Short answer: use a TSA-recognized lock on checked bags so security can open it with a master key instead of cutting it. The Forge TSA Cable Lock 4-pack is our top pick: a flexible steel cable that fits most zippers, a resettable combination and an alert that shows if TSA opened it. On a budget, the SURE LOCK 2-pack does the same job.
Affiliate note: As an Amazon Associate, The Finer Route earns from qualifying purchases. Buying through our links costs you nothing extra. Picks are based on published specs, TSA guidance and long-term buyer feedback, not hands-on lock testing.
Forge TSA Cable Lock, 4-pack
Flexible cable, open alert, 3-digit code. Enough for the family.
Check price on AmazonSURE LOCK TSA Lock, 2-pack
A long-running best seller with a red inspection indicator.
Check price on AmazonShopping on Black Friday? Add it to your Amazon cart now so it is ready when deals start.
Let's be honest about what a luggage lock does. It will not stop a determined thief, and a zipper can be opened with a pen. What it does is keep a bag from springing open, stop casual snooping by hotel staff or other passengers, and make your bag a less tempting target than the unlocked one next to it. On flights from or within the US, it needs to be TSA-recognized.
What "TSA approved" means
- TSA-recognized locks were developed with TSA so officers can open them with universal master keys. The packaging says so, usually with a red diamond (Travel Sentry) or red torch (Safe Skies) logo.
- Non-TSA locks may be cut. If TSA needs to inspect a locked checked bag and cannot open it, the lock may be cut, and TSA says it is not liable for damage to locked bags opened for security.
- If TSA opens your bag, it leaves a Notice of Baggage Inspection inside. Many TSA locks also have an indicator that changes color when opened with a master key.
- Abroad, many countries do not use TSA keys, but a TSA lock is still a normal combination lock everywhere.
Luggage locks compared
| Lock | Code | Open alert | Pack |
|---|---|---|---|
| Forge TSA Cable Lock | 3 digits | Yes | 4 (also 2) |
| SURE LOCK TSA Lock | 3 digits | Yes | 2 |
| Puroma TSA Lock | 4 digits | Not listed | 2 |
| BV TSA Lock | 3 digits | Yes | 2 |
How we chose
- TSA recognized, according to the makers.
- Cable over shackle: a thin flexible cable fits more zipper pulls than a rigid shackle.
- Proven sellers, sold and shipped by Amazon as of October 15, 2026.
The best TSA luggage locks in 2026
Best overall: Forge TSA Cable Lock (4-pack)
Forge is one of the best-known lock brands on Amazon. This lock has a flexible steel cable that threads through most zipper pulls, an easy lever to set a 3-digit code, and an open alert that shows when TSA has used a master key. The 4-pack covers two checked bags and two carry-ons.
- TSA-recognized, 3-digit resettable code
- Flexible steel cable, zinc alloy body
- Open alert indicator; large white numbers
Good: fits most bags, easy to read numbers, enough locks for a family.
Watch out: 1,000 combinations is enough to deter, not to stop, a patient thief.
Skip it if you travel with one bag: the SURE LOCK 2-pack below is enough.
Best value: SURE LOCK TSA Lock (2-pack)
A long-running best seller with a braided steel cable, a resettable 3-digit code and a red indicator that pops up if TSA opened the lock.
- TSA-recognized, 3-digit code
- Braided steel cable; red inspection indicator
Good: simple, cheap, works on backpacks too.
Watch out: small dials can be fiddly.
Most combinations: Puroma 4-Digit TSA Lock (2-pack)
A 4-digit code gives 10,000 possible combinations instead of 1,000. Zinc alloy body, flexible cable and bright colors that are easy to spot.
- TSA-recognized, 4-digit resettable code
- Zinc alloy, flexible cable
Good: harder to guess, easy to see on the carousel.
Watch out: one more digit to remember.
Thinnest cable: BV TSA Lock (2-pack)
A Travel Sentry approved lock with a 3 mm cable that fits small zipper holes on backpacks and soft bags, plus an open alert.
- Travel Sentry approved, 3-digit code
- 3 mm flexible cable; open alert
Good: fits small zippers other locks cannot.
Watch out: a thin cable is easy to cut; it is a deterrent.
How to use a luggage lock well
- Set your code before the trip and write it somewhere other than the bag.
- Lock both zipper pulls together and, on soft bags, through a fixed loop if there is one.
- Add a tracker. A lock slows a thief down; a luggage tracker helps you find the bag.
- Keep valuables in your carry-on. Electronics, medicines, jewelry and documents should never be in a checked bag.
- Use zipper clips on day bags in crowded cities. See our small travel gifts.
FAQ
Do I need a TSA-approved lock?
Only if you lock a checked bag on flights screened by TSA. A TSA-recognized lock can be opened with a master key; a regular lock may be cut if TSA needs to inspect the bag.
How do I know if a lock is TSA approved?
The packaging says so, usually with a red diamond (Travel Sentry) or red torch (Safe Skies) logo.
Will TSA cut my lock?
If you use a non-TSA lock and your checked bag needs inspection, TSA may cut it. TSA says it is not liable for damage to locked bags opened for security.
Do luggage locks actually stop theft?
They deter casual theft and keep zippers closed, but they will not stop a determined thief. Keep valuables in your carry-on and add a luggage tracker.
Should I lock my carry-on?
It is optional. A lock on a carry-on or backpack helps in hostels, hotels and crowded trains, and TSA can still open a TSA lock if needed.
Related reading
Sources
- TSA: TSA recognized locks
- Product specifications from each brand's Amazon listing, checked October 15, 2026
Affiliate Disclosure: The Finer Route is a participant in the Amazon Services LLC Associates Program. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. We also earn from some travel partners linked on this page. Product details and availability change, so check the listing before you buy.
