But creation of a north -- south hub at Dulles did not work for United , and heavy competition in this market led to a quick exit .
In the early 1990s , United Airlines began flights between Manchester and Washington Dulles International Airport near Washington , D.C.
Creation of a north -- south hub at Washington Dulles International Airport did not work for United Airlines , and heavy competition in this market led to a quick exit .
In the early 1990s , United Airlines began flights between Manchester and Washington Dulles International Airport near Washington , D.C.