Revenue Passenger-Miles (monthly data, not seasonally adjusted)
Load Factor (monthly data, not seasonally adjusted)
Airline revenue passenger-miles (RPM) are a measure of intensity of use of the air travel system. In 2010, the 718 million passengers traveling on U.S.-based airlines collectively traveled 792 billion miles. On average, a passenger traveling domestically traveled 878 miles. An international passenger traveling on a U.S.-based airline traveled an average of 2,714 miles to the first destination outside the U.S.
In 2010, capacity utilization for domestic carriers was 82.2 percent of available seat-miles (ASM) occupied by passengers for domestic flights, and 81.7 percent of ASM occupied for international flights. Foreign airlines that originated flights in the U.S. had a load factor of 81.5 percent.
|U.S. Airline Revenue Passenger-Miles and Load Factor||Sep-10||Sep-11|
|Scheduled System (Domestic and International) U.S. Airlines Total RPM (billions)||64.11||65.07|
|Percent change from same month previous year||6.7||1.5|
|Scheduled System (Domestic and International) U.S. Airlines' Load Factor (percent)||81.03||81.93|
|Difference from same month previous year*||1.3||0.9|
* Current month minus same month previous year. This is generally used in the case of bound numbers, such as proportions that cannot exceed 100%.
NOTE: The current value is compared to the value from the same period in the previous year to account for seasonality.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, available at http://www.bts.gov/programs/airline_information/ as of December 2011.