Washington Dulles International (IAD) is a large airport in United States. You can fly to 135 destinations with 41 airlines in scheduled passenger traffic.
The route with the most departures is the route to Atlanta (ATL) with an average of 78 flights from Washington Dulles International every week which is 3% of all weekly departures. The top international destinations from here are Toronto (YYZ) and London (LHR). The two longest flights are Washington (IAD) to Hong Kong (HKG) that takes around 15 hours and 55 minutes and Washington (IAD) to Seoul (ICN) with a flight time of 14 hours and 30 minutes.
United Airlines is the largest airline here by counting the number of departures. With around 1669 scheduled take-offs every week, that's about 15 times as many as the second biggest airline, Delta Air Lines. Airbus A380 is the largest aircraft operating here among other big planes such as the Boeing 747 and the Boeing 777. The aircraft types with most scheduled flights are the Bombardier CRJ / Challenger and the Boeing 737.