Is there a deadline for reserving a pet seat before the flight?

We recommend reserving your pet tickets as soon as possible to ensure there are pet seats available; but also to ensure you have sufficient time to arrange a vet visit for required documentation for travel. Pet tickets can be purchased up to the flight check-in process. Once you have checked into a flight, you will not be able to add a pet to your existing reservation. 

If you elected to purchase the document check service, you must submit your documents at least 72 hours before your flight.