subject: Delta Airlines – A simple way of flying [print this page] Delta Airline allows passengers to travel with their pets in their cabin with the owners, under certain restrictions. The pet must be kept in a kennel which can fit under the seat in your front. Passengers can check with the reservation department to find out the exact size of the kennel. The pet must be kept inside the kennel with the door closed in the aircraft as well as the lounge and boarding areas. Only one pet per passenger is allowed in the aircraft. To know other rules about carrying pets onboard, get in touch with the airlines.