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

LHR — WAS
20 Oct — 27 Oct1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

Cheapest British Airways flights from Heathrow to Washington, D.C.

Tue 20/1009:50 -
1 stop10h 55m
Sat 31/1018:50 -
1 stop11h 45m
Deal found 16/9£423
Fri 2/1015:00 -
1 stop11h 59m
Sun 4/1018:23 -
1 stop9h 47m
Deal found 18/9£434
Thu 1/1015:00 -
1 stop11h 59m
Thu 8/1006:00 -
1 stop10h 40m
Deal found 17/9£434
  • How do most travelers feel about British Airways?

    When planning your LHR-WAS trip, keep in mind that British Airways is typically rated 6.7/10. This rating comes from 8,224 reviews by Cheapflights users who have traveled with British Airways.

  • Can I get a flight from London Heathrow Airport to Washington, D.C. on British Airways for under £522?

    Cheapflights currently has 28 LHR-WAS flights for under £522. 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.

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

One-way from

£274

Return from

£417

Popular in

May

Cheapest in

September

Average price (all airlines)

£461
British Airways
  • British Airways
  • 10/11-31/12
  • Nonstop
  • 8h 15m total
  • London to Washington, D.C.
British Airways
  • British Airways
  • 12/2-20/2
  • Nonstop
  • 15h 40m total
  • London to Washington, D.C.
Highest demand for flights from London Heathrow to Washington, D.C.; 6% potential price increase.
Best time to find cheap flights from London Heathrow to Washington, D.C.; 1% potential price drop.
Average price for all London Heathrow to Washington, D.C. flights (one-way and round-trip).

Which month is the cheapest to fly Economy class from London Heathrow Airport to Washington, D.C.?

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

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

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

Rainfall in Washington, D.C. 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

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 57 days before departure. On average, fares are higher if you book 2 days before departure.

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

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See what others are saying about British Airways

British Airways
6.7
Okay
8,225 reviews
Overview

Boarding

7.0

Crew

7.7

Entertainment

6.5

Food

6.4

Comfort

6.8

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