Delta Airlines Cancellation Policy, allowing passengers to cancel flights within 24 hours of booking for a full refund. After this period, cancellation fees may apply depending on the fare type. For refundable tickets, you can cancel anytime and receive a refund. Non-refundable tickets incur a fee, but the remaining value can be used for future travel. Delta also provides additional options such as travel insurance and fee waivers under certain conditions. Always review Delta current policies before making changes to your reservation to ensure you understand the applicable terms and conditions.