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Enplaned passengers on domestic flights - airlines in U.S. 2011-2017

Leading airlines in the United States from 2011 to 2017, ranked by domestic passenger enplanements (in millions)

The data shows a ranking of the leading airlines in the U.S. between 2011 and 2017, ranked by domestic passenger enplanements. In 2017, Southwest Airlines was at the top of the list, with over 153.8 million passenger enplanements.

2011	39.53	65.23	92.71	110.59
2012	67.53	65.01	95.44	112.23
2013	65.11	65.05	98.37	115.32
2014	64.67	66.38	106.22	126.69
2015	69.18	93.28	114.9	142.41
2016	73.78	116.63	119	148.82
2017	80.43	116.47	120.73	153.81

Enplaned passengers on domestic flights - airlines in U.S. 2011-2017

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