How to Open a TSA Lock Without the Key

You can open a TSA lock without the key using the reset method, a shim, or bolt cutters depending on the lock type and your situation

TSA locks are designed to be opened by Transportation Security Administration officers at checkpoints without damaging your luggage. That same design means you can open one yourself if you've lost the key or forgotten the combination. The method depends on whether you have a combination lock or a keyed lock, and how much time you have.

The fastest route for most people is the reset method if you own a combination lock—it takes about five minutes and requires no tools. If you have a keyed lock, you'll need either a shim (a thin piece of metal) or you'll need to cut the lock off. None of these methods will damage your luggage if done carefully.

Key Takeaways

Combination TSA locks can usually be reset by pushing the shackle up firmly while turning the dial, which resets the lock to 0-0-0.
Keyed TSA locks require either a shim inserted between the shackle and body, or cutting the lock with bolt cutters.
A shim is a thin metal strip that costs a few dollars and works on many keyed locks without damaging them.
If you need the lock open when ready and have no tools, bolt cutters are the most reliable option, though they destroy the lock.
TSA locks are meant to be opened by security officers, so the design intentionally allows non-destructive entry methods.

How to reset a combination TSA lock

If your lock has a dial with numbers, you can reset it to the factory combination (usually 0-0-0) without any tools. Push the shackle—the metal U-shaped part—upward as hard as you can while turning the dial. You're looking for resistance or a click as you turn. Once you feel it, note that number. Repeat this for all three dials until you have three numbers that each showed resistance.

Write down those three numbers in order. That's your reset combination. Turn each dial to that number, then pull the shackle up. The lock should open. If it doesn't, try the process again—sometimes the resistance is subtle and you may have missed a number. Once it's open, you can set a new combination by holding the shackle up and turning the dials to your chosen numbers, then releasing the shackle to lock in the new combination.

Using a shim to open a keyed TSA lock

A shim is a thin strip of metal—usually aluminum or stainless steel—that slides between the lock's shackle and body to release the locking mechanism. You can buy a shim online for a few dollars, or make one from a soda can by cutting a thin strip about one inch wide and two inches long. Sand the edges smooth so they don't cut your fingers.

Insert the shim between the shackle and the lock body at the point where they meet. Push it in firmly while jiggling the shackle up and down. You should feel the shackle loosen. Once it does, pull it straight up and the lock will open. This method works on many keyed TSA locks because the internal design is standardized, but not all locks respond to shimming—some have anti-shim features.

The shim method takes two to five minutes and doesn't damage the lock or your luggage. If the shim doesn't work after a minute of trying, the lock likely has anti-shim protection and you'll need to move to bolt cutters.

Cutting off the lock with bolt cutters

Bolt cutters are the most reliable method if you need the lock open when ready and the other methods haven't worked. You can rent bolt cutters from most hardware stores for a few dollars, or buy a pair for $15 to $40. Position the cutting head around the shackle (not the body of the lock) and squeeze the handles together firmly. The shackle will snap and the lock will fall away.

This method destroys the lock, so use it only when you're certain you won't need it again or when the lock is damaged beyond use anyway. It takes less than a minute and won't harm your luggage as long as you cut only the metal shackle. Wear safety glasses if you have them—small metal pieces can fly when the shackle breaks.

When to call a locksmith instead

If your luggage is valuable, the lock is part of an expensive bag, or you want to preserve the lock for future use, a locksmith can often open it without damage. Locksmiths have specialized tools and experience with TSA locks specifically. The cost is usually $20 to $50, which may be worth it if replacing the lock or bag would cost more.

Call a local locksmith and describe the lock type—combination or keyed, and the brand if you know it. Ask whether they can open it without damage before you bring it in. Some locksmiths can pick TSA locks in minutes, while others may need to shim or cut depending on their tools and the lock design.

Preventing this situation with a spare key or written combination

If you use a keyed TSA lock, keep a spare key in a separate location from your luggage—at home in a drawer, or with a trusted person. Write down the key number if it's printed on the lock; many TSA locks can be rekeyed by a locksmith if you have that number, even without the original key.

For combination locks, write the combination on a piece of paper and store it somewhere safe at home, not in your luggage. Some people photograph the combination and keep it in their phone's photo library. This takes 30 seconds and saves you from being locked out of your own bag.

Frequently Asked Questions

Will opening the lock damage my luggage?

The reset method and shim method won't damage your bag at all—they only open the lock. Bolt cutters will destroy the lock but won't harm the luggage itself as long as you cut only the shackle. If you're concerned about your bag, use the reset or shim method first.

Can I open a TSA lock at the airport if I've lost the key?

TSA officers can open TSA locks during security screening, but they won't do it at the ticket counter or baggage claim just because you've lost the key. If you need it open before your flight, use one of the methods here. If you can wait until screening, TSA will open it then, though they may not be able to close it again.

What if the reset method doesn't work?

Not all combination locks respond to the reset method—some have additional security features. If you've tried it twice and felt no resistance, move to the shim method if you have one, or bolt cutters if you need it open when ready. A locksmith can also help if you want to avoid destroying the lock.

Is it legal to open my own TSA lock?

Yes. You own the lock and the luggage, so you can open it by any method. The concern is only whether you want to preserve the lock for future use—if you don't, bolt cutters are the fastest option.

Can I use a shim on any TSA lock?

Shimming works on many keyed TSA locks, but not all. Newer locks and some premium brands have anti-shim features that prevent the shackle from releasing when a shim is inserted. If the shim doesn't work after a minute of trying, the lock likely has this protection and you'll need bolt cutters or a locksmith.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.