United Express

United Express is a name under which nine regional carriers operate for United Airlines. Those carriers are Air Wisconsin, Atlantic Coast Airlines, Chautauqua Airlines, Great Lakes Aviation, Mesa Airlines, Republic Airlines, Shuttle America, SkyWest, and Trans States Airlines.

Atlantic Coast Airlines, or ACA for short, is planning to end operations as a United Express carrier and establish itself in Washington Dulles International Airport as low-cost carrier Independence Airlines.