Traveling with one of the most prestigious airlines in the American aviation industry provides you the assurance that your safety and comfort are our top priorities. We want to make the time-consuming procedure of delta flight cancellation as simple as possible for you. If you need to cancel a non-refundable airline ticket, you may do it either online or by calling our 24-hour hotline. They will assist you if you have any problems. The price of the ticket at the time of purchase. The leftover balance will be reimbursed to you as an e-credit that you may apply against the purchase of another flight ticket within a year of the cancellation date. Some tickets, such as those in Economy class, cannot be canceled.