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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 return flight from London to Washington D.C.? Find the lowest prices on one-way and return tickets right here.
Washington D.C..333 € per passenger.Departing Mon, 13 Oct, returning Thu, 23 Oct.Return flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departs from London Gatwick on Mon, 13 Oct, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departs from Baltimore Washington International on Thu, 23 Oct, arriving in London Gatwick.Price includes taxes and charges.From 333 €, select.
Washington D.C..344 € per passenger.Departing Sun, 28 Sep, returning Tue, 21 Oct.Return flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departs from London Luton on Sun, 28 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departs from Baltimore Washington International on Tue, 21 Oct, arriving in London Luton.Price includes taxes and charges.From 344 €, select.
Washington D.C..354 € per passenger.Departing Wed, 10 Sep, returning Tue, 30 Sep.Return flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departs from London Luton on Wed, 10 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departs from Baltimore Washington International on Tue, 30 Sep, arriving in London Luton.Price includes taxes and charges.From 354 €, select.
Washington D.C..405 € per passenger.Departing Mon, 15 Dec, returning Tue, 6 Jan.Return flight with easyJet and Fly Play.Outbound indirect flight with easyJet, departs from London Luton on Mon, 15 Dec, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departs from Baltimore Washington International on Tue, 6 Jan, arriving in London Luton.Price includes taxes and charges.From 405 €, select.
Washington D.C..406 € per passenger.Departing Wed, 26 Nov, returning Sun, 7 Dec.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from London Gatwick on Wed, 26 Nov, arriving in Washington Dulles.Inbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Sun, 7 Dec, arriving in London Gatwick.Price includes taxes and charges.From 406 €, select.
Washington D.C..407 € per passenger.Departing Wed, 5 Nov, returning Sat, 15 Nov.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from London Gatwick on Wed, 5 Nov, arriving in Washington Dulles.Inbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Sat, 15 Nov, arriving in London Gatwick.Price includes taxes and charges.From 407 €, select.
Washington D.C..409 € per passenger.Departing Wed, 22 Oct, returning Mon, 10 Nov.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from London Gatwick on Wed, 22 Oct, arriving in Washington Dulles.Inbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Mon, 10 Nov, arriving in London Gatwick.Price includes taxes and charges.From 409 €, select.
Washington D.C..409 € per passenger.Departing Mon, 12 Jan, returning Sun, 18 Jan.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from London Heathrow on Mon, 12 Jan, arriving in Washington Dulles.Inbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Sun, 18 Jan, arriving in London Gatwick.Price includes taxes and charges.From 409 €, 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 October.
Jun
from 527 €
Jul
from 495 €
Aug
from 467 €
Sep
from 354 €
Oct
from 333 €
Nov
from 407 €
Dec
from 442 €
Jan
from 409 €
Feb
from 442 €
Mar
from 409 €
Apr
from 513 €
May
from 513 €

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 found333 €
Cheapest month to flyOctober
Average flight time8 hrs, 18 mins
Most popular airlineAmerican Airlines
Average flights per week231

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 return flight from London to Washington D.C. is 333 €. 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 Aer Lingus fly direct from London to Washington D.C..
As of June 2025, there are 225 flights per week flying from London to Washington D.C..
The cheapest month to fly from London to Washington D.C. is usually June 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 centre of Washington D.C.. We've found flights into this airport from 333 €.
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, 13 October 2025.
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 June, the average temperature is usually around 22°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 Iberia.

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

  • When organising a flight from London to Washington DC, you'll have a good choice of airports to jet out of. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Hop off the plane at one of Washington DC's major gateways like Ronald Reagan National Airport (DCA). Alternatively, make your way to this city landing at Washington Dulles International Airport (IAD) or Baltimore/Wash International Thurgood Marshall Airport (BWI).

  • Book a direct London to Washington DC flight and you'll be travelling for an average of 8 hours 15 minutes.

  • Washington DC is four hours behind London and is in the UTC-4 timezone.

  • London Heathrow Airport (LHR) to Washington Dulles International Airport (IAD) is the most popular route that connects these two cities. There are 39 departures a week to pick from. If you prefer a later start to the day, the last flight from London to Washington DC is with British Airways at 17:35. Go for the first LHR to IAD departure operated by United Airlines at 07:10 to make the most of your arrival in Washington DC.

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

  • Travelling over a peak time such as July? Public holidays and other high seasons can lead to longer queues and delays at check-in and security. Be extra cautious and get there up to four hours before international flights and two hours before a domestic departure.

How to find the cheapest flights from London to Washington DC

  • Book two months before you want to fly. Research into pricing trends suggests this is the ideal window for finding cheap London to Washington DC flights.

  • Organise your trip for May. That's the best month for scoring a great bargain on plane tickets from London to Washington DC. If your travel dates are flexible, use the 'Whole month' tool to see the cheapest price across each month.

  • There's no need to check back in every day to find out if prices have dropped when you set up a Price Alert. We'll let you know when a better deal comes up on cheap flights from London to Washington DC.

  • Save on your London to Washington DC flight with the help of our filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from London

London Heathrow Airport (LHR)

  • You can find a direct flight from London to Washington DC jetting out of London Heathrow Airport (LHR). Begin your trip at LHR and then make your arrival at Washington Dulles International Airport (IAD) or Baltimore/Wash International Thurgood Marshall Airport (BWI).

  • Top airlines that offer direct London to Washington DC plane tickets from LHR include:

  • We make it simple to find a London to Washington DC flight with a stopover. To see all your options leaving from London Heathrow Airport, uncheck 'Direct flights only.' Next, choose a flight with a stop long enough to see the sights of the city of your choice. Some popular stopovers include:

    • Logan International Airport (BOS)

    • John F. Kennedy International Airport (JFK)

    • Raleigh-Durham International Airport (RDU)

  • The journey from central London to LHR takes around 1 hour on public transport. If you ride-share, drive or get a cab, you'll cover the 26 kilometres in 55 minutes or so, depending on traffic conditions.

  • After a relaxed start to your holiday? Stay near London Heathrow Airport. Whether you're catching an early flight from London to Washington DC or want to avoid feeling rushed, these hotels have you covered:

  • When it comes to London Heathrow Airport's on-time performance, 68.18% of flights arrive within the scheduled time frame.

London Gatwick Airport (LGW)

  • Make the most of your holiday with a stopover on your London to Washington DC flight. Visit family or friends or cross another city off your list. Whatever you'd like to do, here's where you can stop between London Gatwick Airport and Washington DC:

    • John F. Kennedy International Airport (JFK)

    • Keflavik International Airport (KEF)

    • Frankfurt Airport (FRA)

  • You can get to LGW from central London in about 1 hour 20 minutes by car, depending on traffic. The journey on public transport will take roughly 30 minutes to cover the 40 kilometres or so.

  • Want to enjoy an extra night away before catching your flight from London to Washington DC? Unwind in a hotel near London Gatwick Airport before your break officially starts. Check out these accommodation options:

  • When it comes to flight punctuality, London Gatwick Airport has an on-time arrival performance of 69.26%.

Stansted Airport (STN)

  • Booking a ticket from London to Washington DC with a stop or two can give you a bigger choice of departure times on top of cheaper fares. When leaving from Stansted Airport (STN), here are a few places you can detour to on the way to Washington DC:

    • Keflavik International Airport (KEF)

    • Dublin Airport (DUB)

    • Amsterdam Airport Schiphol (AMS)

  • The trip to STN from the centre of London is around 1 hour 25 minutes by public transport. If you're planning to travel by car, it'll take you roughly 1 hour to cover the 48 kilometres or so.

  • Relax in bed for a little longer and still make your London to Washington DC flight with plenty of time to spare. These accommodation options near Stansted Airport make departure day a breeze if you're jetting off early:

  • Airports have an on-time performance rating that measures how often flights arrive when they should. At STN, that rate is 64.73%.

Arriving in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) is approximately 6 kilometres from the centre of Washington DC. If you're catching a cab or a ride-share, the drive takes around 15 minutes.

  • Getting there on public transport takes roughly 45 minutes.

  • Consider booking a hotel near DCA if you're coming in on a late flight from London to Washington DC. Pick one of these accommodation options and skip the long transfer:

  • Pick up a Ronald Reagan National Airport rental car and discover Washington DC and beyond with your own wheels. Thrifty, Sixt and Dollar are top providers to choose from here.

  • Get the best deal by booking your ride from Ronald Reagan National Airport around four weeks in advance of your trip.

  • The address for DCA is 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Washington Dulles International Airport (IAD) is around 40 kilometres from the centre of Washington DC. Following your flight from London to Washington DC, it'll take you approximately 50 minutes to reach the heart of the city in a ride-share or cab.

  • If you choose to travel on public transport, the journey will take you 1 hour 10 minutes or so.

  • Hang the 'Do not disturb' sign on your door and relax at a hotel near IAD. Here are a few options where you can kick back after your flight from London to Washington DC:

  • The fastest way to get to where you're going is with a Washington Dulles International Airport rental car. Collect your wheels from Dollar, Thrifty or Sixt and get going in the blink of an eye.

  • Get first dibs on the best options. Reserving your ride from IAD one week in advance often means more savings and a greater range of vehicles.

  • Washington Dulles International Airport is located at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Hop off your flight from London to Washington DC and go straight to your hotel or start exploring right away. Central Washington DC is around 40 kilometres from Baltimore/Wash International Thurgood Marshall Airport (BWI) and usually takes 50 minutes to drive there.

  • The journey will take you about 1 hour 30 minutes if you use public transport.

  • Find a hotel close to BWI and go from landing to lounging in your room in a flash. Whether you're coming in on a late London to Washington DC flight or just want a stress-free arrival, these stays bring comfort closer to you:

  • Start your trip without stressing about how to reach your destination with a Baltimore/Wash International Thurgood Marshall Airport rental car. You can book a set of wheels from trusted companies here like Dollar, Thrifty and Budget.

  • If you're looking for a specific make or model, lock in your ride from BWI around two weeks ahead of your flight from London to Washington DC. This gives you a higher chance of getting the car you prefer, on top of a better deal.

Best time to go to Washington DC

  • It's time to figure out your trip dates for your flight from London to Washington DC. February is the most popular month for a trip to Washington DC. If you prefer a more relaxed vibe, go in May.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your London to Washington DC ticket then if that's your definition of good weather.

  • Search for cheap flights from London to Washington DC in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

More about Washington DC

Explore more of United States

  • New York is just one of the many cities in United States waiting to be discovered once you've taken in the sights of Washington DC. Around 322 kilometres to the north-east, popular attractions include Statue of Liberty, Central Park and Empire State Building.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another essential stop in United States. Experience major highlights starting with Liberty Bell, Independence Hall and Philadelphia Museum of Art.

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.