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Table 20. Domestic Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted, December 2017

Domestic ASMs (unadjusted) in billions (000,000,000), Scheduled service only

Dataset Table:

2014 2015 2016 2017
January 54.0 57.0 59.7 63.1
February 49.4 51.3 57.5 57.4
March 60.7 62.9 66.5 68.7
April 58.0 61.1 63.8 66.1
May 59.7 63.4 66.5 68.8
June 61.8 65.2 68.8 71.7
July 64.8 68.6 71.5 74.8
August 62.9 66.7 70.0 73.2
September 56.5 59.5 62.5 63.1
October 59.6 62.6 64.8 68.0
November 56.9 60.5 62.9 65.1
December 60.3 63.2 65.7 68.2
Yr. Total 704.6 742.0 780.2 808.2

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