Bonjour, comment ça va! With my experience I can confirm that Southwest is best to travel with Southwest Airlines Cancellation Policy is hustle free and easy on the pocket. Have you booked a flight with Southwest Airlines and wish to cancel it? To know how to cancel a Southwest flight If you have booked your Southwest Airlines Tickets by using the online portal, then you can cancel your flight tickets online by visiting the official website of Southwest Airlines. You can also contact the number given on the website to assist you with your queries.