Domestic Revenue Load Factors

Domestic Revenue Load Factors

Domestic Aircraft Revenue Load Factors (monthly data, not seasonally adjusted)

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Aircraft load factors are used to measure aircraft in-flight capacity utilization.

Domestic Revenue Load Factors (percent) Sep-03 Sep-04
Passenger revenue load factors 67.61 70.73
Change from same month previous year 4.29 3.12
Overall aircraft revenue load factors 52.75 56.82
Change from same month previous year 2.82 4.06
Freight revenue load factors 31.59 36.37
Change from same month previous year 2.45 4.77

NOTES: The current value is compared to the value from the same period in the previous year to account for seasonality.

Load factor related to the potential capacity of a system relative to its actual performance. In order to combine passenger and freight to calculate overall aircraft load factors, a common metric is needed: ton-miles. Thus, it is assumed that a passenger plus baggage weighs 200 pounds. The data include both transborder and foreign flights by large U.S. carriers, but do not include any flights by foreign carriers.

The dramatic changes in the September 2001 data reflect the impact of the terrorist attacks on Sept. 11, 2001, on aviation, including several days in which commercial air operations were suspended.

The data reported here excludes small-certificated and commuter carriers that began reporting T100 data in 2002 for comparability with previous issues.

Refer to the Special Notes at for specific concerns regarding the preliminary nature of the most recent data for latest issue of Air Carrier Traffic Statistics Monthly.

SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Air Carrier Traffic Statistics Monthly, January 2005.