Luggage Locks That Make Sense for Checked Bags and Carry-On Zippers

You land after a long flight, grab your suitcase from the carousel, and notice the zipper pull is slightly open. Nothing is missing, but the feeling is unpleasant, and it is exactly why many travelers add a small lock before heading to the airport. The best luggage lock for most people is a combination lock that carries a TSA-accepted mark, because it lets screening officers open it with a master key instead of cutting it off.

Locks will not stop a determined thief, since most zippers can be pried with a pen, but they deter casual tampering and keep zippers from drifting open. This guide covers what to look for, how the standard options compare, and five locks sold by well-known luggage and security brands. As of 2026, the TSA-accepted system is still the dominant standard for travel within and into the United States.

Quick Picks

How to Choose

Insist on a TSA-accepted or Travel Sentry mark

If a lock lacks a recognized mark, screening officers may cut it off to inspect your bag, and the damage is rarely compensated. Look for a red diamond logo or the words TSA Accepted or Travel Sentry on the body. A good rule of thumb is to never buy an unmarked padlock for flights departing from or arriving in the United States, regardless of how sturdy it looks.

Decide between a combination and a keyed design

Three-digit combination locks are the usual choice because there is no key to lose. Keyed locks suit travelers who dislike remembering numbers, but a lost key at the destination is a real problem. Most buyers are better served by a three-digit dial that can be reset, and a code written in your phone notes. Shorter codes are less secure, yet speed matters at a busy airport.

Match the shackle to your zipper pulls

Measure the gap between your zipper pulls before buying. A rigid shackle needs holes large enough to pass through both pulls, while a flexible cable can loop through awkward hardware. If your bag uses a built-in locking port, look for a lock that fits that port, otherwise the lock is useless. Thin cables are lighter, but thick shackles resist cutters better.

Consider a multi-pack and visibility

Most suitcases have two zipper pulls, so you need at least two locks. Buying a set of two or four avoids mismatched codes. Brightly colored or distinctive locks double as identifiers on a crowded carousel, which can make it easier to spot your bag. Choose metal construction over thin plastic if the bag will be checked and handled roughly.

Finally, think about how often you will actually use the dial. Large numbers are easier to read in a dim baggage hall, and a smooth, tactile wheel is far easier to operate with cold or tired fingers than a stiff one. If you travel with children or older relatives, simpler dial layouts beat novelty features every time, and a lock that clips to a zipper pull while open is less likely to be dropped and lost.

Our Picks Reviewed

Master Lock 4688D Set Your Own Combination TSA Accepted Luggage Lock

This lock combines two features that travelers look for: a combination you choose yourself and TSA acceptance written into the product name.

• Pro: set-your-own combination means you can use a code you already remember, which reduces the chance of being locked out of your own bag.
• Pro: Master Lock is a household name in padlocks, so replacements and instructions are easy to find.
• Con: a small luggage lock offers deterrence, not true security, because the zipper itself can still be forced.
• Skip it if your suitcase has a built-in integrated lock port, since you would not need an extra device, or if you travel only on routes where TSA acceptance is irrelevant.

It suits travelers who want a straightforward, recognizable lock without extra features. Buy one for each zipper pull and record the codes before you leave home, ideally in a note stored on your phone.

Samsonite Travel Sentry Approved Combination Lock

Samsonite is one of the best-known luggage names, and this lock stresses Travel Sentry approval, the program that works alongside TSA master keys.

• Pro: a luggage maker’s own lock is designed with suitcase zippers in mind, so fit with common pulls is typically good.
• Pro: Travel Sentry approval lets inspectors open it without cutting, preserving the lock after screening.
• Con: a brand-name accessory sometimes carries a premium over generic locks that do the same job.
• Skip it if you want a cable-style design or a keyed lock, since the name points to a combination type.

It fits people who already own a Samsonite case and like matching gear. As with any combination lock, change the factory code immediately, because default settings are widely known, and test the dial several times before packing so the numbers do not stick.

Lewis N. Clark TSA Approved Combination Lock

Lewis N. Clark focuses on travel accessories, and this lock follows the familiar format of a combination dial with TSA approval.

• Pro: a travel-specialist brand usually designs locks for suitcases and backpacks rather than for lockers or sheds.
• Pro: the TSA-approved label means checked bags are less likely to suffer cut locks during screening.
• Con: a simple combination lock does not add alarms or tracking, so valuables should still travel in your carry-on.
• Skip it if you want a smart lock with app control, because the product name describes a basic combination design.

This is a fair choice for occasional flyers who want something dependable for family trips. Keep a spare in your toiletry bag, because a lock that jams on the road cannot be repaired easily, and a replacement is hard to find at a rental-car counter or resort. Sets that include several locks make the spare effortless, and a matching code across every bag saves you from juggling numbers.

Travelon Set Your Own Combination Lock

Travelon builds organizers and security-minded travel gear, and this lock puts the set-your-own-combination feature front and center.

• Pro: choosing the code yourself avoids memorizing a random factory number.
• Pro: travel-focused brands usually keep designs compact, which suits small zipper holes on backpacks and duffels.
• Con: the name does not mention TSA acceptance, so confirm the mark on the package before taking it on a flight.
• Skip it if you only want locks that are explicitly marked for screening, or if you need a keyed design.

It is best for shoppers who also use locks on gym lockers or hostel storage, where a reset code is convenient. Always verify that the lock carries the red diamond or Travel Sentry mark before relying on it at an airport checkpoint, since the screening process is the main reason to carry a luggage lock. Because the name describes only the code feature, treat any claim beyond that with healthy caution and read the package carefully.

Forge TSA Luggage Lock

Forge is a smaller name in this category, and the product label tells you exactly what to expect: a lock intended for TSA-screened bags.

• Pro: a plain TSA luggage lock keeps the purpose clear and the use simple.
• Pro: independent brands often sell their locks in multi-packs, which can reduce the number of purchases needed for several bags.
• Con: a lesser-known brand offers fewer reviews and a thinner track record, so inspect the finish and shackle when it arrives.
• Skip it if you prefer a household name or need documentation for warranty claims.

It fits families and group travelers who need several locks across multiple suitcases and are comfortable with a straightforward product. Open and close the dial a few times at home, confirm the shackle clicks fully, and keep the receipt in case a unit fails early.

Which One Fits

• Travelers who want a famous padlock maker: Master Lock 4688D Set Your Own Combination TSA Accepted Luggage Lock.
• Samsonite suitcase owners: Samsonite Travel Sentry Approved Combination Lock.
• Frequent flyers who like travel-brand gear: Lewis N. Clark TSA Approved Combination Lock.
• Gym, hostel and travel dual use: Travelon Set Your Own Combination Lock.
• Families outfitting several bags: Forge TSA Luggage Lock.

If you also want to keep your cards safe in transit, read about the best minimalist wallet with coin pocket for a slim travel option.

Common Mistakes

• Buying a non-TSA padlock. Inspectors may cut it, and you are left with a damaged bag.
• Leaving the default code. Factory combinations are widely known, so change them before the first trip.
• Locking valuables in checked bags. Electronics, jewelry and medication belong in your carry-on regardless of locks.
• Forgetting the code. Save it in a secure phone note and keep a photo of it separate from the bag.
• Using only one lock on a two-pull zipper. A single lock leaves the second opening exposed.

FAQ

Will airport staff open my lock?

If the lock is TSA-accepted, officers can open it with a master key and relock it. Unmarked locks may be cut.

Are luggage locks truly secure?

They deter casual access and keep zippers closed, but they do not defeat a determined thief with simple tools.

Can I use a luggage lock on a backpack?

Yes, if the zipper pulls have holes large enough for the shackle. Smaller shackles or cables fit better.

Should I lock a carry-on?

It is optional because you keep it with you, but a lock helps in crowded stations. Pair it with a sturdy case; our guide to the best luxury womens wallet covers dressier carry choices.

How many locks do I need?

One per zipper pull pair, so two for a standard suitcase. A multi-pack keeps codes consistent across bags, which is especially useful for families who share one set of numbers and do not want to memorize several.

What should I do if my lock was cut open?

Photograph the bag and the cut lock, then report it to the airline before leaving the airport. Screening agencies usually leave a notice inside the bag that explains the inspection, and keeping that notice helps any claim.