Delta Airlines Cancellation And Refund Policy You will have to pay a cancellation penalty; the penalty will be based on your Delta flight booking. As per the rules, you will receive a complete refund if the flight is cancelled within 24 hours of the booking. It's not guaranteed that you will receive a full refund after cancelling the ticket; it depends on the terms and conditions. If you purchased tickets directly from "Delta Airlines" and would like to cancel your reservation for a particular reason, get in touch with Delta customer support. https://petbaggagepolicy.com/delta-airlines-cancellation-policy