Southwest Airlines has a Southwest airlines change flight policy that allows customers to change their flights for free, subject to certain conditions. Here are the details:

• If you have purchased a refundable ticket, you can change your flight for free without any penalty.
• If you have purchased a non-refundable ticket, you can still change your flight for free if you do so within 24 hours of booking your flight.
• If you need to change your flight after the 24-hour window has passed, you can still do so, but you may be required to pay a fare difference if the new flight is more expensive than the original one.
• If you have purchased a Wanna Get Away fare, you may be required to pay a fare difference and a change fee to change your flight.

Overall, Southwest Airlines has one of the most customer-friendly change policies in the airline industry, allowing passengers to make changes without incurring significant fees or penalties. To know more about it read the full Blog.