Delta Air Lines boasts a flexible cancellation policy that allows travelers to make changes to their reservations with ease. Whether you?re booking a last-minute trip or planning well in advance, it?s essential to understand the terms and conditions surrounding cancellations. Delta?s policy provides passengers with options to modify or cancel their flights, albeit with certain restrictions depending on the fare type. Delta?s flight cancellation policy offers passengers the flexibility to cancel their reservations within 24 hours of booking without incurring any fees.