Southwest Airlines adopted new No Show ticket refund rules on September 13, 2013. Passengers are now required to cancel their nonrefundable tickets at least 10 minutes before their scheduled departure times to be eligible for refunds. The remaining funds can then be used for a new flight.
The modifications to flight itineraries can be made free of cost – but there may be an additional charge for any increase in the cost of the revised flights.
Previously, passengers could get a refund for their unused tickets even after the departure of their scheduled flight.
The new policy allows the airline to resell unused seats belonging to the passengers who will not be taking their flights.
Southwest is the only major US airline to allow changes to nonrefundable tickets without penalty. Most other US carriers charge a fee of at least $200 for any ticket changes.