If you're travelling to or through the United States, a TSA-approved lock isn't just a good idea — it's essential. Without one, US airport security can cut your lock off to inspect your bag, leaving your luggage unsecured for the rest of your journey. Here's everything Australian travellers need to know about TSA locks.
What Is a TSA Lock?
A TSA lock (Transportation Security Administration lock) is a luggage lock that can be opened by US airport security using a master key, without breaking or cutting the lock. TSA agents are authorised to inspect checked baggage, and if they can't open your lock, they'll cut it off.
TSA-approved locks are identified by a red diamond logo on the lock body. This indicates the lock is part of the Travel Sentry® or Safe Skies® programme and can be opened by TSA master keys.
Do I Need a TSA Lock?
You need a TSA lock if you're:
- Flying to the United States
- Transiting through a US airport (even if the USA isn't your final destination)
- Flying on a US carrier that may apply TSA rules to international routes
For travel to other destinations, a standard combination or keyed lock provides the same level of security without the TSA requirement. However, many travellers use TSA locks for all travel simply for convenience.
Types of TSA Locks
Combination TSA Locks
The most popular type. You set a 3 or 4-digit combination and open the lock without a key. No risk of losing a key, and you can reset the combination if needed. Available as padlocks for zippers or built into luggage.
Keyed TSA Locks
Traditional key-operated locks with TSA master key access. More secure than combination locks against brute-force attacks, but you need to keep track of the key.
Cable TSA Locks
A flexible steel cable that threads through multiple zipper pulls, securing them together. More versatile than a fixed padlock — one cable lock can secure all zippers on a bag simultaneously.
Built-In TSA Locks
Many quality suitcases include a built-in TSA combination lock integrated into the frame. Convenient and eliminates the need for a separate padlock. Check that your luggage has this feature if you travel to the USA regularly.
How to Set a TSA Combination Lock
- Open the lock using the default combination (usually 0-0-0)
- Find the reset button (usually a small pin hole on the side)
- Press and hold the reset button with a pen or pin
- Set your new combination by rotating the dials
- Release the reset button
- Test the new combination before closing your bag
Choose a combination you'll remember but that isn't obvious (avoid 1-2-3 or your birth year). Write it down and store it separately from your luggage.
TSA Locks for Different Bag Types
Hard-Shell Suitcases
Most quality hard-shell suitcases include a built-in TSA lock. If yours doesn't, use a TSA padlock through the zipper pulls. Browse our check-in luggage range — many include built-in TSA locks.
Soft-Shell Suitcases and Bags
Use a TSA padlock or cable lock through the zipper pulls. A cable lock is particularly useful for bags with multiple compartments as it can secure all zippers at once.
Backpacks
A small TSA padlock through the main compartment zipper pulls adds security in accommodation and airports. For anti-theft backpacks, the lockable zipper system is often built in.
Beyond TSA Locks: A Complete Luggage Security Strategy
- RFID-blocking wallet — protect your cards and passport from digital theft
- Anti-theft bag — slash-proof panels and hidden pockets for day-to-day security
- Travel neck pouch — keep your passport hidden under clothing in high-risk areas
- Luggage tags and covers — identify your bag quickly and protect it from scuffs
- Full travel security range — browse all security products
Frequently Asked Questions
Will TSA cut my lock if I use a TSA-approved lock?
No — that's the whole point. TSA agents have master keys that open TSA-approved locks without damaging them. If you use a non-TSA lock, they may cut it off to inspect your bag.
Do I need a TSA lock for Australian domestic flights?
No — TSA locks are specifically for travel to or through the USA. For Australian domestic flights, any combination or keyed lock works fine. That said, many travellers use TSA locks for all travel for simplicity.
Can TSA open any lock with their master key?
No — TSA master keys only open locks that are part of the Travel Sentry® or Safe Skies® programme (identified by the red diamond logo). Non-approved locks will be cut off if TSA needs to inspect your bag.
How secure are TSA locks against theft?
TSA combination locks provide a reasonable deterrent against casual theft. They're not designed to be high-security locks — a determined thief with tools can defeat them. Their primary purpose is to allow TSA inspection while keeping your bag closed during normal handling.
What if I forget my TSA lock combination?
Most TSA padlocks can be reset if you can open them first. If you're locked out, contact the manufacturer — some offer a reset service. For built-in suitcase locks, the manufacturer may be able to help with a reset procedure.
Are TSA locks required for checked baggage?
Not required, but strongly recommended for travel to or through the USA. Without a TSA lock, your bag may be opened and left unsecured if TSA needs to inspect it.
Browse our full range of TSA-approved locks — combination, cable, and keyed options available with fast shipping across Australia.
Related Guides
- The Complete Guide to Travel Security for Australians
- Anti-Theft Travel Security: How to Protect Your Valuables Overseas
- Anti-Theft Travel Bags: What to Look For and Why They're Worth It
- Travel Locks Buying Guide: How to Choose the Right Lock
- The Ultimate Packing Checklist for Australian Travellers (2026 Edition)