You are able to cancel your reservation for any reason within the 24-hour risk-free cancellation period without incurring charges. All tickets booked directly from Delta Airlines are subject to the Delta 24 hour Cancellation. Regardless of your fare type. Customers who have refundable tickets may obtain a refund from Delta by completing out an electronic form on the company's website and submitting it. Holders of nonrefundable tickets can use the same form to both cancel their trip and get an eCredit.