Delta Airlines allows passengers to bring small pets in the cabin as part of their Delta pet policy in cabin. The policy states that the pet and carrier must be able to fit under the seat in front of the passenger and the pet must remain in the carrier throughout the flight. Delta Airlines charges a pet fee for in-cabin travel, which starts at each way for domestic flights. Passengers should also ensure that their pet meets all the necessary requirements for travel, including health certificates and vaccination records. With these guidelines in mind, passengers can have a smooth and enjoyable trip with their furry companions on Delta Airlines.