Great-circle route LHR ↔ IAD. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| LHR → IAD London to Washington |
42/wk | Daily | British Airways, United Airlines, Virgin Atlantic Airways |
| IAD → LHR Washington to London |
42/wk | Daily | British Airways, United Airlines, Virgin Atlantic Airways |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 826,348 passengers on 3,870 flights between LHR and IAD — about 2,265 a day — filling 75% of the 1,094,924 seats flown. British Airways Plc carried the most passengers (50%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
3 airlines fly the LHR–IAD nonstop, including British Airways, United Airlines, Virgin Atlantic Airways.
Recent scheduled departures on this route have used the Boeing 777-200 / 200ER Passenger, Boeing 777-300ER Passenger, Airbus A330-900 NEO, Boeing 777 and 2 other types.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance between London Heathrow Airport and Washington Dulles International Airport is 3,667 miles, or 5,901 kilometres.
| Great-circle distance | 3,667 mi |
| Kilometres | 5,901 km |
| Nautical miles | 3,187 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly the route nonstop, with about 84 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 7h 37m in the air. That is a great-circle estimate from the 3,667-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 42 a week from London to Washington and 42 a week from Washington to London, from our most recent schedule sample.
British Airways, United Airlines, Virgin Atlantic Airways.
In 2025, airlines reported 826,348 passengers on 3,870 scheduled flights between LHR and IAD — about 2,265 a day — filling 75% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 777-200 / 200ER Passenger, Boeing 777-300ER Passenger, Airbus A330-900 NEO, Boeing 777. Assignments change by season and by time of day.
