I learned something new about SW travel funds today. We booked a trip to Vegas last August 2 for November, and rebooked two days later for a cheaper fare. So my wife and I each had $72 to be used before 8/2/12. In March we booked flights to Chicago for about $185, so we used $72 in travel funds, then had to pay $113 for each ticket. Last month we changed our mind and decided to take a trip with our kids. We cancelled our flights knowing that we would lose our $72 credit from last year's trip. So this morning I went to book our November trip to Vegas and tried to apply the $113 credit and it would not let me do it. I called SW and they told me that since I used travel funds to pay for the Chicago trip and then cancelled it, the entire $185 would expire on August 2. I said that it seems to me that $72 should expire on 8/2 and that the $113 should expire in March 2013. Apparently that is not how it works. The people that I spoke with we're very nice and they worked with me to give me refund of that $113. They also offered to extend my travel credit 6 months, but I would not have been able to book today and use those funds as they cannot extend until after the credits expire. So keep this in mind in the future if you are trying to use travel funds like this. And also remember that it pays to be nice to the people trying to help you!