Checked bags face two threats a carry-on never meets: a screener who may need inside, and a conveyor system that tests every dangling part. This ranking therefore weights TSA acceptance first, then inspection indicators that report an opening, then a shackle or cable that will not snag. Carry-on-only locks with no inspection story do not belong here, even if they are well made.
The Best Luggage Locks for Checked Bags (2027)
Luggage locks for checked bags in 2027: TSA-accepted locks that survive inspection, ranked on indicator visibility, shackle fit and pack size.
The short answer
For checked bags, buy the Forge Open Alert shackle four pack if your pulls accept a shackle, or the Forge cable four pack if they do not. The Master Lock 4688D is the single-bag classic, and the Forge Guardian six pack is the choice for a household that wants a key backup on every bag. Whatever you buy, check the lock on the actual bag before the trip, and keep the code or key somewhere other than the bag itself.
Our top picks at a glance
- Forge Open Alert Shackle Locks, 4 Colours, 4 PackThe family pack benchmark: four 3-digit shackle locks in four colours, each with a red inspection indicator.Best overall for checked bags
- Forge Open Alert Cable Locks, Black, 4 PackThe flexible answer to awkward zipper pulls: four black cable locks with a search alert indicator.Best cable set for checked bags
- Forge Dual-Opening Combination and Key Locks, 6 PackThe forgetful traveller's insurance: open by code or by key, with the key able to recover a lost code.Best for households
- Master Lock 4688D Cable Combination Lock, Silver, SingleThe long-running single: a silver cable combination lock with a flexible braided steel shackle.Best single for checked bags
- Master Lock 4689Q Keyed Luggage Locks, 4 PackThe keyed family pack: four shrouded locks with keys, built to resist bolt cutters.Best keyed set for checked bags
- SURE LOCK Cable Locks with Open Alert, Purple, 2 PackThe easy-read cable pair: large dials, a purple finish and an indicator that shows inspection.Best easy-read pair for checked bags
- Lewis N. Clark Coated Cable Lock, Grey, 48 inThe long cable: 48 in of coated steel for looping through several pulls or around a bag.Best long cable for checked bags
- Travelon Brass Padlocks, Set of 2The classic pair: two brass keyed padlocks for travellers who never want to set a code.Best classic pair for checked bags
The picks, ranked
Every product in this lineup was picked for this use case, ranked with our strongest choices first. If a product from the wider category does not genuinely fit this scenario, it is not listed here.
| # | Product | Award | Lock type | Body | Indicator | Pack | Acceptance |
|---|---|---|---|---|---|---|---|
| 1 | Forge Open Alert Shackle Locks, 4 Colours, 4 Pack | Best overall for checked bags | 3-digit resettable combination | Zinc alloy | Open alert, red when opened by a screener | 4 locks: green, blue, black, silver | TSA-accepted |
| 2 | Forge Open Alert Cable Locks, Black, 4 Pack | Best cable set for checked bags | Resettable combination, cable | Alloy body | Search alert indicator | 4 locks, black | TSA-accepted |
| 3 | Forge Dual-Opening Combination and Key Locks, 6 Pack | Best for households | - | - | - | 6 locks, black | TSA-accepted |
| 4 | Master Lock 4688D Cable Combination Lock, Silver, Single | Best single for checked bags | - | 1-3/16 in (30 mm) wide metal body | - | - | TSA-accepted |
| 5 | Master Lock 4689Q Keyed Luggage Locks, 4 Pack | Best keyed set for checked bags | - | 1 in (25 mm) wide metal body, shrouded design | - | 4 locks, 4 keys, colours may vary | TSA-accepted |
| 6 | SURE LOCK Cable Locks with Open Alert, Purple, 2 Pack | Best easy-read pair for checked bags | 3-digit resettable combination, cable | Zinc alloy | Open alert indicator | 2 locks, purple | TSA-accepted |
| 7 | Lewis N. Clark Coated Cable Lock, Grey, 48 in | Best long cable for checked bags | - | - | - | - | TSA-accepted, Travel Sentry |
| 8 | Travelon Brass Padlocks, Set of 2 | Best classic pair for checked bags | - | Brass | - | Set of 2 padlocks | TSA-accepted |
Best overall for checked bags
Forge Open Alert Shackle Locks, 4 Colours, 4 Pack
The family pack benchmark: four 3-digit shackle locks in four colours, each with a red inspection indicator.
Strengths
- Four locks in green, blue, black and silver, so each bag or family member gets a distinct colour
- Open alert indicator shows red if a screener opened the lock, so inspection is not a mystery at baggage claim
- 3-digit resettable combination with large, easy-read dials that are simple to set and read in a dim hotel room
- Zinc alloy body gives a solid, weighty feel for a lock this small
Limitations
- A shackle lock only fits zipper pulls and hasps with enough clearance for the steel loop
- Three digits give 1,000 possible codes, which is deterrent level security rather than serious theft resistance
- Four locks mean four codes to remember unless you set the same code on all four
What owners report
Most praised
- Travellers like giving each bag its own colour, which ends the nightly hunt for the right lock
- The red indicator gets mentioned by flyers who want to know a bag was opened before they unpack
- Owners say the dials are large enough to turn without glasses in a hotel room
Common complaints
- Some owners find the shackle too thick for slim zipper pulls on lightweight bags
- A few report the dials feeling stiff on the first few uses until they loosen up
- Owners who set different codes per lock sometimes mix them up across a trip
| Lock type | 3-digit resettable combination |
|---|---|
| Body | Zinc alloy |
| Indicator | Open alert, red when opened by a screener |
| Pack | 4 locks: green, blue, black, silver |
| Acceptance | TSA-accepted |
Best for: Families and frequent flyers who want one lock per bag and a visible sign if a bag was inspected.
Skip if: Your zipper pulls are very small or recessed; a shackle lock needs a pull it can actually thread through.
Best cable set for checked bags
Forge Open Alert Cable Locks, Black, 4 Pack
The flexible answer to awkward zipper pulls: four black cable locks with a search alert indicator.
Strengths
- Braided steel cable threads through zipper pulls and loops that reject a rigid shackle
- Search alert indicator flags a screener inspection, like the shackle set in this guide
- Four black locks cover a family trip or a set of bags without buying twice
- Alloy body keeps the lock light enough to leave on a bag between trips
Limitations
- A cable is easier to snip than a steel shackle, so this is a deterrent, not a vault
- Cable locks can dangle and catch on conveyor belts if the loop is left long
- Resetting the code needs the maker's steps followed in order, and rushing it causes confusion
What owners report
Most praised
- Owners say the cable finally solved bags whose zipper pulls defeated every shackle lock they owned
- The black finish gets called out as the pack that does not clash with any bag colour
- Travellers who lock backpacks and gym bags as well as suitcases like having spares in the pack
Common complaints
- Some owners wish the cable were longer for looping through two zipper pulls at once
- A few report the cable end fraying where it meets the body after heavy use
- Owners note the lock body can swing and tap against a hard case in transit
| Lock type | Resettable combination, cable |
|---|---|
| Cable | Braided steel cable |
| Body | Alloy body |
| Indicator | Search alert indicator |
| Pack | 4 locks, black |
| Acceptance | TSA-accepted |
Best for: Bags with zipper pulls, loops and hasps that a rigid shackle cannot reach or close around.
Skip if: You want a lock for a hard case with a fixed hasp; a shackle lock sits neater there than a cable.
Best for households
Forge Dual-Opening Combination and Key Locks, 6 Pack
The forgetful traveller's insurance: open by code or by key, with the key able to recover a lost code.
Strengths
- Dual opening: the lock opens with its combination or with its key, so a forgotten code is not a ruined trip
- The key can recover the combination, which removes the usual combination-lock dread
- Stainless steel shackle on a six-pack of black locks covers a whole household's luggage
- TSA006 key system, the Travel Sentry system stated for this model
Limitations
- Six locks mean six keys to keep track of, unless the household keeps one set in a known place
- The key is small and easy to lose inside a packed bag if it is not kept in a fixed pocket
- A shackle lock still needs zipper pulls with enough clearance for the loop
What owners report
Most praised
- Owners describe the key backup as the feature that finally let them relax about combination locks
- Families say six locks is the first pack size that actually covers every bag they own
- Travellers like that the black shackle locks look the same on every bag, with no colour confusion
Common complaints
- Some owners admit the spare keys ended up in a different bag from the lock they open
- A few find the shackle stiff to close until the lock has been used a few times
- Owners who only needed two locks say the six pack left four sitting in a drawer
| Opening | Combination or key, dual opening |
|---|---|
| Shackle | Stainless steel |
| Key system | TSA006 |
| Pack | 6 locks, black |
| Acceptance | TSA-accepted |
| Code recovery | Key recovers a forgotten combination, per maker |
Best for: Travellers who have ever stood at a bag with a forgotten code, and families who want spares for every bag.
Skip if: You dislike carrying keys at all; a pure combination lock keeps your pockets empty.
Best single for checked bags
Master Lock 4688D Cable Combination Lock, Silver, Single
The long-running single: a silver cable combination lock with a flexible braided steel shackle.
Strengths
- 1-3/16 in metal body with a vinyl-covered flexible braided steel cable shackle, per the maker
- Cable shackle flexes through zipper pulls and absorbs baggage handling better than a rigid loop
- Set-your-own 3-digit combination, preset to 0-0-0 from the factory
- Limited lifetime warranty from a maker with a long luggage-lock history
Limitations
- A single lock covers a single bag, so families end up buying several
- The silver finish shows scuffs from baggage handling sooner than a dark finish
- Three digits are a deterrent, and a patient thief can work through 1,000 codes
What owners report
Most praised
- Owners say this is the lock they replace like-for-like when an old one finally wears out
- The flexible cable gets credit for fitting bags that rejected rigid shackle locks
- Travellers like that the lock is small enough to leave attached to a bag between trips
Common complaints
- Some owners struggle with the reset sequence and set a code different from the one they intended
- A few report the vinyl cable cover cracking after years of use
- Owners note the dials are small for travellers with large hands or stiff fingers
| Model | 4688D |
|---|---|
| Body | 1-3/16 in (30 mm) wide metal body |
| Shackle | 1-1/2 in (38 mm) vinyl-covered flexible braided steel cable, 1/8 in diameter |
| Combination | Set-your-own 3-digit |
| Acceptance | TSA-accepted |
| Warranty | Limited lifetime warranty, per maker |
Best for: A traveller buying exactly one lock for one bag, from the brand most airports' lock aisles stock.
Skip if: You need locks for several bags; buying singles one at a time costs more than a pack.
Best keyed set for checked bags
Master Lock 4689Q Keyed Luggage Locks, 4 Pack
The keyed family pack: four shrouded locks with keys, built to resist bolt cutters.
Strengths
- Shrouded 1 in metal body design minimises shackle exposure and protects against bolt cutter attacks, per the maker
- Steel shackle, 9/16 in long and 1/8 in in diameter, resists cutting and sawing
- Four locks and four keys in the pack cover several bags or several travellers
- No code to set, forget or reset, which suits travellers who hand bags to different people
Limitations
- A lost key is a bigger problem than a forgotten code, since there is no reset dial
- The small body can be fiddly to grip with gloves on
- Keyed locks need the key on the person, not buried in the bag being locked
What owners report
Most praised
- Owners say the shrouded shape feels harder to attack than an open shackle lock
- Travellers who dislike codes call the key the simplest possible system
- Parents like handing one lock and key to each older child for their own bag
Common complaints
- Some owners find the small keys easy to misplace between trips
- A few report the lock body scratching a bag shell when left swinging loose
- Owners note the colour varies, so the pack may not match a bag set
| Model | 4689Q |
|---|---|
| Opening | Keyed |
| Body | 1 in (25 mm) wide metal body, shrouded design |
| Shackle | 9/16 in (14 mm) long steel shackle, 1/8 in diameter |
| Pack | 4 locks, 4 keys, colours may vary |
| Acceptance | TSA-accepted |
Best for: Travellers who trust a key more than a code, and want four locks for the price of a pack.
Skip if: You travel keyless by choice; a keyed pack adds keys you must carry and keep.
Best easy-read pair for checked bags
SURE LOCK Cable Locks with Open Alert, Purple, 2 Pack
The easy-read cable pair: large dials, a purple finish and an indicator that shows inspection.
Strengths
- Large easy-read dials make setting and reading the code simpler than on slim-dial locks
- Open alert indicator shows when a screener has opened the lock
- Zinc alloy cable body balances weight and toughness for a two-lock pack
- Cable design fits zipper pulls, backpack loops and gym bag hasps alike
Limitations
- Purple is a statement colour, and it will not suit every bag
- Two locks cover two bags, so larger families need a second pack
- A cable lock is a deterrent, and a determined thief can cut a cable faster than a shackle
What owners report
Most praised
- Owners with poor eyesight single out the large dials as the reason they chose this pair
- The purple colour gets praised by travellers who spot their bag instantly
- Several owners keep one lock on a suitcase and one on a backpack for daily use
Common complaints
- Some owners find the purple too bright for a business trip bag
- A few report the indicator staying up after an inspection until the lock is opened and reset
- Owners note the cable is shorter than they pictured for looping two pulls together
| Lock type | 3-digit resettable combination, cable |
|---|---|
| Body | Zinc alloy |
| Indicator | Open alert indicator |
| Dials | Large easy-read dials |
| Pack | 2 locks, purple |
| Acceptance | TSA-accepted |
Best for: Travellers who struggle with small dials, and anyone who wants an inspection indicator on a cable lock.
Skip if: You want a discreet lock; purple is visible from across a baggage hall.
Best long cable for checked bags
Lewis N. Clark Coated Cable Lock, Grey, 48 in
The long cable: 48 in of coated steel for looping through several pulls or around a bag.
Strengths
- 48 in coated steel cable reaches across a large bag or through two distant pulls
- Coating protects bag fabric and zipper pulls from bare steel wear
- 3-dial combination with Travel Sentry acceptance for checked bags
- Grey finish stays discreet on business and leisure bags alike
Limitations
- The long cable must be coiled or looped neatly, or it becomes a snag hazard
- A single long cable secures pulls together but does not lock a bag to anything fixed
- Three dials are a deterrent, and the cable's length does not add theft resistance
What owners report
Most praised
- Owners say the length finally lets them lock both pulls of a wide duffel with one lock
- The coating gets mentioned by travellers whose previous bare cable scuffed a bag
- Several owners use the cable to thread through a bag handle and a zipper pull together
Common complaints
- Some owners find 48 in awkward to stow when they only need a short loop
- A few report the cable kinking if it is coiled tightly for storage
- Owners note the dials are smaller than the large-dial locks in this guide
| Model | TSA83 |
|---|---|
| Cable | 48 in coated steel cable |
| Combination | 3-dial combination |
| Colour | Grey |
| Acceptance | TSA-accepted, Travel Sentry |
Best for: Bags with two zipper pulls far apart, and travellers who want one long cable instead of two locks.
Skip if: You want a compact lock for a small bag; 48 in of cable is a lot to carry for one zipper.
Best classic pair for checked bags
Travelon Brass Padlocks, Set of 2
The classic pair: two brass keyed padlocks for travellers who never want to set a code.
Strengths
- Brass body with a steel shackle gives a traditional padlock look and feel
- Two locks in the pack cover a checked bag and a carry-on, or two travellers
- Keyed opening needs no code setting, memorising or resetting at all
- TSA-accepted, so screeners can open and relock without cutting the lock
Limitations
- Keys must be carried and kept safe, and a lost key is a lock problem, not a reset problem
- A rigid shackle needs zipper pulls with enough clearance, unlike a cable lock
- Brass shows wear and scratches sooner than a coated or dark body
What owners report
Most praised
- Owners say the brass pair feels like a proper padlock rather than a travel gadget
- Travellers who dislike codes call the key the only system they fully trust
- Several owners keep one lock at home for a locker and one in a travel kit
Common complaints
- Some owners find the keys small and easy to drop in a dark bag pocket
- A few report the brass tarnishing after trips through humid climates
- Owners note the shackle is too thick for the slimmest zipper pulls
| Model | 13111 790 |
|---|---|
| Body | Brass |
| Opening | Keyed |
| Pack | Set of 2 padlocks |
| Acceptance | TSA-accepted |
Best for: Travellers who want the simplest possible lock: key in, key out, no code anywhere.
Skip if: You travel without keys on purpose; a combination lock fits that habit better.
Questions, answered
Will TSA cut off my lock?
Not if it is TSA-accepted and in working order: screeners open it with a master key and relock it. A non-accepted lock, a damaged lock or a lock a screener cannot open may be cut. Buy accepted, keep the lock in good order, and check it after every trip.
Should I lock a checked bag at all?
Yes, as a deterrent and as a way to keep zippers shut in transit. A lock stops casual opening and stops a bag bursting open on a conveyor. It does not stop a determined thief with tools, so valuables still belong in a carry-on, not a checked bag.
How do I know if my bag was inspected?
An inspection indicator, like the red alert on Forge and SURE LOCK locks, pops up when a screener opens the lock. Without an indicator, a notice inside the bag is the usual sign. Check contents promptly either way, before leaving the airport.
Every guide on Luggage Locks16 pages
- Topic hubLuggage Locks
- Best ofThe Best Luggage Locks (2027)
- Cable locks exist because shackle locks do not fit every bag. This ranking starts from fit: which pulls, loops and hasps the cable can thread, and whether the length joins one pull or two. Length is then judged as a trade-off, since a long cable that is not managed snags, while a short cable cannot join distant pulls. Indicators and opening type decide the order within each length class.The Best Cable Luggage Locks (2027)
- This ranking is for travellers who have decided that a pure combination lock is not for them, either because codes get forgotten or because keys feel simpler. Within that group, the split is between pure keyed locks, which are simplest but punish a lost key, and dual-opening locks, which forgive both a forgotten code and, with a spare key kept safe, a lost code. The ranking rewards forgiveness: the lock that leaves the fewest ways to be locked out of your own bag wins.The Best Keyed and Dual-Opening Luggage Locks (2027)
- ReviewForge Open Alert Shackle Locks 4 Pack Review (2027)
- ReviewMaster Lock 4688D Cable Combination Lock Review (2027)
- ReviewForge Dual-Opening Guardian Locks 6 Pack Review (2027)
- ReviewSURE LOCK Cable Locks Purple 2 Pack Review (2027)
- ReviewLewis N. Clark Retractable Cable Lock Review (2027)
- ReviewForge Open Alert Cable Locks 4 Pack Review (2027)
- Head to headForge Open Alert 4 Pack vs Master Lock 4688D (2027)
- Head to headForge Cable 4 Pack vs Lewis N. Clark Retractable Lock (2027)
- Buying guideLuggage Lock Buying Guide (2027)
- Fix itForgot Your Luggage Lock Combination? Fixes (2027)
- Fix itLuggage Lock Won't Fit or Close? Fixes (2027)