USB Flash Drive
USB flash drives are allowed in carry-on and checked bags without any restriction.
Carry-on
Allowed
Checked
Allowed
Carry-on details
Allowed. Flash drives have no battery and no liquid, so TSA places no restriction on carrying them in your bag.
Checked-bag details
Allowed. Flash drives can also go in a checked bag, though carry-on is a safer bet if the drive holds anything you can't afford to lose.
FAQ
- Are USB flash drives restricted at airport security?
- No. Flash drives contain no battery, so they're unrestricted in both carry-on and checked bags.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-30
Final decision rests with the security officer at the checkpoint.