In 2013, Reagan National Airport handled 20,415,085 passengers, which was a new record.[48] From April 2014 to March 2015, the airport handled 21,195,775 passengers, which is slightly higher than the aforementioned record.[49] American Airlines, following its merger with US Airways, has the largest share of traffic at the airport, accounting for 50.4% of the market share as of June 2015. Delta Air Lines, the second largest, accounts for 14.0%, with Southwest in third at 13.0%.[49]