Table 13. International Scheduled Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Annual,, ,Dec-06,Dec-07,Change %,2006,2007,Change % Passengers (in millions),7.2,7.5,4.9,86.3,90.4,4.7 Flights (in thousands) ,71.6,72.1,0.8,849.8,856.8,0.8 Revenue Passenger-Miles(in billions) ,18.3,19.7,7.5,222.9,237.1,6.4 Available Seat-Miles(in billions),23.5,25.1,6.9,280.6,296.3,5.6 Load Factor*,78.0,78.5,0.5,79.4,80.0,0.6 Flight Stage Length**,"1,632.8","1,724.6",5.6,"1,640.3","1,714.2",4.5 Passenger Trip Length***,"2,547.7","2,610.9",2.5,"2,582.4","2,623.1",1.6 "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: Percentage changes based on numbers prior to rounding.,,,,,, ,,,,,,