If you are aggrieved by Associate Involuntary Modification, you will revise your flight date/time up to fourteen days from your original travel date at no further cost. We have a tendency to understand plan modification, thus we do not charge any fees to change your Southwest reservation. To change a flight, simply grab any fare difference. Southwest Airlines may allow you to change your flight in either direction for up to fourteen days, which may be a longer discount amount than you see for other reasons. The Southwest change flight policy allows you to switch the most popular price tag of your time or business at any time up to ten minutes prior to departure. As per the policy of Southwest Airlines, passengers will make changes to their reservations on the consecutive day of departure of the flight.