Call United Airlines reservations for complete details. Carry-on A small dog, cat or domesticated household bird can travel with you in the passenger cabin if the pet is small enough to fit comfortably in a kennel that is placed under the seat. Animals are never allowed out of the kennel during flight. An unaccompanied pet will travel as part of the cargo system. Animals in the cargo system are transported in pressurized compartments.
Fees vary based on weight and size of the kennel.
Extreme weather guidelines will apply, preventing cargo shipment of any live animal when the temperature is forecast to exceed 85 degrees Fahrenheit at any point in the animal's journey. If your pet will be unaccompanied, call United Cargo . Rules and Guidelines Look here for tips, guidelines, and questions to consider when your pet travels. Kennels You and United must follow USDA regulations on the size of your pet's kennel. The kennel must be sturdy, properly ventilated, and large enough for your pet to stand, lie down, and turn around freely.