Delta will allow small dogs, cats, or household birds to fly in the cabin as long as they fit in an IATA-compliant travel carrier that fits under the seat in front of you. There is a fee for carry-on pets, which can vary based on destination. Keep in mind that your pet and their kennel will count as your carry-on bag.
Some of Delta's additional in-cabin pet requirements include:
Delta does have special exceptions for service animals and U.S. Military or U.S. State Department Foreign Service Offices.
Delta will only allow pets to travel as checked or accompanied baggage for passengers or spouses who are U.S Military or U.S. State Department Foreign Service Officers (FSO) on active transfer orders.
There is an additional fee and pets must be booked as checked baggage at least 48 hours prior to arrival. Pets still need to meet all regulations for the destination.
Other requirements include:
For pets traveling as accompanied baggage or cargo, the temperatures must be between 80˚F (26.5˚C) and 20˚F (-6.5˚C). If the temperatures at any point during your pet's trip (at origin, transit, or destination) go above or below that range, then pets will not be accepted for travel. If the temperatures are between 20˚F (-7˚C) and 45˚F (7˚C), then an Acclimation Certificate is required. It is essential to note that Delta Airlines reserves the right to decline travel for any live animals if their well-being is uncertain, or if extreme weather conditions could potentially jeopardize their health.
Delta does not accept snub-nosed (brachycephalic) breeds as checked baggage. These dog breeds include Affenpinscher, American Bully, American Pit Bull Terrier, American Staffordshire Terrier, Boerboel, Boston Terrier, Bull Terrier, Boxer (all breeds), Brussels Griffin (Petite Brabacon), Bulldog (all breeds), Cane Corso, Chow Chow, Dogo Argentino, Dutch Pug, Douge de Bordeaux, English Toy Spaniel, Japanese Chin (Japanese Spaniel), Lhasa Apso, Mastiff (all breeds), Pekinese, Pit Bull, Presa Canario, Pug (all breeds), Shar Pei, Shih Tzu, Staffordshire Bull Terrier, and Tibetan Spaniel. Snub-nosed cats include British Shorthair, Burmese, Exotic Shorthair, Himalayan, Persian, and Scottish Fold.