The future is somewhat uncertain, which can cause changes to our vacation plans. Southwest Airlines acknowledges this and gives you the option to reschedule your travel. Southwest Airlines doesn't charge any fees, unlike the other U.S. airlines that impose high change costs of between USD 150 - 200. The flight change policy of Southwest Airlines is quite accommodating. Based on the regulations and the new policy, you may simply modify the flight. Therefore, click here to view What is Southwest Airlines Flight Change Policy.