Table 1: Scheduled System (Domestic and International) Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Year-to-Date,, ,Apr-06,Apr-07,Change %,2006,2007,Change % Passengers (in millions),63.2,64.9,2.7,237.9,243.2,2.2 Flights (in thousands),866.0,877.2,1.3,"3,397.6","3,446.2",1.4 Revenue Passenger Miles(in billions) ,67.1,68.8,2.5,251.9,259.1,2.8 Available Seat-Miles(in billions),83.0,85.2,2.6,323.7,332.8,2.8 Load Factor*,80.9,80.8,-0.1,77.8,77.9,0.1 Flight Stage Length**,701.7,705.7,0.6,698.5,702.1,0.5 Passenger Trip Length***,"1,062.5","1,060.9",-0.2,"1,058.8","1,065.2",0.6 "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.,,,,,, ,,,,,,