Delta, an olded company, with older planes usually, old culture, no wifi and if they did they'd probably charge for it and it wouldn't be a reasonable price, most likely.
Airtran, i'm pretty sure it is newer than delta, definitely wasn't a key player 30 years ago like delta and guess what they've got wifi included in the price of my ticket. And newer planes.
Airtran has to do things better than delta if they want to gain market share, capitslism at work.
Mike D. sent from Android phone