Spirit airlines pet policy can be reached at +1(805)-309-5131, which is a toll-free number, for reservations. The workforce at Spirit Airlines is available seven days a week, 24 hours a day, seven days a week. We only allow six (6) pet containers on domestic Spirit Airlines flights, per the airline's pet policy. As a result, booking your pet's journey at the same time as your flight would be beneficial. As a result, you will be able to easily reserve containers for your pet.