Cheap flights from Washington to London
3,667 mi · 45m average nonstop
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Quick answer: Washington to London at a glance
Cheap flights from Washington (IAD) to London (LHR) cover 3,667 miles (5,900 km) in about 45m nonstop, with 8 airlines flying direct — a long-haul international route. Search Kayak for today's cheapest live fare. Route difficulty 6/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from Washington to London covers 3,667 miles (5,900 km) in approximately 0 hour 45 minutes. 8 airlines fly this route directly, making it the 2nd most competitive of 126 routes from Washington. This is a long-haul international route requiring advance planning for connections and layovers.
Nonstop distance 3,667 miles. Direct carriers include AA, AY, BA, DL, IB, LH, UA and VS.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
8 airlines fly Washington → London. All are direct routes.
| Airline | Route type |
|---|---|
| AA | Direct |
| AY | Direct |
| BA | Direct |
| DL | Direct |
| IB | Direct |
| LH | Direct |
| UA | Direct |
| VS | Direct |
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Washington to London — quick answers
How far is Washington from London by plane?
The nonstop flight distance from Washington (IAD) to London (LHR) is 3,667 miles (5,900 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from Washington to London?
The average nonstop flight time from IAD to LHR is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from Washington to London?
8 airlines serve this route nonstop: AA, AY, BA, DL, IB, LH, UA, VS. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.