Washington Dulles International Airport is a United hub about 26 miles west of the capital, and its main terminal is one of the most admired buildings in aviation: Eero Saarinen's 1962 design, a concrete roof slung between outward-leaning columns like a suspended hammock. The current schedule feed lists 190 airports in 51 countries connected to Dulles.
Dulles is also the last major airport still using mobile lounges — the wide, high-riding buses that dock directly against aircraft doors, designed in the era when planes were expected to park far from the terminal.
The most frequently served routes for Washington Dulles International Airport connect to Atlanta (ATL), Detroit (DTW) and Orlando (MCO).
The longest connected route for Washington Dulles International Airport reaches Cape Town (CPT). This non-stop flight covers a distance of 7,931 miles (12,764 km).