Flying with Pets: Essential Airline Policies and Guidelines

Airlines generally offer three ways for pets to travel. The choice depends on the animal’s size, breed, and the destination’s legal requirements.

Pets in Cabin (PETC)

Most travelers prefer this method, where the pet stays in a carrier under the seat in front of them.

• Size Limits: Typically restricted to small dogs and cats. For example, Delta Air Lines recommends soft-sided kennels with maximum dimensions of 18” x 11” x 11” to fit under most aircraft seats [2].

• Fees: Expect to pay between $95 and $200 per one-way flight for domestic travel.

• Limitations: Most airlines limit the number of pets allowed in the cabin per flight (often 2–6 total). It is first-come, first-served, so booking early is critical.

Pets in Hold (AVIH)

If your pet exceeds cabin weight limits, they may travel as “checked baggage” in a pressurized, temperature-controlled compartment.

• Recent Changes: Many major carriers, including Delta, have implemented embargos on checked pets for the general public, often restricting this service to active U.S. Military or State Department officers on official orders [2].

• Safety Concerns: While the hold is climate-controlled, IATA guidance notes that pets often travel better in the cargo hold because it is dark and quiet, which encourages them to rest [1].

Animals as Cargo

For unaccompanied pets or very large animals, manifest cargo is the only option. This requires dropping the pet off at a cargo terminal rather than the passenger check-in desk.

International and domestic flights have vastly different paperwork needs. Failure to produce these documents will result in an immediate boarding denial.

• Health Certificates: Most airlines and states require a CVI (Certificate of Veterinary Inspection) issued by a USDA-accredited veterinarian within 10 days of travel [4].
• Rabies Vaccination: A valid rabies certificate is mandatory. For dogs entering the U.S., the CDC requires dogs to be at least 6 months old and microchipped [2].
• Breed Restrictions: Many airlines ban “brachycephalic” or snub-nosed breeds (such as Pugs, Bulldogs, or Persian cats) from the cargo hold due to a high risk of respiratory distress at altitude [2].

Similar to how travelers must understand their rights when flying with a disability, pet owners must be proactive in advocating for their animal’s specific physical needs during the journey.

According to the TSA, pets never go through the X-ray machine [3].

1. The Process: You must remove your pet from the carrier and carry them through the metal detector.

2. The Carrier: The empty carrier is placed on the X-ray belt for screening.

3. Control: You must maintain control of your pet with a leash during this process, though the leash should be removed briefly when passing through the detector if it contains metal [3].

Airlines prioritize animal welfare by restricting pet travel during extreme weather. If the forecasted temperature at your origin, connection, or destination is below 20°F (-7°C) or above 80°F (27°C), the airline may refuse to fly the animal in the hold to prevent heatstroke or hypothermia [2].

• In-Cabin is Best for Small Pets: Ensure your carrier is IATA-compliant, leak-proof, and fits the specific dimensions of the aircraft you are flying.
• Book Your Pet When You Book Your Seat: Airlines have a strict “pet cap” per flight. Calling the airline immediately after booking your ticket is the only way to guarantee a spot.
• Verify Breed Policies: If you own a snub-nosed breed, expect to be restricted to cabin travel only.
• Documentation is Time-Sensitive: Start the vet process at least 30 days before international travel, as some countries require rabies titers that take weeks to process [4].

Action Plan for Pet Owners

1. Check Aircraft Type: Some planes (like the Boeing 767 on certain airlines) do not allow pets in the hold at all [2].
2. Acclimatize the Pet: Spend 2–4 weeks letting your pet sleep in their travel carrier before the flight.
3. Timing the Meal: Feed a light meal 2–3 hours before departure, but keep water available until the moment of boarding [1].
4. Avoid Sedation: Veterinary organizations like the American Veterinary Medical Association advise against tranquilizers, as they can interfere with an animal’s ability to regulate its breathing and balance at high altitudes [1].

Effective preparation is the difference between a smooth trip and being turned away at the ticket counter. By following these rigorous airline standards, you ensure that your pet’s safety remains the top priority throughout the flight.