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Cheap Flights from London Heathrow to Washington D.C.

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Compare London Heathrow to Washington D.C. flight deals

Find the cheapest month or even day of the year to fly to Washington D.C.

Book the best Washington D.C. fare with no extra fees

Flight deals from London Heathrow to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Washington D.C.? Find the lowest prices on one-way and return tickets right here.
Washington D.C..SAR 1,108 per passenger.Departing Tue, 10 Mar.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Tue, 10 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,108, select.
Washington D.C..SAR 1,126 per passenger.Departing Wed, 11 Feb.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 11 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,126, select.
Washington D.C..SAR 1,137 per passenger.Departing Sun, 25 Jan.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Sun, 25 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,137, select.
Washington D.C..SAR 1,137 per passenger.Departing Wed, 10 Dec.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 10 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,137, select.
Washington D.C..SAR 1,147 per passenger.Departing Mon, 17 Nov.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Mon, 17 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,147, select.
Washington D.C..SAR 1,243 per passenger.Departing Tue, 28 Oct.One-way flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Tue, 28 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,243, select.
Washington D.C..SAR 1,303 per passenger.Departing Thu, 5 Jun.One-way flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Thu, 5 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,303, select.
Washington D.C..SAR 1,318 per passenger.Departing Sun, 7 Sep.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Sun, 7 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From SAR 1,318, select.

Find the cheapest month to fly from London Heathrow to Washington D.C.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Washington D.C. flights are currently cheapest in March.
Apr
from SAR 1,841
May
from SAR 1,331
Jun
from SAR 1,303
Jul
from SAR 1,630
Aug
from SAR 1,507
Sep
from SAR 1,318
Oct
from SAR 1,243
Nov
from SAR 1,147
Dec
from SAR 1,137
Jan
from SAR 1,137
Feb
from SAR 1,126
Mar
from SAR 1,108

Direct flights from London Heathrow to Washington D.C.

Alternative London Heathrow to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Washington D.C.? You could fly into the following airports instead.

London to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundSAR 1,108
Cheapest month to flyMarch
Average flight time8 hrs, 16 mins
Most popular airlineBritish Airways
Average flights per week258

Finding cheap flights from London Heathrow to Washington D.C.: Frequently asked questions

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from London Heathrow to Washington D.C. is SAR 1,756. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours and 16 minutes is the average flight time from London Heathrow to Washington D.C..
British Airways, American Airlines and Aer Lingus fly direct from London Heathrow to Washington D.C..
As of April 2025, there are 516 flights per week flying from London Heathrow to Washington D.C..
The cheapest month to fly from London Heathrow to Washington D.C. is usually April 2025.
If you're flying from London Heathrow Airport, the cheapest airport near Washington D.C. is Baltimore Washington International – which is 43.6 km away from the centre of Washington D.C.. We've found flights into this airport from SAR 1,756.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Washington D.C. on Tuesday, 6 May 2025.
Yes – the average flight time is 8 hours and 16 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington D.C. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 12°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
Currently, Air France and Austrian Airlines offer the cheapest flight tickets to Washington D.C..

How to find cheap flights to Washington D.C. from London Heathrow

Looking for cheap tickets from London Heathrow to Washington D.C.? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from London Heathrow to Washington D.C.. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Washington D.C. from London Heathrow from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best London Heathrow-Washington D.C. ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Washington D.C. from London Heathrow.
  • Set up a Price Alert. You can easily track the fare of your cheap London Heathrow-Washington D.C. flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between London Heathrow and Washington D.C.? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from London Heathrow and Washington D.C.. We scour the internet for the best Business, Premium Economy and First Class flight fares to Washington D.C., too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for London Heathrow to Washington D.C. flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Washington D.C. from London Heathrow with hotels and car hire

    Once you've secured your cheap flight ticket from London Heathrow to Washington D.C., discover the best prices and exclusive rates for hotels in Washington D.C. or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


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Plan the rest of your trip from London to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.