ringmaruf
Veteran
AirTran is killing US to ATL and Florida, but they haven't had any luck yet with the more business oriented routes. US has chased FL out of PHL-PIT, PIT-MDW, and PIT-LGA, and it appears that US is easily winning the battle on PHL-BOS. (Before anyone mentions that FL just added a PHL-BOS frequency, they did that because they didn't before offer a competitive number of frequencies--probably due to not having enough aircraft. They still don't really offer a competitive number of frequencies.) US has completely given up in ATL, with the RJs from PIT and PHL. (Although Delta seems to also be giving up in these markets, having also recently downsized their aircraft.)