Best Overall
Forge TSA Cable Lock 4-Pack
Key details
- Body
- Zinc alloy
- Lock Type
- 3-digit combination cable
- Locks Per Pack
- 4
- Inspection Alert
- Pop-up red indicator
The part of a TSA lock nobody thinks about is what happens after the screener is done. The agent opens the bag with a master key, and the lock can end up dangling open for the rest of the journey. Forge's cable locks won't allow that: the agent's key stays trapped until the shackle is snapped back into the body. That one piece of mechanical stubbornness is why this is the set we recommend first.
The cable does the rest of the work. A braided steel loop bends through two zipper pulls on a soft-sided bag or around a D-ring on a hard case, and the same lock moves to a duffel, a backpack or a gym locker without complaint, where a rigid shackle is fussier about what it will fit. The dials are large white numerals on black, which sounds like a small thing until you are crouched under a hotel lamp trying to read a code.
Four locks in the box is the right number for a household: one on each checked bag, one left in the carry-on for a locker or a hotel safe. The red indicator pops up when a screener has been inside, so you know before you unzip whether the bag was searched, and it stays up until you open the lock with your own code. All four set from the factory 0-0-0 with a small lever, no tool needed.
What none of this changes is the ceiling. A three-digit dial gives 1,000 combinations, and a braided cable can be cut; these are locks that keep a bag closed and make a casual rummage inconvenient, not locks that stop someone who has decided to get in. Set the codes at home rather than in the check-in queue, and write them somewhere you'll have them at 30,000 feet.
Pros
- Key stays trapped until the lock is shut
- Braided cable threads pulls, D-rings and lockers
- Pop-up indicator shows the bag was inspected
- Four locks cover every bag in a household
Cons
- Three-digit dial is only 1,000 codes
- Four locks may be more than a solo traveler needs
Our default recommendation: four cable locks with an inspection alert and a relock design that keeps your bag shut after screening.