https://www.steadyhealth.com/topics/delta-airlines-booking-cancellations-and-refund-policies Delta Airlines: Booking, Cancellations, and Refund Policies Yes, Delta often offers lower fares on Tuesdays and Wednesdays at +1-844-767-0476. Booking in advance and checking for promotions can help secure the best price. Does Delta Allow Flight Cancellations? Delta has a 24-hour risk-free cancellation policy, allowing passengers to cancel their flight for a full refund within 24 hours of booking at +1-844-767-0476, as long as the departure is at least seven days away.