To cancel a Delta Air Lines flight, go to “My Trips” on the Delta website or app and enter your confirmation number and last name. Select your trip, then choose “Cancel Flight” and follow the prompts. If you cancel within 24 hours of booking, you’ll usually get a full refund. After that, most tickets are canceled for an eCredit you can use later, depending on the fare type. If the cancel option doesn’t appear online, a Delta agent can help walk you through it.
