How to choose the right luggage lock
Updated June 2026Independently researchedNo paid placement.
For 2026, the best luggage lock is a TSA-approved combination lock with a durable zinc alloy body and a flexible cable. It lets you avoid lost keys, meets all airline security requirements, and offers enough theft deterrence for most travelers.
What does TSA-approved mean and why does it matter?
A TSA-approved lock is one that Transportation Security Administration officers can open with a universal master key if they need to inspect your bag. Without it, they may cut your lock off entirely. The approval tells you the lock uses a standardized mechanism that responds to the TSA’s special tools. For checked luggage, using a non-TSA lock almost guarantees it will be broken in the event of a search. For carry-on bags, you don’t technically need TSA approval because you keep the bag with you, but it still helps if you ever gate-check the bag. In short: if your bag will ever leave your sight, a TSA-approved lock saves hassle.
Combination vs key locks: which is better for 2026?
Combination locks have become the standard for most travelers because you never have to carry a tiny key. They’re particularly useful on trips with multiple people, as everyone can be given the same code. The trade-off is that you can forget the combination, so choose a lock with a reset feature you actually understand. Key locks are simpler mechanically and don’t risk a forgotten code, but losing the key mid-trip is a real pain. Some premium brands offer a small backup key stash, but that adds complexity. For 2026, most experts and frequent travelers recommend a combination lock with a tactile dial that’s easy to operate in dim airport lighting.
What materials and build quality should you look for?
Body material is the first sign of durability. Zinc alloy and stainless steel bodies resist impact and corrosion far longer than cheap plastic. The shackle, the loop that goes through your zipper, should be hardened steel, not soft metal that bends with pliers. Cable-style locks are popular because they can be threaded through multiple zipper pulls or even around a fixed object. Look for a braided steel cable with a vinyl coating; it’s flexible but tough to cut. Avoid locks with thin, naked cables that can be snipped with small cutters. Also check the dial: recessed dials that sit flush are harder for thieves to read from the side.
How to choose the right lock for your luggage type?
For soft-sided suitcases with standard zippers, a standard open-shackle padlock or a cable lock works fine. Hard-side cases often have zip tracks on a rigid frame; a wider shackle may be needed to fit through the zipper pulls. If you have a suitcase with an integrated TSA lock built into the frame, you may not need a separate lock. But many built-in locks use a simple key that’s easy to lose, so a combination add-on is still worth considering. For backpacks or duffels without a dedicated lock loop, a cable lock gives you more routing options. Always test the fit before you travel.
Are luggage locks really secure against theft?
No luggage lock can stop a determined thief with bolt cutters or a knife. These locks are deterrents, not fortresses. Their main job is to keep opportunistic thieves from unzipping your bag and grabbing something in seconds. A visible lock makes theft slower and riskier. That said, TSA locks are designed with a backdoor that some security professionals consider a vulnerability, since the master keys can theoretically be copied or compromised. For valuables like jewelry or passports, use a non-TSA lock on a personal item you keep with you, or rely on a hotel safe. For clothes and toiletries, a TSA lock offers peace of mind without overthinking it.
How to reset and maintain your combination lock?
Each lock manufacturer uses a slightly different reset process. Most require you to set the dial to the current combination, then press a small reset button or switch on the back or bottom. After pressing, you rotate the dials to your new code and release the button. Always do this at home, never while in transit, and test the new combination with the lock open before you close it. To maintain a smooth mechanism, keep the dials clean and dry. A spritz of silicone lubricant (not oil) once a year prevents sticky dials. If you accidentally change the combo mid-trip, stop and think carefully about where your fingers were when you pressed the reset. Most frustrated travelers recover their code within ten minutes of calm trial.
Frequently asked questions
Are all TSA-approved locks the same?
No, they vary in build quality, dial design, and cable thickness. The TSA approval only guarantees a universal override mechanism, not impact resistance or ease of use. Some cheap locks have plastic bodies that crack easily.
Can TSA open my lock without damage?
Yes, when using their master key. However, if the key doesn’t work or the lock is jammed, they may cut it off. That’s rare but possible, so it’s smart to pack a spare lock in your carry-on just in case.
Do I need a lock on checked luggage?
It’s recommended but not required. Unlocked zippers are easy targets for thieves in baggage handling. A TSA lock adds a layer of deterrence without adding much hassle for screeners.
How do I reset a combination lock if I forget the code?
Most TSA combination locks have no universal bypass for the user; you’ll need to try common combinations or use the manufacturer’s reset tool if you still have it. Some locks have a learning feature, but if you’re stuck, your only options are to cut the shackle or visit a luggage repair shop.
Are luggage locks worth it if they can be cut?
Yes. Theft from luggage is often opportunistic, not planned. A visible lock makes a thief move to an easier target. It’s not perfect security, but it reduces the chance of casual theft.
Can I use a non-TSA lock on checked luggage?
You can, but the TSA will cut it off if they need to search your bag. You’ll lose the lock and your bag may arrive unsecured. For checked luggage, stick with TSA-approved locks.