Start With the Airline
The FAA allows airlines to set their own policies for pets in the passenger cabin. That means size limits, carrier dimensions, fees and the number of animals allowed can vary by airline and flight. Confirm the rules directly with the airline before you buy a nonrefundable itinerary.
Reserve Pet Space Early
Even when an airline accepts pets in the cabin, it may limit how many animals can be on one flight. A ticket for you does not automatically reserve space for your pet.
Carrier and Airport Practice
If your pet will travel in a carrier, practice at home. The FAA notes that in-cabin pet containers must meet carry-on stowage requirements and remain properly stowed during aircraft movement, takeoff and landing. Review the FAA flying-with-pets guidance and the airline's own rules.
Health and Destination Requirements
Some destinations require health documentation, testing or advance paperwork. For U.S. interstate and international travel, review the USDA APHIS pet travel information. Hawaii deserves especially early planning; see our Hawaii pet travel guide.