Just to clarify, (and by way of history), I think when I first started booking with SWA (which was during their 35th anniversary year in 2001 - I remember because they offered $35 OW fares to MCO) the change option was not available. You had to cancel and rebook. It was in days of slower computers and very nervewracking, because I would always worry that between cancelling and rebooking the availability or the fare would change. I could have booked at the lower fare, then cancelled the more expensive, and used the credit from the cancelled flight on a future ticket, but we weren't going as frequently then and I didn't have the cash flow. After all a credit, is still money out of your pocket. I remember later reading on these boards that you could go in and change air itinerary to get the lower flight and I was thrilled. I probably did this on almost every ticket I bought, because I would buy when they first opened up and then watch fares and adjust to better pricing as available. I would always book RT, and could change one leg or both legs. Last fall however, in one particular instance, it would not let me make the change to only one leg. I think I booked a promotional fare down and an IOW back. When a lower internet OW came out, it would not let me change just the IOW portion, it said I had to change both legs. Unfortunately, at that time, all the promotional fares were gone, and the only thing available was a restricted or special fare that was more expensive, so the savings I would have gotten changing the IOW was completely offset by by the increase from the promotional fare. that why, from now on, I try to book OW. Interestingly enough, after a conversation with SWA, I booked the same flight at the lower fare on a new itinerary. Then, after we arrived, using the promotional fare to get to mco, I cancelled the back 1/2 of the ticket where the price was $99 and flew home on my new itineray - where the price was $49. So I ended up with TTF to use on a future flight and did end "getting the cheaper fare"