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Cheap Flights from London to Washington D.C.

Compare London 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 to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from London Airport to Washington D.C.? If you want to travel next month, return fares start from ج.م.‏ 31,133. Find the lowest prices on one-way and return tickets right here.

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 July.
Jun
from ج.م.‏ 15,047
Jul
from ج.م.‏ 12,882
Aug
from ج.م.‏ 17,508
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Mar
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Apr
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May
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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.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from ج.م.‏ 12,882
Search flights

Camp Springs Andrews AFB

17km from central Washington D.C.
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Washington Dulles

37km from central Washington D.C.
Cheapest
from ج.م.‏ 12,882
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Baltimore Washington International

44km from central Washington D.C.
from ج.م.‏ 19,779
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Manassas

47km from central Washington D.C.
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London to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 12,882
Cheapest month to flyJuly

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 ج.م.‏ 23,526. 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.
Currently, there are no airlines that fly direct from London to Washington D.C.. But we found flights with one or more stops from ج.م.‏ 23,526.
As of June 2026, there are no flights flying from London to Washington D.C..
The cheapest month to fly from London to Washington D.C. is usually July.
If you're flying from London Airport, the cheapest airport near Washington D.C. is Washington Ronald Reagan – which is 5.5 km away from the centre of Washington D.C.. We've found flights into this airport from ج.م.‏ 23,526.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Airport to Washington D.C. on Saturday, 25 July 2026.
No airlines currently offer direct flights between London Airport and Washington D.C.. Most routes have one or more stops.
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.
Currently, Air Canada offers the cheapest flight tickets to Washington D.C..

Travelling from London International Airport (YXU) to Washington DC: what you need to know

  • Washington DC's timezone is UTC-4, which is the same as London (the location of London International Airport).

  • For stress-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your YXU to Washington DC flight.

  • Be prepared for longer lines in popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • Located around 10 kilometres from central London, YXU can be reached in about 20 minutes by car. Travelling on public transport will take roughly 55 minutes.

  • Searching for a hotel close to YXU? If you've booked an early flight from London International Airport to Washington DC, these accommodation options will put you moments from your departure lounge:

  • Of all flights leaving London International Airport, 50.41% touch down on time at their destination.

How to find the cheapest flights from London International Airport (YXU) to Washington DC

  • ج.م.‏ 12,882 is the lowest price we've found for a one-way London International Airport to Washington DC flight. A return ticket right now is ج.م.‏ 23,526. Depending on when you book and the availability, these fares may change.

  • To find cheap flights from YXU to Washington DC, book in advance. Airlines tend to offer their most competitively priced fares when tickets first go on sale.

  • Finding cheap tickets from London International Airport to Washington DC is easier if you can be flexible with your travel dates. Use the 'Whole month' tool to access the best prices across the month and pick up an incredible deal.

  • There's no need to check back constantly to find out if fares have dropped when you set up a Price Alert. We'll notify you the moment there's an even bigger deal on cheap flights from YXU to Washington DC.

  • Find a cheap flight from London International Airport to Washington DC with the help of our filters. Choose your preferred times, airlines and number of stops, then sort the results by 'Cheapest' to see the best deals.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • The distance from Ronald Reagan National Airport (DCA) to central Washington DC is roughly 8 kilometres. It'll take you around 15 minutes to reach the centre driving.

  • It typically takes 45 minutes when travelling by public transport.

  • Book a hotel near DCA if you're coming in on a late flight from London International Airport to Washington DC. Choose one of these options and skip the long transfer:

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

  • Lock in the best possible rate by booking your vehicle from Ronald Reagan National Airport around four weeks before your flight from YXU to Washington DC.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Washington Dulles International Airport (IAD) is around 56 kilometres from central Washington DC. Following your flight from London International Airport to Washington DC, it'll take you around 50 minutes to get to the heart of the city in a ride-share or cab.

  • The trip will take about 1 hour 10 minutes on public transport.

  • You'll find some great places to park your luggage (and yourself) near IAD. Settle in and get cosy after your YXU to Washington DC flight at any of these well-located options:

  • Forget about public transport schedules or slow-moving cab lines. Grab a Washington Dulles International Airport rental car and take your journey in whatever direction you like. Compare rates and availability from Dollar, Thrifty and Sixt.

  • Get the lowest price by reserving your ride from IAD one week in advance. You'll also have access to a bigger selection of vehicles.

  • The address for Washington Dulles International Airport is 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Baltimore/Wash International Thurgood Marshall Airport (BWI) is about 48 kilometres from the centre of Washington DC. It'll take you about 50 minutes to get to the city centre by car after your flight from London International Airport to Washington DC.

  • If you're travelling on public transport, the journey takes about 1 hour 30 minutes.

  • Book a hotel near BWI and get from baggage claim to bedtime in a flash. Whether you're arriving on a late YXU to Washington DC flight or just want a stress-free arrival, these stays put comfort right within reach:

  • Be in the driver's seat of the next chapter of your journey with a Baltimore/Wash International Thurgood Marshall Airport rental car. Dollar, Thrifty and Budget are some companies you can book with.

  • If you're searching for a specific make or model, book your ride from BWI about two weeks ahead of your flight from London International Airport to Washington DC. This gives you a better shot at getting the car you want, as well as a better price.

Best time to go to Washington DC

  • Carefully consider your travel dates before locking in your flight from London International Airport to Washington DC. The city buzzes in high season, but prices are generally higher and major attractions can be crowded. Go to Washington DC in the low season if you want a quieter vibe.

  • Lock in a London International Airport to Washington DC flight ticket with a departure in July if you want to experience the city during its warmest month. You can expect temperatures to range from 19ºC to 33ºC.

  • For cooler conditions, search for a cheap ticket from YXU to Washington DC in January when temperatures average between -6ºC and 10ºC.

More about Washington DC

Explore more of United States

  • New York is just one of the many cities in United States waiting to be explored after you've experienced Washington DC. Around 322 kilometres away to the north-east, its best attractions include Statue of Liberty, Central Park and Empire State Building.

  • If you want to check out another major stop in United States, consider Philadelphia, roughly 193 kilometres north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are highlights.

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 12 days.