Airline Pet Travel Guide

A smoother flight starts before you book. Use this guide to organize the details for travelling with your dog or cat, from confirming a pet reservation to preparing for airport check-in.

Start with the airline operating your flight

Pet rules vary by airline, route and aircraft. On a codeshare itinerary, check the operating airline for every flight segment. A passenger ticket does not automatically reserve space for your pet.

  • Confirm whether your pet can travel in the cabin, as checked baggage or through a cargo service on the chosen route.
  • Ask about pet-space availability, eligible species, age restrictions, breed restrictions and seasonal limitations.
  • Confirm the pet fee, cancellation rules and whether your carrier counts toward your baggage allowance.
  • Check connections and the return journey before purchasing a ticket.

Choose the right carrier

Use the airline’s current measurements rather than a product’s “airline approved” label. Ask about under-seat dimensions, acceptable carrier materials and any combined pet-and-carrier weight limit. Allow time for your pet to become familiar with the carrier at home.

Prepare your documents

Ask the airline which documents it needs and separately check government entry requirements. Depending on the journey, you may need vaccination records, a health certificate, import paperwork or other documents. Your veterinarian can help you plan the required appointments and timing.

Your airport checklist

  • Keep reservation confirmations and pet documents accessible, with offline copies.
  • Pack absorbent liners, a spare liner, cleanup supplies and a secure leash or harness.
  • Confirm the airline’s check-in deadline and locate airport pet-relief areas.
  • Follow airline and security staff instructions when handling your pet at screening.
  • Discuss feeding, hydration, anxiety or medication questions with your veterinarian before flying.

Official airline pet policies

For general guidance, see U.S. Department of Transportation: flying with pets.

Crossing a border? Read our International Travel with Pets guide.

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Updated November 11, 2026. Travel rules and provider policies can change. Check the linked official sources before departure.

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