Delta Air Lines' flight rerouting policy is designed to provide flexibility and assistance to passengers facing disruptions in their travel plans. When a flight is delayed, canceled, or significantly changed due to reasons within Delta's control, such as mechanical issues, the airline typically rebooks passengers on the next available flight at no additional cost. In cases of weather-related disruptions or other events outside the airline’s control, Delta still endeavors to find alternative flights, though the options may be more limited. Passengers are generally rebooked automatically, and notifications are sent via the contact information provided during booking.

Delta’s policy also includes provisions for voluntary changes, allowing passengers to reroute their flights if their plans change. While some fare types, particularly those at the lower end, may incur change fees or fare differences, others, especially premium fares, often allow for changes without any additional charges. Delta’s website and mobile app provide tools for passengers to manage their own rebooking, although customer service is available for more complex itineraries or special requests.