1-866-884-3315What is Delta Airlines Cancellation Policy? #New~Cancellation ~Policy https://www.transfermarkt.com/1-866-884-3315what-is-delta-airlines-cancellation-policy-new-cancellation-policy/thread/forum/696/thread_id/21793/page/1#anchor_22401 Yes, there is a 24-hour return policy offered by Delta Airlines. Within 24 hours of making your reservation, you can cancel your flight f... https://www.transfermarkt.com/1-866-884-3315what-is-delta-airlines-cancellation-policy-new-cancellation-policy/thread/forum/696/thread_id/21793/page/1#anchor_22401