Piedmont Airlines began commercial flights to Wilmington in February 1948, and used Wilmington as one of its initial crew bases. Its first route was between Wilmington and Cincinnati, Ohio, with stops in Pinehurst, Charlotte, Asheville, the Tri-Cities and Lexington. Piedmont was the airport's only scheduled carrier as of 1975, with flights to Atlanta, Fayetteville, Jacksonville, Kinston, Myrtle Beach, New Bern, Norfolk and Washington-National, using YS-11, FH-227 and Boeing 737 aircraft. Piedmont was acquired by USAir in 1989; USAir was renamed US Airways in 2005, and merged with American Airlines in 2015.