One of the distinctive airlines in the aviation sector is Southwest Airlines. We are referring to it as unique because of Southwest's policy about flight changes. No other major airline offers the same level of flexibility as Southwest Airlines' Southwest Flight Change policy. Most airlines impose a steep penalty for altering a ticket after purchase. In terms of not imposing change costs on domestic and international flights, Southwest Airlines has established itself as the industry leader and an example for other airlines. If you need to modify the date of your flight, you can refer to our reference on Southwest Airlines' date change policy.