Table 7: Domestic Scheduled Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Year-to-Date,, ,May-07,May-08,Change %,2007,2008,Change % Passengers (in millions),59.3,57.9,-2.3,273.7,272.0,-0.6 Flights (in thousands),844.0,814.6,-3.5,"4,012.8","3,935.7",-1.9 Revenue Passenger Miles(in billions) ,51.0,50.2,-1.6,237.4,237.6,0.1 Available Seat-Miles(in billions),62.8,61.7,-1.7,302.2,302.3,0.0 Load Factor*,81.3,81.3,0.0,78.6,78.6,0.0 Flight Stage Length**,612.0,623.5,1.9,616.1,628.9,2.1 Passenger Trip Length***,860.8,866.6,0.7,867.4,873.5,0.7 "Source: Bureau of Transportation Statistics, T-100 Domestic 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.,,,,,, ,,,,,,