Global flight baggage guide
Why can airport security and airline rules give different answers?
Security decides whether an item may pass the checkpoint; the airline decides whether it may be carried on its aircraft; customs decides whether it may enter a country.
Scope
Global explanation of separate authorities; always follow the strictest applicable requirement.
Before-you-fly checklist
- 1Check departure security first.
- 2Check the operating airline for flight carriage.
- 3Check destination customs for arrival.
Reviewed: 2026-09-09
Official sources
Rules vary by airline and route
Always verify important restrictions with your airline and the official security authority before departure.