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

LON — WAS
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

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

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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 3 July 2026.

Thu 6/814:00
LHR
-
IAD
Nonstop8h 25m
British Airways
Sun 16/819:15
IAD
-
LHR
Nonstop7h 30m
British Airways
Deal found 30/6£462
Thu 27/811:30
LHR
-
IAD
1 stop12h 25m
British Airways
Sat 12/921:30
IAD
-
LHR
Nonstop7h 20m
British Airways
Deal found 28/6£475
Tue 25/811:30
LHR
-
IAD
1 stop12h 20m
British Airways
Thu 10/919:15
IAD
-
LHR
Nonstop7h 30m
British Airways
Deal found 30/6£484

  • How do most travelers feel about British Airways?

    The average rating from 8,091 British Airways reviews by Cheapflights users is 6.7 (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.

  • 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..

  • Can I get a flight from London to Washington, D.C. on British Airways for under £600?

    Cheapflights users have found 50 British Airways flights for under £600 on the LON-WAS route. Prices on flights to Washington, D.C. from London can vary based on many factors including dates. To look at price based on your preferred dates, click here.

British Airways flights from London to Washington, D.C. in 2026

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 3 July 2026.

One-way from

£328

Return from

£462

Popular in

June

Cheapest in

February

Average price (all airlines)

£577
British Airways
  • British Airways
  • 27/8
  • 1 total stop
  • 13h 05m total
  • London to Washington, D.C.
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British Airways
  • British Airways
  • 6/8-16/8
  • Nonstop
  • 15h 55m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights from London to Washington, D.C.; 9% 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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Which month is the cheapest to fly Economy class from London to Washington, D.C.?

For Economy class flights, the cheapest month to fly this route is September. The most expensive months are August and December.

Weekly British Airways flight availability from London to Washington, D.C.

The most British Airways flights from LON to WAS are scheduled on a Monday (3 on average). You will have fewer British Airways flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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).

When is the best time to book a flight to Washington, D.C. with British Airways?

The best time to book a flight to Washington, D.C. with British Airways is 70 days before departure. On average, fares are higher if you book on the same day as departure.

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 3 July 2026.
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 3 July 2026.
British Airways
6.7
Okay
8,093 reviews
Check prices
Overview

Crew

7.7

Comfort

6.8

Entertainment

6.4

Food

6.4

Boarding

6.9

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