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Cheap Flights from Washington D.C. to London

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Compare Washington D.C. to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from Washington D.C. to London

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to London? Find the lowest prices on one-way and return tickets right here.
London.Rs53,122 per passenger.Departing Sun, 27 Jul.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sun, 27 Jul, arriving in London Heathrow.Price includes taxes and charges.From Rs53,122, select.
London.Rs55,287 per passenger.Departing Fri, 1 Aug.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Fri, 1 Aug, arriving in London Heathrow.Price includes taxes and charges.From Rs55,287, select.
London.Rs55,466 per passenger.Departing Sat, 18 Oct.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 18 Oct, arriving in London Heathrow.Price includes taxes and charges.From Rs55,466, select.
London.Rs57,922 per passenger.Departing Sun, 21 Sep.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sun, 21 Sep, arriving in London Heathrow.Price includes taxes and charges.From Rs57,922, select.
London.Rs59,195 per passenger.Departing Wed, 5 Nov.One-way flight with Fly Play.Outbound indirect flight with Fly Play, departs from Baltimore Washington International on Wed, 5 Nov, arriving in London Luton.Price includes taxes and charges.From Rs59,195, select.
London.Rs62,974 per passenger.Departing Sat, 7 Feb.One-way flight with Fly Play.Outbound indirect flight with Fly Play, departs from Baltimore Washington International on Sat, 7 Feb, arriving in London Luton.Price includes taxes and charges.From Rs62,974, select.
London.Rs63,112 per passenger.Departing Thu, 15 Jan.One-way flight with Fly Play.Outbound indirect flight with Fly Play, departs from Baltimore Washington International on Thu, 15 Jan, arriving in London Luton.Price includes taxes and charges.From Rs63,112, select.
London.Rs63,526 per passenger.Departing Mon, 15 Dec.One-way flight with Fly Play.Outbound indirect flight with Fly Play, departs from Baltimore Washington International on Mon, 15 Dec, arriving in London Luton.Price includes taxes and charges.From Rs63,526, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to London flights are currently cheapest in July.
May
from Rs92,844
Jun
from Rs64,937
Jul
from Rs53,122
Aug
from Rs55,287
Sep
from Rs57,922
Oct
from Rs55,466
Nov
from Rs59,195
Dec
from Rs63,526
Jan
from Rs63,112
Feb
from Rs62,974
Mar
from Rs68,945
Apr
from Rs88,767

Direct flights from Washington D.C. to London

Alternative Washington D.C. to London routes

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

Washington D.C. to London: Flight information

The things to know before you go.
Cheapest flight foundRs53,122
Cheapest month to flyJuly
Average flight time7 hrs, 18 mins
Most popular airlineAmerican Airlines
Average flights per week241

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

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Washington D.C. to London is Rs100,697. 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.
7 hours and 17 minutes is the average flight time from Washington D.C. to London.
American Airlines, British Airways and Aer Lingus fly direct from Washington D.C. to London.
As of May 2025, there are 241 flights per week flying from Washington D.C. to London.
The cheapest month to fly from Washington D.C. to London is usually October.
If you're flying from Washington D.C., the cheapest airport near London is London Gatwick – which is 40.3 km away from the centre of London. We've found flights into this airport from Rs100,697.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to London on Monday, 27 October 2025.
Yes – the average flight time is 7 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 London 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 London is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
The cheapest airline that flies to London is Fly Play. And the cheapest airline that flies to London Heathrow Airport is British Airways.

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

  • Planning your flight from Washington DC to London begins with finding the best airport to kick off your trip. Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI) are the main departure points in Washington DC.

  • London has numerous airports you can fly into. Make your landing at London Heathrow Airport (LHR), London Gatwick Airport (LGW) or Stansted Airport (STN). Alternatively, arrive at London Luton Airport (LTN) or London City Airport (LCY).

  • The average length of a direct Washington DC to London flight is 7 hours 20 minutes.

  • The timezone in London is UTC+0, which is four hours ahead of Washington DC.

  • Leave plenty of time to make your Washington DC to London flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • Peak months like February or high seasons such as spring break and Christmas will mean bigger lines at security and check-in. Travelling then? Play it safe and get to the terminal even earlier. Arriving two hours before domestic flights and four hours ahead of international departures is a wise idea.

How to find the cheapest flights from Washington DC to London

  • Don't leave everything to the last moment. You're more likely to find cheap Washington DC to London flights if you book ahead. Airlines often have some amazing early bird rates.

  • The 'Whole month' tool shows you the cheapest plane tickets from Washington DC to London across the entire month. It's an easy way to find a bargain if your plans aren't set in stone.

  • Cut down on the time spent looking for cheap flights from Washington DC to London by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Or sort your Washington DC to London flight results by 'Best,' 'Cheapest' or 'Fastest.'

Flying from Washington DC

Ronald Reagan National Airport (DCA)

  • Stopovers are the perfect opportunity to break up your trip — and possibly even explore a different city. When browsing Washington DC to London flights leaving from Ronald Reagan National Airport, deselect the 'Direct flights only' box to see where you can stop along the way. Some popular options include:

    • Logan International Airport (BOS)

    • John F. Kennedy International Airport (JFK)

    • Newark Liberty International Airport (EWR)

  • DCA is around 6 kilometres from central Washington DC. If you're driving, catching a cab or ride-sharing from the centre, it'll take 15 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be around 45 minutes.

  • Searching for a convenient hotel close to Ronald Reagan National Airport? If you're boarding an early flight from Washington DC to London, these stays will have you moments from your check-in counter:

  • 76.44% of flights that take off from Ronald Reagan National Airport make it to their destination on time.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Rather fly from Washington Dulles International Airport (IAD)? This popular hub offers nonstop flights from Washington DC to London, seamlessly connecting you to London Heathrow Airport (LHR).

  • Book your direct Washington DC to London plane ticket with one of these popular carriers that operate this route from IAD:

  • Get the most out of your holiday with a stopover on your Washington DC to London flight. Visit family or friends or tick a new city off your list. Whatever you choose to do, check out these stops between Washington Dulles International Airport and London:

    • Edinburgh Airport (EDI)

    • Amsterdam Airport Schiphol (AMS)

    • Dublin Airport (DUB)

  • You can reach IAD from the centre of Washington DC in about 50 minutes by car, depending on traffic. The ride on public transport will take roughly 1 hour 10 minutes to cover the 40 kilometres or so.

  • Start your holiday early with an extra night away from home. Before catching your flight from Washington DC to London, take it easy in one of these hotels near Washington Dulles International Airport:

  • 74.39% of flights leaving Washington Dulles International Airport make it to their destination as expected.

  • The address for IAD is 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Baltimore/Wash International Thurgood Marshall Airport (BWI) has direct flights from Washington DC to London. Your trip from BWI will take you straight to London Heathrow Airport (LHR).

  • Fly out of BWI with British Airways. This trusted airline offers direct Washington DC to London plane tickets.

  • You can lock in a ticket from Washington DC to London with a stop or two departing from Baltimore/Wash International Thurgood Marshall Airport (BWI). These are some of the most common stopovers between BWI and London:

    • Logan International Airport (BOS)

    • John F. Kennedy International Airport (JFK)

    • Keflavik International Airport (KEF)

  • From central Washington DC, BWI is around 40 kilometres away. It'll take you roughly 50 minutes to get there by car and 1 hour 30 minutes or so on public transport.

  • Make catching an early Washington DC to London flight one of the easiest parts of your trip. Stay at one of these hotels near Baltimore/Wash International Thurgood Marshall Airport and get to the check-in counter without rushing:

  • The on-time performance record of BWI is 77.13%. To put it simply, that's how frequently flights that depart this airport arrive at their final stop as planned.

Arriving in London

London Heathrow Airport (LHR)

  • The distance from London Heathrow Airport (LHR) to central London is roughly 26 kilometres. It'll take you about 55 minutes to reach the centre driving.

  • Travelling to the centre on public transport takes about 1 hour.

  • If you're arriving on a late flight from Washington DC to London, nothing beats the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and snoozing soon after at one of these hotels near LHR:

  • Follow your own route with a London Heathrow Airport rental car. Pick up your wheels from Surprice, U-Save or Green Motion and find adventure across London and beyond.

  • To get the lowest price, reserve your ride from London Heathrow Airport around one week in advance of your Washington DC to London flight.

London Gatwick Airport (LGW)

  • After your flight from Washington DC to London has landed, you can reach the city centre in around 1 hour 20 minutes by car. Central London is roughly 40 kilometres from London Gatwick Airport (LGW).

  • If you choose to travel on public transport, the ride to the centre takes 30 minutes or so.

  • Hang up the 'Do not disturb' sign and relax at a hotel close to LGW. Here are a few options where you can tuck yourself in after your flight from Washington DC to London:

  • Green Motion, U-Save and Drivalia make collecting a London Gatwick Airport rental car easy and quick. These providers are located around or in the terminal and will have you on your way in a heartbeat.

  • Avoid last-minute price surges. Reserving your ride three weeks before your arrival at LGW will save you money.

Stansted Airport (STN)

  • Stansted Airport (STN) is around 48 kilometres from central London. It takes about 1 hour to reach the city centre in a car after your flight from Washington DC to London.

  • Public transport can get you there in about 1 hour 25 minutes.

  • Enjoy a more leisurely start to your trip by checking in to a hotel near STN after your Washington DC to London flight. Unwind after a day of travel or simply give yourself time to settle into a new destination at:

  • Whether you want a compact for solo travel or an SUV to fit a group of friends, you'll find the right Stansted Airport rental car for your needs. Check out wheels available here from names such as Green Motion, Drivalia and Europcar.

  • Plan ahead and enjoy the payoff. Book your ride from STN four weeks before your flight from Washington DC to London for the best rates.

Best time to go to London

  • February is the quietest month for flights from Washington DC to London, while July is the busiest. Figure out the best time to go to London based on whether you prefer a laid-back vibe or a lively atmosphere.

  • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Lock in your Washington DC to London ticket then if that's your definition of good weather.

  • January has average temperatures of between 0ºC and 9ºC. Look for cheap flights from Washington DC to London around that time if you like cooler conditions.

More about London

  • When it comes to searching for somewhere to lay your head, you'll find the most popular stays in London right here. Explore these hotels after you've booked your flight from Washington DC to London:

  • All great holidays should include a little sightseeing. Big Ben, The British Museum and Buckingham Palace are must-do's during your London adventure.

Explore more of United Kingdom

  • You've done London, now it's time to explore other corners of United Kingdom. Journey about 161 kilometres north-west to Birmingham to tick off its popular sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, there's plenty to keep you busy.

  • If you're eager to discover another major destination in United Kingdom, head for Bristol, about 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are among its highlights.

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

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