Delta Airlines allows passengers to cancel their flights with flexible options, depending on the ticket type. Most Main Cabin and higher-class tickets can be canceled without fees, while Basic Economy fares are usually non-refundable. Refundable tickets qualify for a full refund, whereas non-refundable tickets receive an eCredit for future travel. Cancellations can be made online, thr... https://americanairtravel.com/delta-airlines-flight-cancellation-and-refund-policy/