Unexpected modifications to travel plans are not uncommon. You have undoubtedly experienced this if you are one of those people who travel frequently for either personal or professional reasons. There isn't much a passenger can do in these circumstances. And the only way to make it right is to cancel the flight.
Nevertheless, different airlines follow different protocols for this kind of process. But If you would like to cancel a ticket that you have purchased on Southwest Airlines, you need to be familiar with the terms of their cancellation policy or call their customer support at +1-