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Table 7. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted, December 2017

Systemwide (Domestic + International) ASMs (seasonally-adjusted) in billions (000,000,000)

Dataset Table:

2014 2015 2016 2017
January 84.3 88.3 91.4 95.0
February 85.1 87.6 92.1 94.9
March 86.4 88.7 92.6 95.2
April 85.6 89.4 92.5 95.7
May 85.6 89.7 93.1 96.0
June 86.2 89.5 93.2 96.8
July 86.3 90.3 93.3 97.3
August 86.2 90.6 93.5 97.3
September 86.6 90.6 94.0 95.4
October 87.0 90.6 93.3 97.4
November 87.5 91.1 93.5 97.1
December 88.1 91.5 94.3 97.7

Notes:

Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

Source:

Bureau of Transportation Statistics, T-100 Segment