Table 1: Scheduled System (Domestic and International) Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Year-to-Date,, ,Apr-07,Apr-08,Change %,2007,2008,Change % Passengers (in millions),64.9,63.1,-2.8,243.3,244.2,0.4 Flights (in thousands),881.9,867.4,-1.7,3452.3,3406.1,-1.3 Revenue Passenger Miles(in billions) ,68.8,67.9,-1.4,259.1,264.3,2.0 Available Seat-Miles(in billions),85.2,85.6,0.5,332.9,340.0,2.1 Load Factor*,80.8,79.3,-1.5,77.8,77.7,-0.1 Flight Stage Length**,702.5,716.5,2.0,701.6,722.4,3.0 Passenger Trip Length***,1060.5,1076.3,1.5,1065.1,1082.4,1.6 "Source: Bureau of Transportation Statistics, T-100 Market and Segment",,,,,, *Change in load factor points,,,,,, **The average non-stop distance flown per departure in miles,,,,,, *** The average distance flown per passenger in miles,,,,,, Note: Percent changes based on numbers prior to rounding.,,,,,, ,,,,,,