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Cheap flights from London to Washington, D.C.

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Compare London to Washington, D.C. flight deals

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

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Flight deals from London to Washington, D.C.

Looking for a cheap last-minute deal or the best round-trip flight from London to Washington, D.C.? Find the lowest prices on one-way and round-trip tickets right here.
Washington, D.C..$368 per passenger.Departing Mon, Feb 2, returning Mon, Feb 9.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Mon, Feb 2, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Mon, Feb 9, arriving in London Luton.Price includes taxes and charges.From $368, select.
Washington, D.C..$369 per passenger.Departing Wed, Feb 25, returning Sun, Mar 1.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Wed, Feb 25, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Sun, Mar 1, arriving in London Luton.Price includes taxes and charges.From $369, select.
Washington, D.C..$369 per passenger.Departing Thu, Dec 11, returning Sun, Dec 14.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Thu, Dec 11, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Sun, Dec 14, arriving in London Luton.Price includes taxes and charges.From $369, select.
Washington, D.C..$377 per passenger.Departing Thu, Jan 15, returning Thu, Feb 5.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Gatwick on Thu, Jan 15, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Thu, Feb 5, arriving in London Gatwick.Price includes taxes and charges.From $377, select.
Washington, D.C..$391 per passenger.Departing Sun, May 4, returning Tue, May 6.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Sun, May 4, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Tue, May 6, arriving in London Luton.Price includes taxes and charges.From $391, select.
Washington, D.C..$392 per passenger.Departing Tue, Nov 4, returning Tue, Nov 11.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Tue, Nov 4, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Tue, Nov 11, arriving in London Luton.Price includes taxes and charges.From $392, select.
Washington, D.C..$396 per passenger.Departing Wed, Apr 23, returning Thu, May 1.Round-trip flight with Fly Play.Outbound indirect flight with Fly Play, departing from London Stansted on Wed, Apr 23, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Thu, May 1, arriving in London Stansted.Price includes taxes and charges.From $396, select.
Washington, D.C..$398 per passenger.Departing Mon, Mar 2, returning Sat, Mar 7.Round-trip flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departing from London Luton on Mon, Mar 2, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departing from Baltimore Washington International on Sat, Mar 7, arriving in London Luton.Price includes taxes and charges.From $398, select.

Find the cheapest month to fly from London 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 to Washington, D.C. flights are currently cheapest in February.
Mar
from $411
Apr
from $405
May
from $391
Jun
from $503
Jul
from $560
Aug
from $604
Sep
from $398
Oct
from $440
Nov
from $392
Dec
from $369
Jan
from $401
Feb
from $368

Direct flights from London to Washington, D.C.

Alternative London to Washington, D.C. routes

Looking for the cheapest, fastest or easiest route from London 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 found$368
Cheapest month to flyFebruary
Average flight time8 hrs, 18 mins
Most popular airlineAmerican Airlines
Average flights per week257

Finding cheap flights from London 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 round-trip flight from London to Washington, D.C. is $368. 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 17 minutes is the average flight time from London to Washington, D.C..
American Airlines, British Airways and KLM fly direct from London to Washington, D.C..
There are 1,028 flights per week flying from London to Washington, D.C., as of March 2025.
The cheapest month to fly from London to Washington, D.C. is usually March 2025.
If you're flying from London, the cheapest airport near Washington, D.C. is Baltimore Washington International – which is 43.6 km away from the center of Washington, D.C.. We've found flights to this airport from $368.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Washington, D.C. on Monday, February 2, 2026.
Yes – the average flight time is 8 hours and 17 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 March, the average temperature is usually around 6°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.
The cheapest airline that flies to Washington, D.C. is easyJet, and the cheapest airline that flies to Camp Springs Andrews AFB Airport is Austrian Airlines.

Traveling from London to Washington DC: what you need to know

  • London has many airports where you can begin your trip. Check out your departure options from London Heathrow Airport (LHR) and London Gatwick Airport (LGW) when organizing your flight from London to Washington DC. Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY) are the city's other main bases.

  • When arriving in Washington DC, hop off the plane at Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Baltimore/Wash International Thurgood Marshall Airport (BWI) is another way to get to this city.

  • A direct flight from London to Washington DC takes an average of 8 hours 17 minutes. The timezone in Washington DC is UTC-4, which makes it 4 hours behind London.

  • With 56 flights a week between the two airports, London Heathrow Airport (LHR) to Washington Dulles International Airport (IAD) is the most popular route. Board the earliest flight from London to Washington DC with United Airlines at 07:10. If you prefer to make the most of your day before you fly, the last flight from LHR to IAD is with British Airways at 17:35.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your flight from London to Washington DC.

  • Traveling during a peak period like school or public holidays? Expect longer queues at check-in and security. To be on the safe side, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • You will need an ETA for United States if you have a passport from United Kingdom and are visiting for tourism purposes. Visa and travel documentation requirements can change. So before you lock in those cheap flights from London to Washington DC, check with your airline and the destination country's local embassy or consulate for the latest information.

Flying from London

London Heathrow Airport (LHR)

  • Begin your travels at London Heathrow Airport (LHR), which offers a range of direct flights from London to Washington DC. From LHR, you can fly straight into Washington Dulles International Airport (IAD) or Baltimore/Wash International Thurgood Marshall Airport (BWI).

  • Popular airlines that have direct flights from London to Washington DC departing LHR include:

  • Stopovers are the ideal opportunity to take a travel break — and maybe even visit a new city. When searching for flights from London to Washington DC leaving from London Heathrow Airport, uncheck the 'Direct flights only' box to see where you can stop along the way. Here are some popular options to consider:

    • John F. Kennedy International Airport (JFK)

    • Raleigh-Durham International Airport (RDU)

    • Logan International Airport (BOS)

  • LHR is around 31 kilometers from central London. If you're ride-sharing, catching a cab or driving from the center, it'll take you 57 minutes or so to get there, depending on traffic. If you're taking public transport, expect the trip time to be approximately 1 hour and 1 minute.

  • After a relaxed start to your travels? Stay near London Heathrow Airport. Whether you're boarding an early flight from London to Washington DC or just don't like being rushed, these hotels are just the thing:

London Gatwick Airport (LGW)

  • Break up your flight from London to Washington DC with a stop so you can freshen up or cross another place off your list. Some great stopovers between London Heathrow Airport and Washington DC are:

    • John F. Kennedy International Airport (JFK)

    • Raleigh-Durham International Airport (RDU)

    • Logan International Airport (BOS)

  • LGW is about 80 kilometers from central London. It'll take 1 hour and 19 minutes or so to get to the airport if you're driving from the city center. Public transport takes approximately 1 hour and 26 minutes.

  • Start your vacation early with an additional night away from home. Before catching your flight from London to Washington DC, take things easy in one of these hotels near London Gatwick Airport:

Arriving in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) is around 8 kilometers from central Washington DC. With a car rental or if you're catching a cab, the drive is about 16 minutes.

  • Getting to the center on public transport typically takes 43 minutes.

  • If you're arriving on a late flight from London to Washington DC, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and snoozing not long after at one of these hotels near DCA:

Washington Dulles International Airport (IAD)

How to find the cheapest flights from London to Washington DC

  • Currently, $213 is the best price we've seen for a one-way ticket from London to Washington DC. The cheapest price for a return flight is $368. Remember fares can change due to demand at the time of booking.

  • Score cheap tickets from London to Washington DC by booking at least 9 months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • May is the cheapest month for tickets from London to Washington DC. If you want to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Getting a cheap ticket from London to Washington DC is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as the price has dropped.

  • Play around with filters to find your ideal trip. To see the 'Best,' 'Cheapest' or 'Fastest' flights from London to Washington DC, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

Best time to go to Washington DC

  • July is the most popular month for flights from London to Washington DC. To avoid the crowds, visit Washington DC in May.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC and 33ºC. Lock in your flights from London to Washington DC in this month if this is the type of weather you like.

  • January sees average temperatures of between -6ºC and 10ºC. Search for cheap tickets from London to Washington DC sometime around then if you want to travel in cooler conditions.

More about Washington DC

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Washington DC right here. Check out these hotels as soon as you've locked in your flight from London to Washington DC:

  • Every great vacation has to include some sightseeing. White House Historical Association, The White House and National Mall are essential stops on your Washington DC itinerary.

Complete your Washington DC trip with a car rental

  • Browse our lineup of car rentals once you've found your hotel and cheap flight from London to Washington DC. Whether you're after a compact ride, spacious sedan or something with all the extras, you can compare companies in one go to find the perfect deal.

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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.