Originally Posted by
airplanegod
That's the issue, lol. AA and DL fly 767's domestically (not counting Hawaii). They also fly plenty of 757's domestically, something UA is getting rid of (minus the transcon JFK-LAX flights).
Both AA and DL are parking 757s and the rate of the retirements will start accelerating next year. They're replacing with slightly smaller aircraft - 737-900ERs and/or A321s, just like United.