Yes! all you need to do is go to southwest.com and click the change reservation link. Then you would enter your information and select the new date. All you will be required to pay is any difference in fare. If the new flight is cheaper then you would have a credit for future use and pay NO change fees. you can also call customer service at 800-435-9792 and they would be glad to assist with making the change as well Happy Travels! Blake
... View more