Follow these steps for Southwest Cancellation Policy:
Visit the website of Southwest Airlines.
Click on “Flight | Hotel | Car” and then on “Manage Reservations.”
Enter your confirmation number as well as your full name.
Find the flight you want to cancel and select “Cancel Reservation.”
Examine the cancellation information and confirm.
If you are qualified for a refund, the money will be credited to your Southwest account to be used in the future.
Contact Southwest customer care if you want a refund to your original payment method.
Please keep in mind that the cancellation policy and costs may differ according on the fare class, so read the details of your booking before cancelling.