I don't think I've ever created an Airtran frequent flyer account, or even helped a client use their points. Airtran operates a very simple program for which I did a program score card last year.
I think the most unique thing about the program is the companion pass, which allows free companion flights for a year. The program is adjustable and you can even change the companion once a quarter. Not only that, the companion can also upgrade using 4 credits, which is pretty flexible.
With the 25% discount, credits cost 1,125 Amex Membership Rewards points each. So the companion pass costs 100 credits or 112,500 Amex points. Considering you can get unlimited flights for a YEAR, this could be an incredible value for people who frequently fly Airtran.
Overall, Airtran's program is user-friendly, they allow simple upgrades, and since they are joining with Southwest within the next year or two, at some point these credits will merge with your Southwest account. The details of that deal are TBD, but if you have a lot of Amex points and like to travel on Airtran, this promo may make sense for you.
"Free** Companion Travel: A companion account must be established by redemption of a Companion Pass award using the sponsor's A+ Rewards credits. The selected companion must have an A+ Rewards account; if they do not have one, an account will be established for them. The sponsor may change their companion once each quarter by contacting the A+ Rewards Desk at 1-888-3-A-PLUS-8 (1-888-327-5878). Sponsor and companion travel may be booked separately; however, all companion travel must be made with the sponsor on the same flights. All companion travel bookings must be made by contacting the A+ Rewards Desk. Companions that wish to receive a one-way Business Class upgrade must redeem four A+ Rewards credits from their sponsor or may pay for an upgrade beginning midnight the day prior to the departure date."
