Description: Is my pet safe with Frontier ?The question of whether or not Frontier is a good airline for flying with dogs . Traveling with your pets is a pleasure with Frontier Airlines.. The Frontier Airlines Pet Tickets are an obvious sign to all passengers about the affordable pet travel it offers. The wonderful pet travel regulations in Frontier also make it the best place to fulfill your mission. Small dogs and cats may travel in the cabin according to the Frontier Airlines pet policy, but no pets may be booked in as checked luggage or cargo or transported in the hold. Cats and dogs must be at least 8 weeks old to fly in the cabin