LON - WAS

$233 Find Cheap Flights from London to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Washington, D.C. departing on 2/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C..
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap Flight Deals from London to Washington, D.C. (LON-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from London to Washington, D.C.

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from London to Washington, D.C..
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:45 am - 6:00 pmLTN-BWI
14h 15m1 stop
7:10 pm - 1:30 pmBWI-LTN
14h 20m1 stop
mié., mar. 12 - mié., mar. 19
7:35 am - 5:00 pmLTN-BWI
14h 25m1 stop
7:10 pm - 1:30 pmBWI-LTN
14h 20m1 stop
lun., mar. 3 - mié., mar. 19
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$372PLAY
Find Deal
lun., feb. 10 - lun., feb. 17
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$378PLAY
Find Deal
dom., ene. 26 - dom., feb. 2
3:00 pm - 11:14 amLHR-IAD
24h 14m1 stop
10:15 pm - 10:40 amIAD-LHR
7h 25mnonstop
$540United Airlines
Find Deal
sáb., mar. 29 - dom., mar. 30
7:30 am - 3:50 pmLHR-IAD
13h 20m1 stop
5:17 pm - 6:30 amIAD-LHR
32h 13m1 stop
$581Lufthansa
Find Deal
mar., ene. 28 - sáb., feb. 1
8:55 am - 4:25 pmLHR-IAD
12h 30m1 stop
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$588Lufthansa
Find Deal
mar., ene. 14 - mar., feb. 18
6:30 am - 4:26 pmLHR-IAD
14h 56m2 stops
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$593United Airlines
Find Deal
mar., ene. 21 - mar., ene. 28
3:25 pm - 7:45 pmLHR-BWI
8h 20mnonstop
9:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$596British Airways
Find Deal
mié., mar. 12 - mié., mar. 19
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$603British Airways
Find Deal
mié., feb. 12 - mié., feb. 26

Flights from London to Washington, D.C. - Travel Insights & Trends

Get data-powered insights and trends into flights from London to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London to Washington, D.C. flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Washington, D.C..
Our data shows that the cheapest route for a return flight from London to Washington, D.C. cost $749 and was between London Heathrow Airport (LHR) and Washington, D.C. Dulles Intl Airport (IAD). On average, the best prices are found if you fly from London Gatwick Airport (LGW) to Washington, D.C. Dulles Intl Airport (IAD). The average price for a return flight for this route is $749.

What’s the cheapest day of the week to fly from London to Washington, D.C.?

The average price of all round-trip flights from London to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from London to Washington, D.C., look for departures on Sundays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington, D.C., Tuesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from London to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London to Washington, D.C. is February, where tickets cost $593 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $851 and $829 respectively.

Can I save money by flying with a layover from London to Washington, D.C.?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $565 on average.

How far in advance should I book a flight from London to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from London to Washington, D.C., you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

January

High season

December

Cheapest flight

$233
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from London Luton Airport to Baltimore

When to book flights from London to Washington, D.C.

Are your dates flexible? Find out the best times to travel from London to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from London to Washington, D.C. 
KatarzynaFlew with British AirwaysLHR-IADJun 2024
It would be nice to know beforehand which aircraft is flying on that route.
BrianFlew with British AirwaysLHR-IADJul 2024
Fly KLM or Lufthansa or any carrier besides British Airways.
JeffFlew with British AirwaysLHR-IADAug 2024
We booked with American due to code share. Would try any other business class except British Airways.
JenniferFlew with United AirlinesLHR-IADMay 2024
Good luck with the flight, make sure you eat before you board the plane because that's a long flight for the food that is served on that plane.

FAQs for booking flights from London to Washington, D.C.

  • How do I travel to London airports?

    For those departing from Heathrow Airport, you can catch the Heathrow Express train from central London. This will take you only 15min. Alternatively, the Piccadilly Line on the Underground stops outside Terminals 2 & 3, Terminal 4 and Terminal 5. The Gatwick Express can take you to Gatwick Airport in 30min from Victoria Station, and those departing from Stansted Airport, can catch the Stansted Express from Tottenham Hale or Liverpool Street stations.

  • How do I travel from Washington Airport into the city?

    The Washington DC Metrorail Train System is connected to Reagan Airport with a station located on the concourse between Terminals B and C. Farecards can be found at all entrances to the station. On the other hand, the Dulles Airport is not directly connected to the Metrorail system, however the Silver Line Express bus service can connect you to the closest station, the Wiehle-Reston East Metro Station, for around $5 (£3.80).

  • Are there any passenger lounges in London airports?

    If you’d like to wait for your flight from London to Washington in comfort, you can find passenger lounges throughout Heathrow Airport. Plaza Premium Lounges are located at Terminal 2A, Terminal 3 ground floor, Terminal 4 near Gate 1 and at Terminal 5 next to Gate A7. These lounges can be accessed for £40 at the door. The Aspire Lounge & Spa at Terminal 5 has the added luxury of spa facilities and can be accessed for £35.

  • Are there any hotels near Washington Airport?

    For those flying into Dulles Airport, you can find Washing Dulles Airport Marriott on the airport campus, within a 3min drive of the terminal. This hotel also offers an airport shuttle for added convenience. The Westin and Hyatt Regency Dulles are also within a 5min drive. 5min from Ronald Reagan Airport is Crystal City, which has a range of accommodation options, including the International Luxury Suites, the Hilton Garden Inn and the Crystal City Marriott.

  • What is the cheapest flight from London to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from London to Washington, D.C. was $233 for a one-way ticket and $341 for a round-trip.

  • Do I need a passport to fly between London and Washington, D.C.?

    A passport is required to fly from London to Washington, D.C..

  • Which airports will I be using when flying from London to Washington, D.C.?

    London has 4 major airports: London City, London Gatwick, London Heathrow, and London Southend. Washington, D.C. is served by 2 airports: Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl. You’ll usually find the cheapest deals if you fly from London Stansted Airport and land at Baltimore/Washington Airport.

  • Which airlines offer Wi-Fi service onboard planes from London to Washington, D.C.?

    Only KLM offers inflight Wi-Fi service on the London to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from London to Washington, D.C.?

    The Boeing 777 is the aircraft model that flies most regularly on the London to Washington, D.C. flight route.

  • Which airline alliances offer flights from London to Washington, D.C.?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between London and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from London to Washington, D.C.?

    There are nonstop flights from London to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from London to Washington, D.C., Delta or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from London to Washington, D.C. are Delta and Virgin Atlantic. With an average price for the route of $937 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $929 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from London to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $668 or less one-way and $827 or less round-trip.
  • When booking your flights from London to Washington, you can choose to fly into either Washington Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA). Dulles Airport is larger, however Reagan Airport is only 15min from downtown Washington.
  • If you wish to purchase United States Dollars before your flight from London to Washington, you can order your foreign currency online on the Heathrow Airport website and pick it up when you arrive at the airport. Collections can be made at the Travelex counters, found at all terminals before security.
  • For those feeling lost at Dulles Airport, you can find an information desk near Baggage Claims 6, 11 and 14. Alternatively, keep an eye out for the Airport Ambassadors in their yellow shirts, volunteers who can help provide advice on airport services.
  • Those bringing their own car to Gatwick Airport (LGW) can find budget-friendly long stay parking available at the designated car park, starting at £22. You can then catch the free shuttle bus to either the South or North Terminal.
  • If you are looking for a bite to eat after your flight from London to Washington, you can find a number of options in the public area of the Reagan Airport, known as the National Hall. Before security, you can find a 24-hour Dunkin’ Donuts or Starbucks if you’re looking for a coffee.
See more tips

Prefer to fly direct from London to Washington, D.C.?

Find which airlines fly direct from London to Washington, D.C., which days they fly and book direct flights.

Direct departures

London to Washington, D.C.

Monday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Tuesday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Wednesday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Thursday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Friday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Saturday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Sunday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

See more direct flights

Direct returns

Washington, D.C. to London

Monday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Tuesday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Wednesday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Thursday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Friday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Saturday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

Sunday

Aer Lingus, Air Canada, Air France, +12 more

Aer Lingus, Air Canada, +13 more

See more direct flights
See more direct flights

Top 5 airlines serving from London to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from London to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Virgin AtlanticOverall score based on 666 reviews
7.7Boarding
8.2Crew
7.3Comfort
7.0Food
7.6Entertainment
Airline reviews

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

8.0 ExcellentAnonymous, Dec 2024LAX - CDG
Read more Virgin Atlantic reviews

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

My only complaint is that the pocket in front of me was ripped and my things, like iPad and airline magazines, kept slipping to the floor.

Flight delayed yet again. Crew apathetic and unhelpful re affect on connecting flight.

I think Virgin is one of the best flying experiences, especially from/to the UK. The staff are so helpful and fun, the food is good, seats comfortable, goof entertainment and great value. Check in and boarding is pretty pain free. I also find that the other passengers are generally so kind and considerate than when I've flown other airlines.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

ANA was great. United was horrible. They bumped us from economy plus to economy and were supposed to contact us for a refund but no luck. We booked the seats 9 months in advance.

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

Comfortable as it can be for a basic economy seat. The TV screen on my 15 hour international flight went out after 1 hour or so and it never worked again. The food is very high in processed carbs and sugary items.

A three (3) hour flight should have meal service in First Class, not just potato chips!

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Boarding and crew was great. Flight was cold, need layers. Deplaning was hard. We had to take stairs off the plane and I was separated from my travel companion because we were not seated together and they would not let him wait for me to get off so we were forced onto different shuttles.

Check in and boarding was easy, crew was cheerful. Not much to read or do on the plane and our neighboring passengers were talking loudly so we could not sleep. But overall good. Great coffee.

Flyplay is the only way I travel to Europe. Had a 15 hr layover in Iceland. Normally this would suck, but I regret a car and saw the black sand beaches, several waterfalls and sky lagoon. And finished with lamb at cafe Loki.

did not get the seats we had specially paid for

This is a no frills airline. You cant expect much for the price. Low cost flight, clean, nice staff. That's all I need for the price. If you want more, book with another airline and pay more. For Europe trips, PLAY is the ONLY airline I use

Food service was good. Aircraft was old and needed upgrade such as seats. Flight was delayed about 1 hour.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were professionals. However, the plane seats are too small -essentially there is no space to move around which for so many hours is almost inhuman but certainly unacceptable. Same with the bad quality of food and the fact that you need to purchase Wi-Fi

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

Amazing! The food was great! Best airline meal ever. The crew was so nice and pleasant.

The plane was crowded, seats narrow, legroom practically nonexistent. The entertainment feature didn't work for my row and nobody was able to/interested in trying to fix it. This was a direct contrast to a very comfortable Lufthansa flight I'd taken from RDU to Frankfurt about a week earlier.

Connection time and departure time were both changed to cause undue stree on older people who cant run through an airport

The plane was 3 hours late. What more can I say?!.. This, plus my horrendous experience of the second leg of my trip in where the plane had to be boarded (off and on) without escalators.. but not-covered outside regular steps…!! No… this is my last flight with Lufthansa!! Never again!

We were delayed so long that I missed the next flight. I should’ve arrived in Catania at 4 o’clock and arrived at 1 AM. The late departure was due to a water leak due to a dirty filter, according to the flight staff, and that seems like something that should’ve been taken care of before the flight. It’s too simple of a mechanical problem to make you miss the whole day.

I never made this flight but the staff helped to get me rebooked (see previous review)

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

Everything you need to know for your flight from London to Washington, D.C.

Cabin class types available on flights from London to Washington, D.C.

Cabin classes available on flights from London to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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