/site-files/aviationweek.com/files/uploads/2014/09/avd_09_10_2014_cht2.pdf Top 10 U.S. Airlines, Ranked by January-May 2014 International Scheduled Enplanements Passenger numbers in thousands (000) Jan-May 2014 Rank Carrier Jan-May 2014 Enplaned Passengers Jan-May 2013 Rank Jan-May 2013 Enplaned Passengers Pct. Change 2013-2014 1 United (UA) 10,354.00 1 10,046.30 3.1 2 Delta (DL) 8,924.10 3 8,314.20 7.3