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British Airways flights from London to Washington, D.C. (LON - WAS)

LON — WAS
4 May — 11 May1
1 adult

Cheapflights users flying from London to Washington, D.C. on British Airways typically fly into Washington, D.C. Dulles Intl and depart from London Heathrow. Select your dates above for pricing.

British Airways flights from London to Washington, D.C. in 2025

Find detailed information about British Airways flights from London to Washington, D.C.. Explore the options provided by British Airways to plan your journey from London to Washington, D.C.. Data last updated 29 April 2025.

One-way from

£570

Return from

£520

Popular in

July

Cheapest in

February

Average price (all airlines)

£529
British Airways
  • British Airways
  • 8/5
  • Nonstop
  • 8h 00m total
  • London to Washington, D.C.
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British Airways
  • British Airways
  • 7/9-28/9
  • 1 total stop
  • 18h 25m total
  • London to Washington, D.C.
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Highest demand for flights from London to Washington, D.C.; 11% potential price increase.
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Best time to find cheap flights from London to Washington, D.C.; 1% potential price drop.
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Average price for all London to Washington, D.C. flights (one-way and round-trip).
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  • Does British Airways service alternative airports for LON-WAS?

    When traveling from London to Washington, D.C., there are typically alternate options for departure airport, arrival airport, or both. When arriving in Washington, D.C., most people land at Washington, D.C. Dulles Intl, but that is not the only available airport that British Airways flies to. Many people choose to land at Baltimore/Washington depending on where there are traveling to in the area. If you are looking for a closer or different airport to depart from in London, British Airways also flies out of London Gatwick when traveling to Washington, D.C..

  • How do most travelers feel about British Airways?

    The average rating from 101 British Airways reviews by Cheapflights users is 6.9 (out of a maximum rating of 10). If you are considering flying LON-WAS with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Washington, D.C. with British Airways.

Find British Airways flight deals from London to Washington, D.C.

Cheapest British Airways flights from London to Washington, D.C.
Explore the most affordable British Airways flight options available from London to Washington, D.C.. Find the lowest fares with prices last updated on 29 April 2025.

Thu 8/507:40LHR - IAD
1 stop13h 10mBritish Airways
Wed 14/522:40IAD - LHR
Nonstop7h 25mBritish Airways
Deal found 29/4£520
Fri 9/516:35LHR - BWI
Nonstop8h 00mBritish Airways
Mon 12/521:20BWI - LHR
Nonstop7h 15mBritish Airways
Deal found 28/4£556
Tue 13/509:05LCY - IAD
1 stop11h 45mBritish Airways
Sun 18/517:20IAD - LCY
1 stop12h 00mBritish Airways
Deal found 29/4£558

Travel insights for British Airways flights from London to Washington, D.C.

Get recent, data-driven insights about British Airways flights from London to Washington, D.C. including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to Washington, D.C. with British Airways?

Use this chart to determine the optimal time to book a return flight from London to Washington, D.C.. Price data was last updated on 25 April 2025.

Booking with British Airways 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Washington, D.C. with British Airways?

Currently, the most affordable month to book a British Airways flight from London to Washington, D.C. in May, with an average price of £427. Conversely, traveling with British Airways from London to Washington, D.C. in June will be the most expensive, with an average cost of £538. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Best time to book a flight from London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Browse thousands of different options on Cheapflights for your next trip

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Fly from London to Washington, D.C. on another airline

Consider alternative airlines that service the Washington, D.C. area. Flight routes are based on user searches made on Cheapflights and were last updated on 29 April 2025.
Virgin Atlantic flights from London to Washington, D.C.
Finnair flights from London to Washington, D.C.

See what others are saying about British Airways

Read reviews and see what other travellers are saying about their experiences with British Airways. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing British Airways for your next flight. Reviews last updated 29 April 2025.
British Airways
6.6
Okay
6,834 reviews
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Overview

Crew

7.6

Boarding

6.8

Food

6.3

Entertainment

6.4

Comfort

6.7

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