When should I start preparing for pet travel?

Start at least 2–3 weeks before your flight. This gives time for vet visits, carrier training, and booking your pet's airline reservation.

What size carrier do I need for my pet?

Most airlines require carriers no larger than 18×11×11 inches. Soft-sided carriers are preferred because they flex to fit under the seat.

Do I need to feed my pet before the flight?

Feed your pet a light meal 4–6 hours before the flight. Avoid feeding right before departure to prevent nausea. Offer water up until boarding.

Can I sedate my pet for the flight?

No. Nearly all airlines prohibit sedated pets due to health risks at altitude. Consult your vet about natural calming alternatives instead.

What if my pet has an accident in the carrier?

Line the carrier with absorbent pee pads. Pack extra pads, paper towels, and a plastic bag in your carry-on for quick cleanup.

Pet Travel Checklist for Flights — USA (2026)

Complete pre-flight checklist for traveling with your pet. Covers documents, carrier prep, health requirements, airport tips, and airline booking steps.

Last updated: June 2026

Quick Answer

Book your pet's spot when you book your flight — call the airline to confirm.
Schedule a vet visit 7–10 days before departure for a health certificate.
Buy an airline-approved soft-sided carrier and let your pet practice in it.
Pack essentials: water bowl, treats, pee pads, and a familiar blanket.
Arrive 30+ minutes early and keep your pet calm through security.

About This Guide

This guide compares pet travel policies across major U.S. carriers. All fees and policies are verified against official airline sources and updated for 2026. Prices shown are one-way in-cabin pet fees unless otherwise noted.

When choosing an airline for pet travel, consider not just the pet fee but also the total ticket cost, carrier size requirements, weight limits, and route availability. A cheaper pet fee on a budget airline may be offset by fewer route options or stricter carrier dimensions.

Key Considerations for Pet Travel

Health certificate required within 10 days of travel (cost: $50-$200)
Airline-approved soft-sided carrier must fit under the seat in front of you
Most airlines limit in-cabin pets to cats and dogs under 20 lbs (carrier included)
Round trip pet fees are typically double the one-way fee
Cargo fees range from $200-$1,000+ for pets that cannot fly in cabin
International travel requires additional documentation (import permits, microchips, titer tests)

Frequently Asked Questions

When should I start preparing for pet travel?: Start at least 2–3 weeks before your flight. This gives time for vet visits, carrier training, and booking your pet's airline reservation.
What size carrier do I need for my pet?: Most airlines require carriers no larger than 18×11×11 inches. Soft-sided carriers are preferred because they flex to fit under the seat.
Do I need to feed my pet before the flight?: Feed your pet a light meal 4–6 hours before the flight. Avoid feeding right before departure to prevent nausea. Offer water up until boarding.
Can I sedate my pet for the flight?: No. Nearly all airlines prohibit sedated pets due to health risks at altitude. Consult your vet about natural calming alternatives instead.
What if my pet has an accident in the carrier?: Line the carrier with absorbent pee pads. Pack extra pads, paper towels, and a plastic bag in your carry-on for quick cleanup.