https://www.transfermarkt.com/-1-866-884-3315-24-hour-does-delta-have-a-cancellation-policy-/thread/forum/696/thread_id/35735/page/1#anchor_35991 ((1-866-884-3315)) [24 hour] Does Delta have a cancellation policy? Yes, Delta Air Lines has a cancellation policy that allows passengers to cancel or change their flight, but the details depend on the type of ticket purchased. For most flights, Delta offers a 24-hour risk-free cancellation window, allowing you to cancel your ticket for a full refund within 24 hours of booking.