Call +1-844-838-4902 24-Hour Cancellation Policy: Delta Air Lines provides a 24-hour cancellation policy. If you book a flight at least seven days before departure and cancel within 24 hours of booking, you are eligible for a full refund without any cancellation fees. For assistance, call +1-844-838-4902. https://community.icedrive.net/t/1-844-838-4902-delta-airlines-cancellation-rules-a-comprehensive-guide/10068