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Washington (IAD) to London (LHR) flights
Nonstop from Washington Dulles International to London Heathrow: distance, flying time, which airlines fly it and how often.
Distance
5,902km
3,667 mi, great circle
Flying time
7h 42m
typical, gate to gate
Flights a day
5.6
average, November 2026
Airlines
3
passenger airlines
Airlines flying IAD to LHR
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 LHR fares by month.
Both directions
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Frequently asked questions
How long is the flight from Washington to London?
About 7h 42m gate to gate for the 5,902 km (3,667 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 LHR?
British Airways, United Airlines and Virgin Atlantic, with about 5.6 flights a day between them in our data (AeroDataBox, November 2026).