If you want to cancel a flight that you have scheduled with United Airlines, you must be familiar with all of the requirements, terms, and conditions of the airline's cancellation policy. United's cancellation and refund policies are quite simple and open compared to those of other airlines. Before making any changes to a previously booked flight, they have specified rules to follow. In order to make their cancellation policies for both domestic and international flights more convenient for United Airlines customers, airlines implemented a few changes. On United Airlines, practically every form of airline ticket is subject to change fees. If you choose the vacation spot but your plans change, United Airlines allows you to cancel your trip up to 24 hours before the start of your itinerary. The United Airlines cancellation policy for 2022 is detailed below.