I have flown SW several times and have also rebooked, canceled, and gotten and used credit, so I thought I knew how it worked. This time I'm stumped! I booked my SW flights online, promotional fares. We have decided we would like to extend our vaction by leaving for Orlando one day early. We want to keep the return flight we have booked. However, both of these are on the same ressie, and the return flight is no longer available at the price we paid. How can I rebook the departing flight without cancelling the return flight? Does anyone know? Thanks!