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