Delta Airlines offers a 24-hour risk-free cancellation policy for tickets purchased directly through Delta’s website, app, ticket office, or customer service. Passengers can cancel within 24 hours of booking and receive a full refund if the flight departs at least seven days later. This policy applies to all fare types, including non-refundable Basic Economy tickets. After 24 hours, cancellation terms depend on the fare class. Refundable tickets can be canceled at any time before departure with a full refund. Non-refundable tickets can be canceled for a fee, usually between 99 and 199 dollars, with the remaining value issued as an eCredit valid for one year. Basic Economy fares are non-changeable and non-refundable after 24 hours unless specifically covered under travel waivers or exceptions. If Delta cancels or makes a significant schedule change—such as a delay over three hours for domestic flights or six hours for international flights—passengers are eligible for a full refund to the original form of payment or an eCredit for unused flight segments. Refunds are generally processed within seven business days for credit or debit card payments, and up to twenty days for other methods. Changes made within 24 hours of departure may qualify for same-day flight change, subject to availability and fare rules. If a passenger is unable to travel due to a medical condition, Delta may offer a refund or eCredit upon submission of proper documentation. Bookings made through third parties must be canceled through the original booking source. Group travel and vacation packages follow separate cancellation rules. Passengers are encouraged to retain booking details and cancellation confirmation for recordkeeping.