Delta Airlines Cancellation Policy: Highlights Go through the below-listed steps in order to know everything regarding the Delta cancellation policy in a very descriptive way and get it done easily. Delta 24-hour cancellation policy states that customers may simply cancel their reservations without incurring any fees as long as they do so within 24 hours of the original reservation date. If the passenger has applied for a refund of their canceled reservation, then the refund will be liable for many factors like reservation and ticket type. In the event that an issue arises and the airline must cancel the flight, the passenger will get Delta flight cancellation compensation from the airline. Passengers also have the option to convert the reservation ticket into a point that can later be used for future reservations.