Table 6. Airline Domestic Unit Revenue (Cents Per Mile),,,,,,, Network Carriers ,,,,,,, Ranked by 1st Quarter 2004 Domestic Unit Revenue,,,,,,, (Domestic Operating Revenue Per Available Seat Mile),,,,,,, Rank,Group,1st Quarter 2003,2nd Quarter 2003,3rd Quarter 2003,4th Quarter 2003,1st Quarter 2004,1st Quarter Operating Revenue $(Millions) 1,US Airways,13.80,15.13,14.52,15.19,14.44,"1,428.5" 2,Northwest,10.47,11.31,11.41,11.65,12.68,"1,769.9" 3,Delta,11.92,13.02,12.57,12.46,12.31,"2,940.5" 4,United,9.16,9.80,11.19,10.73,10.84,"2,422.4" 5,American,10.05,10.58,10.35,10.44,10.29,"3,033.9" 6,Continental,9.92,10.65,9.95,10.25,10.27,"1,275.8" 7,Alaska,9.40,9.95,10.45,9.95,9.75,441.1 ,Group Total,10.60,11.38,11.39,11.43,11.43,"13,312.0" Source: Form 41; Schedule P1.2. T100; T2 Data,,,,,,,