It's crucial to be informed of Southwest Airlines' cancellation policy if you intend to book flight tickets with them. This page will describe the procedures you must follow if you must cancel your flight, as well as the costs and penalties involved. Therefore, read on for all the information you require, whether you've changed your mind about taking the trip or something comes up that requires you to cancel. Due to a special cancellation fee policy, Southwest Airlines does not charge passengers when their flights are cancelled. This is in contrast to other significant airlines, where the cost varies from 200 USD and higher depending on which airline you're flying with and whether or not there was adequate time before your trip started.