Washington (IAD) to Buffalo (BUF) flights
Nonstop from Washington Dulles International to Buffalo Niagara International Airport: distance, flying time, which airlines fly it and how often.
Distance
284 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying IAD to BUF
Also in the data (cargo, charter or a foreign airline on a domestic route): Libyan Airlines, Mesa Airlines, NetJets Aviation.
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare IAD to BUF fares by month.
Both directions
Frequently asked questions
How long is the flight from Washington to Buffalo?
About 1h 16m gate to gate for the 457 km (284 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from IAD to BUF?
United Airlines, with about 5 flights a day between them in our data (AeroDataBox, November 2026).