Spirit Airlines Pet Carrier Policy and Requirements
Spirit Airlines allows small dogs and cats in the cabin if they fit in an approved soft-sided carrier that can slide under the seat in front of you. The carrier must be ventilated on at least two sides and remain closed for the entire flight. As of the latest policy updates, the carrier dimensions cannot exceed 18 inches long by 11 inches wide by 11 inches high, and the combined weight of the pet and carrier must not exceed 20 pounds. Pets must remain inside the carrier for the entire time they are in the gate area and onboard the aircraft, and only one pet per passenger is permitted. For the most current carrier size and documentation rules, check the official Spirit Airlines pet travel page Spirit Airlines Pet Travel.
Spirit Airlines charges a non-refundable pet fee for in-cabin pets, which is typically collected at the time of booking or check-in. The standard fee for a domestic U.S. flight is $110 each way per pet, and this applies to both dogs and cats. Service and emotional support animals are no longer recognized under the updated Department of Transportation rules, so only pets traveling in carriers qualify for the in-cabin option. If the carrier does not fit under the seat, the pet may need to be checked as cargo or rebooked on a different itinerary. International flights may have different fees and stricter carrier requirements, so you should verify the details on the Spirit Airlines website Spirit Airlines Pet Fees.
Best Pet Carriers for Spirit Airlines Flights
Top-rated soft-sided carriers that meet Spirit Airlines requirements include models from brands such as Sherpa Original Deluxe, PetFusion, and Sleepypod. The Sherpa Original Deluxe is a popular choice because it is airline-approved, has mesh ventilation panels, and includes a top-loading zipper and a secure seatbelt strap. The PetFusion Ultimate Pet Carrier is another option that features a rigid bottom shell, ventilated mesh windows, and a water bottle pouch, and it fits within the 18 x 11 x 11 inch limit for Spirit Airlines. The Sleepypod Air In-Cabin Carrier is designed for smaller pets and offers a lightweight shell, mesh ventilation, and a convenient shoulder strap, making it a practical choice for travelers who prioritize comfort and compliance. When choosing a carrier, verify the exact dimensions and weight limit on the carrier label and compare them against the latest Spirit Airlines cabin pet policy Forbes Travel Pet Gear.
Hard-sided carriers are generally not accepted for in-cabin travel on Spirit Airlines because they cannot compress under the seat, but some travelers use crash-tested hard-shell carriers that meet the size limit if the airline has not updated its restrictions. The International Air Transport Association maintains a database of airline-specific pet carrier requirements, and checking IATA guidelines can help you confirm whether a hard-sided model is permitted. For pets that are close to the 20-pound combined weight limit, owners often choose carriers with slim profiles and lightweight frames to avoid excess fees or denied boarding. You can also look for carriers with a removable top half, which makes it easier to place the pet inside at the airport without unbuckling the entire carrier. Always check the carrier tag for the IATA-compliant or airline-approved label before purchasing IATA Pet Carrier Guidelines.
Spirit Airlines Pet Check-In Process and Tips
To check in a pet for a Spirit Airlines flight, you must reserve the pet in advance because Spirit limits the number of pets allowed in the cabin per flight, and availability is first-come, first-served. At the airport, you will need to present a current vaccination record, a government-issued health certificate if required for your destination, and