Not seasonally adjusted, domestic carriers only
The Air Travel Price Index (ATPI) is a measure of the change over time in the prices paid by air travelers, based on actual fares paid by travelers, not published fares.
1995 Q1 = 100
NOTES: The Bureau of Transportation Statistics computes the Air Travel Price Index values using the Fisher Index formula. U.S. origin only measures change in the cost of itineraries originating in the United States, whether the destinations are domestic or international. Foreign origin only measures change in the cost of itineraries with a foreign origin and a U.S. destination. All origins combines the U.S.- and foreign-origin itineraries.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Air Travel Price Index, available at http://www.bts.gov/ as of November 2008.