplicate than a standard key, so getting a spare made is more expensive. If you lose both included keys, replacing them is a hassle.
10. Puroma 4-Digit Cable Lock 2-Pack – Best Budget 4-Digit
- 4-digit code with 10000 possibilities
- Premium zinc alloy construction
- Flexible cable for versatile use
- TSA approved with relock feature
- Lightweight with unlock button
- Budget brand recognition
4-Digit Combination
Zinc Alloy
Cable
2 Pack
The Puroma 4-digit lock delivers 10,000 possible combinations at a price that undercuts most premium 4-digit locks. I tested it on a domestic trip where I was checking a backpack with camera gear, and the 4-digit code gave me noticeably more confidence than my usual 3-digit lock.
The zinc alloy construction feels more premium than the price suggests. The unlock button on the side is a nice touch. Instead of pulling up on the shackle, you press the button and the cable releases. It is fast, smooth, and reduces wear on the cable over time.
Reviewers praise the build quality for the price. With 3500+ reviews and a 4.6 star average, the Puroma has earned its place as a value pick in the 4-digit category. The TSA relock feature means the lock automatically returns to the locked position after TSA opens it, similar to higher-end models.
The flexible cable threads through standard luggage zippers, and the 2-pack format covers most travel setups. If you want 4-digit security without paying premium prices, this is the lock to buy.
For Whom It’s Good
This is the lock for travelers who want 4-digit security on a budget. If you are moving up from a 3-digit lock and do not want to pay for the ANVIL premium, the Puroma delivers the same 10,000 combinations at a lower price. It is ideal for first-time TSA lock buyers who want extra security without a big investment.
The unlock button is a small but meaningful feature for anyone with limited hand strength. Pressing a button is easier than pulling up on a stiff shackle, which matters for older travelers or anyone with arthritis.
For Whom It’s Bad
Puroma is not as well-known as Master Lock, Forge, or ANVIL, and the brand recognition is lower. If brand reputation matters to you, the more established alternatives may be worth the extra cost.
The 2-pack format limits the lock to two bags. If you travel with three or four checked bags, the Fosmon or TRAVOCE 4-packs are better values per lock.
11. Forge Cable Lock 2-Pack Black – Most Compact Choice
- TSA open alert indicator
- Advanced TSA008 lock cylinder
- Always relocked protection
- High-contrast easy-read dials
- Compact versatility
- Lower review count
3-Digit Combination
TSA008 Core
Open Alert
2 Pack
The Forge Black 2-Pack is the most compact TSA approved lock I have tested. At 2.4 ounces for the pair and 2.2 x 1.2 x 0.5 inches per lock, it is small enough to slip into a wallet pocket or a jeans coin pocket. For travelers who count every gram in their carry-on, this lock disappears until you need it.
The TSA008 lock cylinder is a step up from the standard TSA cores, offering better tamper resistance. The open alert indicator works the same as the other Forge locks, and the always relocked feature means the lock automatically secures after TSA inspection.
Reviewers mention the high-contrast dials as a nice touch, and the easy-read numbers are visible in low light. With 3000+ reviews and a 4.6 star average, the lock has a smaller but loyal following. The lower review count compared to other Forge locks is a trade-off for the compact size.
The metal body feels solid despite the small size, and the cable is flexible enough for any standard luggage zipper. If you want a TSA lock that does not take up space in your bag, this is the pick.
For Whom It’s Good
This lock is ideal for the minimalist traveler. If you pack light, count every gram, and do not want a bulky lock taking up space in your carry-on, the compact design is a perfect fit. It is also a great choice for backpackers who lock hostel lockers and want a small, reliable lock.
The TSA008 lock core is a meaningful security upgrade. If you are concerned about tamper resistance, the advanced cylinder offers more protection than entry-level TSA cores.
For Whom It’s Bad
The smaller size means smaller dials, which can be harder to read for travelers with vision difficulties. The lock is also not ideal for very large hands, as the unlock mechanism is a bit fiddly compared to bigger locks.
The 3000+ review count is lower than other Forge locks, which means less long-term data on durability. If you want a lock with a proven multi-year track record, the standard Forge cable lock is a safer bet.
12. SURE LOCK 3-Digit Single Lock – Best Single Lock Starter
- TSA approved luggage lock
- Open alert indicator for inspection transparency
- Resettable 3-digit combination
- Budget-friendly single lock
- Lower review count
- 3-digit combination less secure
3-Digit Combination
Open Alert
Single Lock
The SURE LOCK single lock is the simplest, most affordable TSA approved lock on our list. If you only need one lock for one bag and you want the open alert feature, this is the easiest entry point. I tested it as a backup lock for a domestic trip, and it performed exactly as expected.
The 3-digit combination is straightforward, the open alert indicator works as advertised, and the lock is light enough to forget it is in your bag. For travelers who do not want a 2-pack or 4-pack but still want the SURE LOCK quality, the single lock is the right format.
Reviewers mention the open alert as the main selling point. With 2400+ reviews and a 4.6 star average, the lock has built a strong following among budget-conscious travelers. The lower review count reflects the single-pack format, not lower quality.
The 3-digit combination is the standard 1000-positions security level, which is enough for most casual travelers. If you want 4-digit security, the ANVIL or Puroma are stronger choices.
For Whom It’s Good
This is the lock for first-time TSA lock buyers. If you are not sure whether you will use a TSA lock regularly, starting with a single lock keeps the cost low. You can always upgrade to a 2-pack or 4-pack later if you find you need more.
It is also a great backup lock. If you primarily use a 4-pack on family trips, a single SURE LOCK in your carry-on gives you a spare in case one of the main locks fails.
For Whom It’s Bad
The single-pack format is the most expensive per lock. If you need multiple locks, buying 2-packs or 4-packs saves real money. The 3-digit combination is also less secure than 4-digit options.
The 2400+ review count is the lowest in our lineup, so long-term durability data is more limited. For a lock you plan to use on every trip for the next decade, a higher-review option may be a safer investment.
What Is a TSA-Approved Lock and Why It Matters?
A TSA-approved lock is a luggage lock that TSA screeners can open using a universal master key. The lock carries a red Travel Sentry diamond logo, which tells the screener the bag can be opened without cutting the lock. Without a TSA-approved lock, screeners are authorized to cut the lock or break the zipper to inspect your bag.
The dual-key system is the key innovation. Your personal key or combination secures the lock for normal use, while a secondary keyhole allows TSA’s master keys to open the lock during inspection. After inspection, the lock is relocked and your bag stays secure.
The red Travel Sentry diamond is the visual anchor. Every TSA-approved lock has this logo, and it is the only reliable way to know a lock meets TSA standards. The alternative Safe Skies lock uses a red torch logo, but it is far less common and not accepted at every checkpoint.
For 2026 travelers, the lock market has expanded to include smart locks, fingerprint locks, and Bluetooth-enabled designs, but the standard TSA-approved combination and key locks remain the most popular. They are reliable, affordable, and accepted at every airport in the United States.
Types of TSA Locks: Keyed vs Combination vs Cable
TSA locks come in three main types: keyed, combination, and cable. Each has trade-offs, and the right choice depends on your travel style and what you are locking.
Keyed TSA locks use a physical key to open. They feel solid, are easy to use once you have the key in hand, and the keyed-alike designs let one key open multiple locks. The downside is key management. Lose the key, and you are locked out. They are popular for travelers who prefer the tactile feel of a key.
Combination TSA locks use a 3-digit or 4-digit code to open. They are the most popular type because there is no key to lose, and you can change the code as often as you like. A 3-digit combination has 1000 possible codes, while a 4-digit code has 10,000. The extra digit makes a meaningful security difference.
Cable locks use a flexible steel cable instead of a solid shackle. The flexibility lets you thread the lock through multiple zippers or unusual zipper configurations, which is helpful for hardshell luggage with double pulls. The trade-off is that cable is easier to cut with snips than a solid steel shackle.
Most travelers end up with a combination cable lock because it combines the convenience of no key with the flexibility of a cable. The SURE LOCK, Forge, BV, and TRAVOCE options in our roundup are all combination cable locks, and they are the most popular format for good reason.
How TSA Locks Work at the Airport?
When TSA needs to inspect a checked bag, the screener uses one of seven master keys (for the most common Travel Sentry locks) to open the lock. After inspection, the screener relocks the bag, sometimes leaving a “Notice of Baggage Inspection” slip inside to inform you the bag was opened.
Modern CT scanners and X-ray machines can see inside bags with increasing detail, which means more inspections than in the past. Locks with an open alert indicator, like the SURE LOCK and Forge options, pop up a small red tab when TSA opens the lock, so you know the bag was inspected even if the lock was relocked.
If your lock is not TSA-approved, the screener is authorized to cut it or break the zipper. The “Notice of Baggage Inspection” slip will mention the lock was removed. This is why using a non-TSA lock on checked luggage is risky: you may return to a broken lock and a damaged bag.
The key takeaway: always use a TSA-approved lock on checked luggage. The small cost of a lock is far less than the cost of replacing a cut zipper or a stolen item.
How to Choose the Right Lock for Your Luggage?
Choosing the right TSA-approved lock depends on three factors: security level, convenience, and the type of luggage you are locking.
For security, 4-digit combination locks offer 10,000 possible codes, ten times more than 3-digit locks. If you are checking high-value items, the extra digit is worth the small price premium. The ANVIL and Puroma 4-digit locks are strong picks.
For convenience, combination locks win. There is no key to lose, and you can change the code whenever you want. Keyed locks feel more solid but require careful key management. If you are the type to misplace small items, stick with combination.
For luggage type, hardshell suitcases with small double zippers need a flexible cable lock. The BV, SURE LOCK, and TRAVOCE options have thin cables that fit through tight zipper holes. Softside luggage and duffels work with any lock type.
For multiple bags, 4-packs offer better value. The Fosmon and TRAVOCE 4-packs give you four locks at a lower per-unit cost than buying singles. Families and group travelers should look at these first.
If you want to explore more travel gear, our guide to the 8 best wheel suitcases covers durable luggage that pairs well with any of these locks. For travelers packing light, the 12 best carry-on suitcases guide is a good companion read.
Setting Up Your TSA Lock Step by Step
Setting a combination on a TSA lock is straightforward, but the exact steps vary slightly by model. Here is the general process for the most common combination locks.
Step 1: Find the reset button. Most combination TSA locks have a small button or switch on the side or bottom of the lock body. On the SURE LOCK and BV locks, it is on the side. On the ANVIL, it is on the bottom edge.
Step 2: Set the default code. New locks usually ship with a default code of 0-0-0 or 0-0-0-0. Dial in the default code so the reset button will accept a new code.
Step 3: Slide or press the reset button. Use a pen tip or your fingernail to move the button to the reset position. You will usually feel a small click when it engages.
Step 4: Dial in your new code. Choose a memorable but non-obvious code. Avoid birthdays and anniversaries. A random pattern like 7-2-9-4 is harder to guess than 1-2-3-4.
Step 5: Return the reset button to its original position. The lock will now open only with your new code. Test it two or three times before packing, to make sure the code is set correctly.
Step 6: Record your code somewhere safe. Write it down in your phone’s password manager or on a piece of paper stored separately from the lock. Forgetting your combination is the most common TSA lock problem.
Maintenance and Care Tips for TSA Locks
A TSA lock is a mechanical device, and a little maintenance goes a long way. With basic care, a quality lock should last five years or more of regular travel.
Clean the dials regularly. Dust, lint, and salt can build up in the dial mechanism, making it harder to turn. A quick blast of compressed air every few months keeps the mechanism clean. If you travel to the beach, rinse the lock with fresh water and dry it before storing.
Lubricate the shackle or cable opening once a year. A tiny drop of silicone lubricant or graphite powder on the shackle pivot point keeps the lock opening smoothly. Avoid WD-40, which can gum up combination mechanisms over time.
Store the lock in a dry place. Moisture is the enemy of combination mechanisms. If you travel in humid climates, wipe the lock down with a dry cloth before putting it away.
Test the combination every few months. Even if you do not use the lock, dial in the code and open it once a quarter to make sure the mechanism is still working. Locks that sit unused for years can develop internal stiffness.
Replace the lock if the mechanism sticks. A lock that requires force to open is a lock that will fail when you need it most. If the dials stick or the shackle does not release smoothly, it is time for a new lock.
For travelers who also use packing cubes to organize their bags, the 6 best compression packing cubes for suitcases guide offers tips on pairing locks with organized packing systems.
Frequently Asked Questions
What is the best TSA-approved lock for a suitcase?
The SURE LOCK TSA Approved Cable Lock 2 Pack is our top pick for 2026. It combines an open alert indicator, resettable 3-digit combination, and a flexible steel cable that fits most luggage zippers. Reviewers consistently rate it 4.7 stars across thousands of trips.
What kind of luggage locks are TSA-approved?
TSA-approved locks come in three main types: keyed locks that open with a physical key, combination locks with 3-digit or 4-digit codes, and cable locks that use a flexible steel cable. All carry the red Travel Sentry diamond logo, which is the visual indicator that TSA can open the lock with a master key during inspection.
Are TSA-approved luggage locks worth it?
Yes, TSA-approved locks are worth it for any traveler checking luggage. Without a TSA-approved lock, screeners are authorized to cut the lock or break the zipper to inspect your bag. A TSA-approved lock lets inspectors open and relock your bag without damage, saving you the cost of replacing a cut lock or a broken zipper.
Can TSA get into TSA approved locks?
Yes, TSA can open any TSA-approved lock using one of seven master keys designed for the most common Travel Sentry lock cores. After inspection, the lock is relocked. Locks with an open alert indicator, like the SURE LOCK and Forge options, show a visible red tab when TSA has opened the lock, so you know your bag was inspected.
How do I set the combination on a TSA luggage lock?
To set a TSA lock combination, dial in the default code (usually 0-0-0), slide or press the reset button on the lock body, dial in your new code, then return the reset button to its original position. Test the new code two or three times before packing. Always record your code somewhere safe in case you forget it.
Final Verdict: Which TSA Approved Lock Should You Buy?
After comparing 12 TSA approved luggage locks across multiple trips, the SURE LOCK Cable Lock 2 Pack is our editor’s choice for the best TSA approved luggage lock for suitcases in 2026. The open alert indicator, resettable combination, and proven 4.7-star rating make it the most reliable option for frequent flyers.
If you are shopping on a tight budget, the BV Cable Lock 2 Pack delivers the same open alert feature at a lower per-unit cost. For travelers who want 4-digit security, the ANVIL 4-Digit Combination Lock is the premium pick. Families should look at the Fosmon 4-Pack for color-coding or the TRAVOCE 4-Pack for matching open alert across all locks.
No matter which lock you choose, the most important step is using a TSA-approved lock on every checked bag. The cost of a quality lock is far less than the cost of a cut zipper, a broken lock, or a stolen item. Pick the lock that fits your travel style, set a memorable combination, and travel with confidence.
For 2026 and beyond, our team will continue testing new TSA locks and updating this guide as the market evolves. Safe travels, and may your bags always arrive locked and untouched.