If you're wondering how the US carriers did on unit revenue performance basis here's quick rundown of the four majors and two large LCCs. I didn't list Southwest, since there was a lot of AirTran noise in its quaterly results.
For your reference or a quick refresher -- Foundations of Airline Finance authored by Bijan Vasigh, Ken Fliming and Liam Mackay lists definitions of PRASM and RASM -- yes, a bit dry I realize for a Friday afternoon!
PRASM -- the average passenger revenue received per unit of output -- calculated by taking total passenger revenues and dividing by ASMs.
RASM -- Average total revenue per unit of output -- calculated by taking total revenue and dividing by ASMs.
Here are some PRASM numbers from US carriers from Q3
US Airways 10.4%
American, United-Continental and US Airways are all mainline numbers