Bureau of Transportation Statistics


Table 19. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted, September 2017, December 2017 [1]

Systemwide (Domestic + International) ASMs (unadjusted) in billions (000,000,000), Scheduled service only
2014201520162017
January79.883.486.390.0
February72.574.582.081.4
March88.290.394.296.8
April84.888.691.694.8
May88.592.896.499.5
June92.095.799.9103.7
July96.5101.0104.4108.6
August94.098.6101.8105.8
September83.587.390.491.4
October86.189.592.296.4
November81.784.986.990.3
December86.890.393.096.2
Yr. Total1,034.41,076.91,119.11,154.9
Export Table Data [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


Source URL: https://www.bts.gov/content/table-19-systemwide-available-seat-miles-asms-us-airlines-unadjusted-september-2017-december

Links
[1] https://www.bts.gov/content/table-19-systemwide-available-seat-miles-asms-us-airlines-unadjusted-september-2017-december
[2] https://www.bts.gov/tablefield/export/node/218371/field_table_data/und/0