How long does the flight from London to Washington take?

Flight time from London (LHR) to Washington (IAD) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. Check the exact duration in the search results above, where we show block time per itinerary along with stop count.

Which airlines fly from London to Washington?

Airline availability for LHR to IAD changes by season and sometimes week to week as carriers adjust capacity. Our search above pulls live schedules and returns the airlines currently selling this route, both direct and connecting. Codeshare and interline itineraries are included, so you may see results operated by one carrier but sold by another.

Are there direct flights from London to Washington?

Direct (nonstop) availability on LHR to IAD varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons. Use our search above with flexible dates to see which days actually have nonstop options.

What is the cheapest month to fly from London to Washington?

Prices on LHR to IAD shift with seasonality, school holidays, and major events at both ends. Our 12-month price calendar below the search results shows the lowest fare found per departure date, which makes it easy to spot the cheapest weeks at a glance. Flexibility of a few days around your target date often unlocks significantly lower fares.

London to Washington flights

Direct and connecting flights from London (LHR) to Washington (IAD). Compare airlines, aircraft, and fares.

Distance: 5,902 km (3,667 mi)
Flight time: ~7h 16m
Airlines: 3
Aircraft types: 4

Airlines flying LHR → IAD

Airline	Aircraft types	Observations
British Airways	2	2
United Airlines	1	1
Virgin Atlantic Airways	1	1

Aircraft on this route

Boeing 777 — 1 operator
Boeing 767 — 1 operator
Boeing 777 — 1 operator
Boeing 787 — 1 operator

Airport details

Departure: London Heathrow Airport (LHR)

City: London
Country: United Kingdom
IATA / ICAO: LHR / EGLL

Arrival: Washington Dulles International Airport (IAD)

City: Washington
Country: United States
IATA / ICAO: IAD / KIAD

Operating airlines

British Airways (BA)
United Airlines (UA)
Virgin Atlantic (VS)

Distance: 5916 km. Duration: 505 minutes.

Other routes from London

Other routes to Washington

Frequently asked questions

How many airlines fly LHR to IAD?

3 airlines operate the LHR to IAD route in our 90-day observed dataset.

What aircraft fly the LHR-IAD route?

The most commonly observed aircraft on LHR to IAD include: Boeing 777, Boeing 767, Boeing 777.

How long is the London to Washington flight?

The estimated flight time from London (LHR) to Washington (IAD) is approximately 7h 16m, based on a cruise speed of 850 km/h.

What's the distance from London to Washington?

The great-circle distance from London (LHR) to Washington (IAD) is approximately 5,902 km (3,667 miles).

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