Table 13: International Scheduled Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Year-to-Date,, ,Apr-06,Apr-07,Change %,2006,2007,Change % Passengers (in millions),7.3,7.5,2.0,27.6,28.8,4.5 Flights (in thousands) ,71.6,72.3,0.9,277.5,282.9,1.9 Revenue Passenger-Miles(in billions) ,18.3,19.0,3.9,68.5,72.7,6.0 Available Seat-Miles(in billions),23.1,24.1,4.3,88.6,93.4,5.4 Load Factor*,79.4,79.2,-0.2,77.4,77.8,0.4 Flight Stage Length**,"1,609.7","1,656.5",2.9,"1,596.3","1,642.5",2.9 Passenger Trip Length***,"2,495.2","2,543.4",1.9,"2,483.9","2,520.7",1.5 "Source: Bureau of Transportation Statistics, T-100 International 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.,,,,,, ,,,,,,