01The rules in detail
Rules are set by the airline and destination country, not security. Cabin pets: weight limits around 8 kg including the carrier, one per passenger, fee per segment, booked in advance (limited slots). Checked or cargo: crate standards (IATA), temperature embargoes in summer and winter, and breed restrictions for snub-nosed dogs. International: rabies vaccination, microchip, health certificate within 10 days, and for the EU an animal health certificate or pet passport; the UK does not allow pets in the cabin on arrival; Australia and NZ require quarantine. Service animals have separate rules.
02Tips
- Start paperwork 3–6 months ahead for international moves.
- Book the pet slot before the human ticket — they sell out.
03Frequently asked
Can I bring a pet in my carry-on?
Yes, with limits. Small cats and dogs can fly in the cabin in an approved under-seat carrier on many airlines for a fee; larger pets travel as checked baggage or cargo. International travel requires vaccinations, microchips and paperwork weeks to months ahead. Many airlines have suspended pets in the hold on long-haul.
Can I pack a pet in checked luggage?
Yes, with limits. Small cats and dogs can fly in the cabin in an approved under-seat carrier on many airlines for a fee; larger pets travel as checked baggage or cargo. International travel requires vaccinations, microchips and paperwork weeks to months ahead. Many airlines have suspended pets in the hold on long-haul.
Are the rules the same outside the US?
Mostly similar for liquids and batteries, which follow international standards, but sharp objects, tools, lighters and self-defense items vary widely by country. Check the departure airport's rules and the destination's laws.
TSA and other agencies allow officers to refuse any item they judge unsafe, and rules change. This page summarises published guidance as of the verified date; confirm on tsa.gov or your airport's site before packing anything unusual.