Insulin
Insulin and diabetic supplies are allowed in carry-on in reasonable quantities, exempt from the liquids rule.
Carry-on
Allowed
Checked
Allowed
Carry-on details
Allowed. Insulin, along with related supplies (syringes, pumps, alcohol swabs, and cooling packs for the insulin), is exempt from the 3-1-1 liquids rule. Carry-on is recommended so it stays temperature-controlled and with you.
Checked-bag details
Allowed, but carry-on is strongly recommended — insulin can be damaged by cargo-hold temperature extremes.
Special instructions
You do not need a prescription label, but having your insulin identifiable can speed up screening. Cooling packs/gel packs used to keep insulin cold are allowed even if partially frozen.
Related rules
FAQ
- Can I bring insulin cooling packs through security?
- Yes — gel or ice packs used to keep insulin cold are allowed in carry-on, even if they are partially frozen or slushy, because they're considered medically necessary.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-29
Final decision rests with the security officer at the checkpoint.