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IAD - LHR

Find cheap flights from Washington Dulles Airport to London Heathrow Airport from £177

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Heathrow departing on 22/10. 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.
1 adult
0 bags
qui 6/6
qui 13/6

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London.
In the last 7 days, travellers have searched 43,707,506 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Dulles Intl to Heathrow (IAD-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Heathrow 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
20:30 - 11:55IAD-LHR
10h 25m1 stop
21:25 - 22:10LHR-IAD
29h 45m1 stop
£385Icelandair
Find Deal
dom, 28 jul - qui, 22 ago
22:30 - 22:00IAD-LHR
18h 30m1 stop
08:00 - 15:20LHR-IAD
12h 20m1 stop
£408TAP AIR PORTUGAL
Find Deal
ter, 10 set - qui, 3 out
18:30 - 06:45IAD-LHR
7h 15mdirect
13:45 - 17:25LHR-IAD
31h 40m1 stop
£485United Airlines
Find Deal
qua, 23 out - seg, 28 out
22:25 - 10:40IAD-LHR
7h 15mdirect
06:50 - 14:25LHR-IAD
12h 35m1 stop
£491United Airlines
Find Deal
ter, 8 out - qui, 17 out
17:55 - 06:15IAD-LHR
7h 20mdirect
12:35 - 15:35LHR-IAD
8h 00mdirect
£497British Airways
Find Deal
qua, 25 set - sex, 11 out
22:15 - 10:30IAD-LHR
7h 15mdirect
06:15 - 16:10LHR-IAD
14h 55m1 stop
£500Virgin Atlantic
Find Deal
seg, 20 mai - sex, 31 mai
22:25 - 10:40IAD-LHR
7h 15mdirect
06:30 - 13:30LHR-IAD
12h 00m1 stop
£501Lufthansa
Find Deal
qua, 25 set - sex, 11 out
22:15 - 10:30IAD-LHR
7h 15mdirect
17:30 - 20:25LHR-IAD
7h 55mdirect
£517Virgin Atlantic
Find Deal
dom, 28 jul - qui, 22 ago
22:45 - 11:05IAD-LHR
7h 20mdirect
17:25 - 20:30LHR-IAD
8h 05mdirect
£532British Airways
Find Deal
qua, 11 set - ter, 24 set
18:30 - 06:45IAD-LHR
7h 15mdirect
08:30 - 16:05LHR-IAD
12h 35m1 stop
£541Lufthansa
Find Deal
qua, 2 out - dom, 6 out

Flights from Dulles Intl to Heathrow - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to London Heathrow Airport?

The average price of all flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Washington Dulles Airport to London Heathrow Airport, look for departures on Saturdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from London Heathrow Airport, Wednesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, 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 Washington, D.C. Dulles Intl Airport to London Heathrow Airport is November, where tickets cost £519 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £864 and £758 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to London Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Icelandair (£177) and Lufthansa (£272). The cheapest round-trip tickets were found on Icelandair (£385) and TAP AIR PORTUGAL (£408).

Which airlines fly most frequently between Washington Dulles Airport and London Heathrow Airport?

British Airways connects Washington Dulles Airport to London Heathrow Airport with up to 3 flights per day. United Airlines also offers 2 flights per day, while Virgin Atlantic follows with 2 flights per day.

Which airlines fly direct between Washington, D.C. Dulles Intl Airport and London Heathrow Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport.
There are 3 airlines that fly direct from Washington, D.C. Dulles Intl Airport to London Heathrow Airport. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with United Airlines at £456 for a one-way flight. On average, the best prices for this route can be found at Virgin Atlantic.

How many flights are there between Washington, D.C. Dulles Intl Airport and London Heathrow Airport per day?

Each day, there are between 7 and 8 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in London Heathrow Airport, with an average flight time of 7h 17m. The most common departure time is 22:00 and most flights take off at night. Each week, there are 55 flights. The most frequent day of departure is Saturday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Washington, D.C. Dulles Intl Airport and London Heathrow Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Washington Dulles Airport to London Heathrow Airport take?

A direct flight to London Heathrow Airport will take on average 7h 10m to travel the 3,664 miles flying distance from Washington Dulles Airport.

What’s the earliest departure time from Washington Dulles Airport to London Heathrow Airport?

Early birds can take the earliest flight from Washington, D.C. Dulles Intl Airport at 17:55 and will be landing in London Heathrow Airport at 06:15.

What’s the latest departure time from Washington Dulles Airport to London Heathrow Airport?

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport jets off at 22:50 and lands at 11:10.

Good to know - Cheap tickets from Washington Dulles Airport to London Heathrow Airport

Low season

January

High season

August

Cheapest flight

£177
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from Washington Dulles Airport to London Heathrow Airport

When to book flights from Dulles Intl to Heathrow

Are your dates flexible? Find out the best times to travel from Dulles Intl to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

FAQs for booking Washington Dulles Airport to London Heathrow Airport flights

  • What accessibility services are there at Dulles Intl Airport?

    To cater to travelers with limited mobility and disabilities, Dulles Airport offers a wide range of accessibility services. These include elevators with Braille signage and self-voicing announcements, wheelchair access, a pet relief area for service or companion dogs, public restrooms with disability access, and assisted security screenings.

  • Are there nonstop flights from Dulles Intl to London-Heathrow Airport?

    Passengers wishing to fly from Washington, DC, to London can get nonstop flights from several airlines, including Lufthansa. Other nonstop flights are operated by multiple airlines, although the tickets come at a higher price. Most flights operated by American Airlines, Finnair, Icelandair, Delta Air Lines, and Virgin Atlantic have one- or two-stop flights. Depending on the airline, you may board your connecting flight in Keflavik, Dallas, Chicago, Helsinki, Boston, or Atlanta.

  • Are there airport hotels at London-Heathrow Airport?

    There are hotels located right within Heathrow Airport. They include the Hilton Garden Inn Airport Hotel, situated right next to Terminal 2 and a few minutes walk to Terminal 3. Alternatively, you can choose to stay at the Aerotel London Heathrow situated near Terminal 2 and 3. Other hotels within a comfortable walking distance include the Novotel London Heathrow Airport T1 T2 and T3, Ibis Styles London Heathrow Airport, Radisson Blu Edwardian Heathrow Hotel, and more.

  • How can I get from Heathrow Airport to the London city center?

    You can get from London-Heathrow Airport to the city center by train. You can board a train from Heathrow Central Station, located about 5min from terminals 2 and 3. You can get train tickets at the automated ticketing machines or booking office at the station. Trains from the airport arrive in the downtown area at Paddington Station after about 15min.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport was £223 for a one-way ticket and £484 for a return.

  • Which airports will I be using when flying from Washington Dulles Airport to London Heathrow Airport?

    On your way to London Heathrow Airport, you’ll fly out from Washington, D.C. Dulles Intl. You’ll be landing at London Heathrow.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to London Heathrow Airport?

    Only American Airlines offers inflight Wi-Fi service on the Washington Dulles Airport to London Heathrow Airport flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to London Heathrow Airport?

    The Boeing 777 is the aircraft model that flies most regularly on the Washington Dulles Airport to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to London Heathrow Airport?

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

  • On which days can I fly direct from Washington Dulles Airport to London Heathrow Airport?

    There are direct flights from Washington Dulles Airport to London Heathrow Airport on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to London are KLM and Virgin Atlantic. With an average price for the route of £599 and an overall rating of 7.8, KLM is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £593 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to London Heathrow Airport?

    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 Washington Dulles Airport to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to London Heathrow Airport?

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

  • What is the Hacker Fare option on flights from Washington Dulles Airport to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to London Heathrow Airport?

    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 London Heathrow Airport from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Washington Dulles Airport to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Washington Dulles Airport? 25% of our users found flights on this route for £366 or less one-way and £611 or less round-trip.
  • You can get to Dulles International Airport (IAD) from downtown Washington, DC, by car, bus, or train. If you require quick access to the airport, we recommend taking the train. A train ticket goes for about $11 and is a great way to avoid traffic.
  • Do you have a flight departure and want to return your rental car to one of the rental car companies at Dulles Intl Airport (IAD)? Follow the "Rental Car Return" signs at the airport, which lead to Autopilot Dr. Here, you'll find the rental car parking lots. Your rental company's shuttle bus should take you to the terminal.
  • If you feel like relaxing after touching down in London, you can access VIP services from one of the Heathrow (LHR) lounges. They include the Plaza Premium Lounge in Terminal 4, which charges around £27.45 ($38), the Club Aspire Lounge in Terminal 3, which charges approximately £27.45 ($38), and the Sky Team Lounge in Terminal 4, which charges around £31.39 ($43.50).
  • Pet lovers can travel with their pets from Washington, DC. The airport has pet relief areas outside the terminal building, right after security, and another one inside the concourses. If you plan to travel with your pet in the cabin or send him as baggage, we recommend that you contact your airline in advance.
  • Washington, DC/London air route is popular among business travelers. London Heathrow Airport is located about 14 miles from London city, offering easy access to business-centric points of interest like the Royal Horticultural Halls and the Excel Business Expo Center.
See more tips

Prefer to fly direct from Washington Dulles Airport to London Heathrow Airport?

Find which airlines fly direct from Dulles Intl to Heathrow, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to London Heathrow

Monday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Tuesday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Wednesday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Thursday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Friday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Saturday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Sunday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

See more direct flights

Direct returns

London Heathrow to Washington, D.C. Dulles Intl

Monday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Tuesday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Wednesday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Thursday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Friday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Saturday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

Sunday

Aer Lingus, Air Canada, Air France, +13 more

Aer Lingus, Air Canada, +14 more

See more direct flights
See more direct flights

Top 5 airlines serving from Dulles Intl to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to London. 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 Dulles Intl to Heathrow? 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.
7.8
KLMOverall score based on 1598 reviews
7.8Boarding
7.2Entertainment
7.3Food
8.4Crew
7.6Comfort
Airline reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

8.0 ExcellentJacob Oluleke, Apr 2024LOS - AMS
Read more about KLM reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

no issues at all... Kudos to the food. This time was really really good

The food was ok. The crew seemed like they were cranky. I had one guy get mad at me for passing in between the storage area to get to the other toilet. I can understand if it's not allowed but reprimanding me like I'm a student saying "This is the last time!" was not appropriate. During my meal time, there was a French family around me. No problems there but when we usually have meals, they are supposed to put their chair in the upright position. These people did not do it and the steward did not tell them to raise their seat in the upright position. However, I was told to do so! So, me and another person next to me had to eat with the monitor almost touching our faces. Furthermore, a lady in front of me was putting her feet up and preventing another elder passenger from putting her seat back. To make it worse, she was continuously hitting her back into her seat, shaking my monitor while I was watching a movie. A crew member did speak to her about it but then she accused me of pushing her seat forward! The crew member gave me a death stare and told me to stop pushing the seat forward. I did not even touch her seat at all, if I did, she would know it. Her boyfriend also stood up and tried to push her seat even further past the maximum decline to no avail. None of these people were reprimanded but the steward, some bald guy, was extremely friendly with them and did not even try to instruct them to do anything until it was time to land. I resisted the urge to really argue with them because I would have obviously been seen as the aggressor (I have no idea why). I hardly said anything on this flight except "more wine please" and "sorry" if I bumped into someone accidentally. Overall, it was an annoying flight and I had to resist the urge to yell at the steward and the people he was overly friendly with. The happiest moment of this flight was leaving it.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

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

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff were fantastic friendly nice they came round and check we need anything else to eat or drink

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

they made me check my carryon. There was space in the overhead bins.

The Polaris experience is top notch. From departure lounge to arrival lounge. Everything was top notch. One of the best first class experience

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

EWR terminal C United Club is great. Flight and everything else mediocre

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

The crew were really great, but the 4 hour delay in small chunks was the worst.

Very bad , airplain had problem with engines , had to evacuate, had a delay on my trip for almost 4 hours , lost my rental car in london..

Another 35 min delay landing No apology no communication or acknowledgment about this

Try to humanize onboarding and take AI out. It's embarrassing and useless

Overall good experience. Polite crew. Good foodandentertainment. Seats are small and bit congested though.

I ended up buying (for $340) "extra space" seats because I my flying partner was given a STY boarding pass, leading me to conclude that she was on standby and that we had to buy seats on the flight. I later learned that the flight was not sold out and that we could have gotten on as usual. To be honest, I felt swindled.

I'm Canadian. I have the unfortunate experience of pretty not having the choice to fly with them. THEY ARE TERRIBLE.

The process overall was pretty seamless, and the crew were very friendly (especially Michael). Considering we booked expecting Lufthansa and the flight was operated by United, it was still a very good service and journey overall. The in-flight entertainment was great, with lots of quality options. One slight negative was that I had selected a vegetarian meal prior to flying, but received a vegan one. I think there should be more dietary options as it meant I missed out on some food that I would have preferred (and it seemed like the standard meals and snacks had a vegetarian option anyway). There was also a group of people who were moving around a lot and being generally disruptive at the quietest part of the flight, when the lights were off and most people were sleeping. I would have appreciated staff stepping in to encourage them to be mindful of others). Towards the end of the flight (which was very early in the morning in both time zones), the lights suddenly came on and breakfast was served. In my opinion, this was too early, and everyone was rudely awoken from sleep. After breakfast was cleared away, the lights went off again for about 45 minutes, allowing people to sleep some more. Then the lights came on again for landing. It seems like if they had served breakfast later, the lights on-lights off-lights on shenanigans could have been avoided, and people could have slept longer (and staff could have rested longer too).

You only get a chocolate square and small bottle of water.!

to be bussed around the airport, then have to sit on the plane for an hour whilst the plane was deiced not once, but twice, then to have to wait for a tug driver is unacceptable. The Captain was very good at communicating.

Terrible. This airline will cancel flights at very short notice.

United tried to bump me. We pay good money to get on the plane we are scheduled to ride in. To hell with United Airlines.

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Horrible seat allocation. Boarding was slow. Food was average and so was entertainment. The TV terminal didn't work and so had to use remote.

Lost one checked bag.and wasted 30min waiting and filing missing baggage report. Very unsatisfied.

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Cheapest flights to London from Washington, D.C. found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to London found on KAYAK in the last 72 hours.
22/10ter
1 stopIcelandair
18h 50mIAD-LHR
£177
23/7ter
1 stopIcelandair
18h 50mIAD-LHR
£178
3/10qui
1 stopIcelandair
10h 25mIAD-LHR
£179
21/5ter
1 stopLufthansa
24h 20mIAD-LHR
£272
22/9dom
directLufthansa
7h 15mIAD-LHR
£341
15/5qua
directVirgin Atlantic
7h 15mIAD-LHR
£353
18/8dom
directVirgin Atlantic
7h 15mIAD-LHR
£356
8/10ter
directBritish Airways
7h 20mIAD-LHR
£366
13/5seg
2 stopsUnited Airlines
18h 45mIAD-LHR
£368
13/5seg
2 stopsUnited Airlines
18h 50mIAD-LHR
£373

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Last minute flights from Dulles Intl to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to London that are departing in the next 10 days.
8/5qua
multi-stopIcelandair
18h 50mIAD-LHR
29/5qua
multi-stopIcelandair
26h 50mLHR-IAD
£497
8/5qua
multi-stopUnited Airlines
17h 14mIAD-LHR
22/5qua
multi-stopUnited Airlines
31h 30mLHR-IAD
£509
12/5dom
multi-stopUnited Airlines
17h 14mIAD-LHR
31/5sex
multi-stopUnited Airlines
15h 25mLHR-IAD
£511
8/5qua
directBritish Airways
7h 20mIAD-LHR
16/5qui
directBritish Airways
8h 05mLHR-IAD
£559
10/5sex
multi-stopBritish Airways
31h 53mIAD-LHR
6/6qui
multi-stopBritish Airways
13h 25mLHR-IAD
£581
9/5qui
multi-stopLufthansa
15h 05mIAD-LHR
23/5qui
multi-stopLufthansa
15h 55mLHR-IAD
£589
9/5qui
multi-stopLufthansa
12h 20mIAD-LHR
23/5qui
multi-stopLufthansa
15h 55mLHR-IAD
£602
8/5qua
multi-stopVirgin Atlantic
12h 56mIAD-LHR
12/5dom
multi-stopVirgin Atlantic
11h 55mLHR-IAD
£634
8/5qua
multi-stopVirgin Atlantic
19h 57mIAD-LHR
12/5dom
directVirgin Atlantic
7h 55mLHR-IAD
£640
8/5qua
multi-stopKLM
10h 06mIAD-LHR
12/5dom
multi-stopKLM
11h 55mLHR-IAD
£656

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Washington Dulles Airport - London Heathrow Airport Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Washington Dulles Airport

Cabin classes:

£5,003
£2,599
£1,301
£457