American Airlines allows pets to travel in the cabin or cargo, depending on size. In-cabin pets must fit in a carrier under the seat (maximum size: 17” x 11” x 9.5”) and cost $125 each way (Call +1-838-300-3830 for English support or +52-800-9530821 for assistance in Spanish). Only one pet per carrier is allowed. Certain breeds (e.g., Bulldogs, Pugs) are restricted due to safety concerns. For larger pets, cargo travel is available, with specific arrangements for safety. A health certificate from a veterinarian is required for pets traveling on American Airlines. For more details or questions, contact customer service at +1-838-300-3830.