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British Airways flights from London Heathrow Airport to Washington, D.C. (LHR - WAS)

LHR — WAS
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 Heathrow to Washington, D.C. in 2025

Find detailed information about British Airways flights from Heathrow to Washington, D.C.. Explore the options provided by British Airways to plan your journey from Heathrow to Washington, D.C.. Data last updated 16 September 2025.

One-way from

£397

Return from

£400

Popular in

July

Cheapest in

September

Average price (all airlines)

£486
British Airways
  • British Airways
  • 18/1
  • 2 total stops
  • 25h 47m total
  • London to Washington, D.C.
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British Airways
  • British Airways
  • 7/3-9/3
  • Nonstop
  • 15h 35m total
  • London to Washington, D.C.
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Highest demand for flights from London Heathrow to Washington, D.C.; 10% potential price increase.
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Best time to find cheap flights from London Heathrow to Washington, D.C.; 2% potential price drop.
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Average price for all London Heathrow to Washington, D.C. flights (one-way and round-trip).
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  • Can I get a flight from London Heathrow Airport to Washington, D.C. on British Airways for under £700?

    Cheapflights currently has 32 LHR-WAS flights for under £700. Flights to Washington, D.C. will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

  • How do most travelers feel about British Airways?

    When planning your LHR-WAS trip, keep in mind that British Airways is typically rated 7.9/10. This rating comes from 7,954 reviews by Cheapflights users who have traveled with British Airways.

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

Cheapest British Airways flights from Heathrow to Washington, D.C.
Explore the most affordable British Airways flight options available from Heathrow to Washington, D.C.. Find the lowest fares with prices last updated on 16 September 2025.

Mon 22/917:00LHR - IAD
Nonstop8h 10mBritish Airways
Mon 29/919:25IAD - LHR
Nonstop7h 20mBritish Airways
Deal found 14/9£400
Tue 23/914:30LHR - IAD
Nonstop8h 05mBritish Airways
Tue 30/917:50IAD - LHR
Nonstop7h 25mBritish Airways
Deal found 14/9£401
Mon 6/1017:00LHR - DCA
1 stop10h 57mBritish Airways
Fri 17/1017:30DCA - LHR
1 stop10h 35mBritish Airways
Deal found 13/9£404

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

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Washington, D.C.. Price data was last updated on 12 September 2025.

Booking with British Airways 12 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport 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 Heathrow Airport to Washington, D.C. with British Airways?

Currently, the most affordable month to book a British Airways flight from London Heathrow Airport to Washington, D.C. in September, with an average price of £411. Conversely, traveling with British Airways from London Heathrow Airport to Washington, D.C. in July will be the most expensive, with an average cost of £524. 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 Heathrow to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Heathrow 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 Heathrow 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 16 September 2025.
Finnair flights from London Heathrow to Washington, D.C.
Virgin Atlantic flights from London Heathrow 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 16 September 2025.
British Airways
6.6
Okay
7,361 reviews
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Overview

Entertainment

6.4

Boarding

6.9

Crew

7.6

Food

6.3

Comfort

6.7

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