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LHR - IAD

Find cheap flights from London Heathrow Airport to Washington Dulles Airport from $294

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Dulles Intl departing on 5/8. 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
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
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 45,119,101 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Dulles Intl 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
7:50 pm - 3:20 pmLHR-IAD
24h 30m1 stop
10:20 pm - 6:50 pmIAD-LHR
15h 30m1 stop
$561TAP AIR PORTUGAL
Find Deal
Mon, Aug 26 - Sun, Sep 8
8:00 am - 6:25 pmLHR-IAD
15h 25m1 stop
5:40 pm - 10:00 pmIAD-LHR
23h 20m1 stop
$565TAP AIR PORTUGAL
Find Deal
Fri, Oct 11 - Sun, Oct 20
6:00 am - 8:45 pmLHR-IAD
19h 45m1 stop
8:20 pm - 3:35 pmIAD-LHR
14h 15m1 stop
$570TAP AIR PORTUGAL
Find Deal
Fri, Sep 20 - Sat, Oct 5
6:40 am - 3:25 pmLHR-IAD
13h 45m1 stop
5:15 pm - 9:40 pmIAD-LHR
23h 25m1 stop
$635Scandinavian Airlines
Find Deal
Mon, May 6 - Mon, Jun 3
8:30 pm - 3:25 pmLHR-IAD
23h 55m1 stop
5:15 pm - 5:40 pmIAD-LHR
19h 25m1 stop
$648Scandinavian Airlines
Find Deal
Thu, May 23 - Mon, Jun 3
6:50 am - 1:30 pmLHR-IAD
11h 40m1 stop
10:17 pm - 7:15 amIAD-LHR
27h 58m1 stop
$700Lufthansa
Find Deal
Mon, May 13 - Sat, May 18
12:15 pm - 3:20 pmLHR-IAD
8h 05mnonstop
10:17 pm - 7:15 amIAD-LHR
27h 58m1 stop
$712Lufthansa
Find Deal
Mon, May 13 - Sat, May 18
6:10 pm - 7:42 pmLHR-IAD
30h 32m2 stops
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
$735American Airlines
Find Deal
Mon, May 6 - Mon, May 13
6:10 pm - 7:42 pmLHR-IAD
30h 32m2 stops
5:02 am - 7:30 amIAD-LHR
21h 28m1 stop
$738American Airlines
Find Deal
Mon, May 6 - Mon, May 13
9:30 am - 4:05 pmLHR-IAD
11h 35m1 stop
12:30 pm - 10:00 amIAD-LHR
16h 30m2 stops
$769United Airlines
Find Deal
Tue, May 7 - Tue, May 14

Flights from Heathrow to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Heathrow to Dulles Intl 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 London Heathrow Airport to Washington Dulles Airport?

The average price of all flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
For London Heathrow Airport to Washington Dulles Airport, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington Dulles Airport back to London Heathrow Airport, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Heathrow Airport to Washington, D.C. Dulles Intl 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 London Heathrow Airport to Washington, D.C. Dulles Intl Airport is September, where tickets cost $625 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $798 and $776 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Heathrow Airport to Washington, D.C. Dulles Intl 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 London Heathrow Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting London Heathrow Airport to Washington Dulles Airport were found on TAP AIR PORTUGAL ($561) and Scandinavian Airlines ($635). TAP AIR PORTUGAL proposed the cheapest one-way flight at $487.

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

British Airways connects London Heathrow Airport to Washington Dulles 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 non-stop between London Heathrow Airport and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport.
There are 3 airlines that fly nonstop from London Heathrow Airport to Washington, D.C. Dulles Intl Airport. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at $531 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 London Heathrow Airport and Washington, D.C. Dulles Intl Airport per day?

Each day, there are between 7 and 8 nonstop flights that take off from London Heathrow Airport and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 8h 03m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 55 flights. The most frequent day of departure is Tuesday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between London Heathrow Airport and Washington, D.C. Dulles Intl 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 3 cabin class options for the route. These are 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 London Heathrow Airport to Washington Dulles Airport take?

Direct flights cover the 3,664 miles separating London Heathrow Airport to Washington Dulles Airport in about 7h 55m.

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

Early birds can take the earliest flight from London Heathrow Airport at 12:15 pm and will be landing in Washington, D.C. Dulles Intl Airport at 3:20 pm.

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

If you prefer to fly at night, the latest flight from London Heathrow Airport to Washington, D.C. Dulles Intl Airport jets off at 5:35 pm and lands at 8:35 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$294
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from London Heathrow Airport to Washington Dulles Airport

When to book flights from Heathrow to Dulles Intl

Are your dates flexible? Find out the best times to travel from Heathrow to Dulles Intl 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.

FAQs for booking London Heathrow Airport to Washington Dulles Airport flights

  • Can I find accommodation at Dulles Airport?

    You can’t find long-stay accommodation at Dulles Airport, however, there are plenty of hotels in the vicinity where you can make a reservation. Embassy Suites Dulles Airport, the Westin Washington Dulles Airport, and the Hilton Washington Dulles International Airport are three options very close to the airport that offers free round-trip shuttle transfers.

  • Where can I exchange currency at Dulles Airport?

    International Currency Exchange (ICE) has a desk at Gate 32 Concourse A/B as well as at International Arrivals near the baggage reclaim hall. You can also find ICE counters at Gates C8/C12 on Concourse C and at Gate D18 on Concourse D. These offer currency exchange, money transfers, and other services.

  • Does Dulles Airport have a car hire centre?

    Yes, it does. You’ll need a shuttle transfer to the car hire centre at Dulles Airport, which makes stops at Curb 2C or 2D (from Baggage Reclaim, go down the ramp to Doors 2 and 4). Many of the providers, including Enterprise Rent a Car, Avis/Budget, and Hertz, use community transport, so be sure to enquire before boarding.

  • What other cities are reachable from Dulles Airport?

    Dulles Airport serves the Baltimore–Washington metro area as well as portions of the state of Virginia. From there you can reach quite a few cities like Baltimore (38 miles north), Fredericksburg, VA (53 miles south), or Annapolis (31 miles east of the US capital).

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Washington, D.C. Dulles Intl Airport was $294 for a one-way ticket and $561 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Washington Dulles Airport.

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

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

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

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

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

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

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

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

  • Which is the best airline for flights from London to Washington, D.C., United Airlines or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from London to Washington, D.C. are United Airlines and Scandinavian Airlines. With an average price for the route of $879 and an overall rating of 7.4, United Airlines is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $658 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from London Heathrow Airport 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 Heathrow Airport to Washington Dulles Airport?

    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 Dulles Airport with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and IAD can sometimes prove cheaper using this method.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $797 or less one-way and $866 or less round-trip.
  • British Airways, Virgin Atlantic, and Lufthansa are among several airlines offering direct flight service from London Heathrow Airport (LHR) to Dulles International Airport (IAD) in Washington, DC. British Airways and Virgin Atlantic have operational hubs at London Heathrow and their inbound flights to Dulles Airport use Concourse A/B.
  • London Heathrow Airport has good options if you choose to park your car while travelling to Washington, DC. Short-stay, valet parking and a meet-and-greet are all choices close to the airport terminals, while long-stay, business parking, and POD parking require a free shuttle bus to connect you with your respective terminal. Reserve a space online to save on daily rates.
  • If you need to relax before departure, London Heathrow Airport provides a couple of lounges for complimentary food and beverages, in addition to a spa where you can receive a massage or beauty treatment. Club Aspire Lounge has a location in Terminal 5, while Plaza Premium Lounge offers hospitality at Terminals 2 and 5. Be Relax Spa has two locations at Terminal 5A and 5B.
  • Bypass the crowds at London Heathrow Airport security screening checkpoints with a fast-track security pass, which you can purchase online for about £12.50 per person. The pass gives you access to a dedicated lane at each terminal building so you reach the airside concourses in less time.
  • Passengers travelling with children at London Heathrow Airport should know that kids in your company aged under 15 can travel free aboard the Heathrow Express. Baby changing facilities can be found landside (before security) and airside (after security) in each terminal, and you can find Stay & Play Areas at Terminals 2–5. There’s also a Kids Eat Free programme hosted by several airport restaurants.
See more tips

Prefer to fly non-stop from London Heathrow Airport to Washington Dulles Airport?

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

Nonstop departures

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

Nonstop returns

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
See more direct flights

Top 5 airlines serving from Heathrow to Dulles Intl

 
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 Heathrow to Dulles Intl? 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.
7.7
Virgin AtlanticOverall score based on 751 reviews
7.1food
7.4comfort
8.3crew
7.8boarding
7.7entertainment
Airline reviews

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 .

8.0 ExcellentAnonymous, Apr 2024JFK - EDI
Read more about Virgin Atlantic reviews

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.

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

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.

Tai-City to Atlanta :Lots of legroom on the flight. No interaction from the staff at all on the plane. They only attended to the First Class passengers. There was no entertainment. Security I was body scanned even though I hadn't set off an alarm, my father-in-law in his 80s, was stopped and subjected to a through body search, told that they would have to place their hands in intimate places. There were several border guards present, and as we walked off we could hear the TWA officer talk about the procedure as if he was training. My father-in-law was a little upset about the whole process. A kind explanation that training was taking place would have been more acceptable, and it felt dehumanizing to him. Atlanta to London: Check in was difficult we had been unable to do this online for 2 of the family members on the same booking both in their mid to late-80s. No seats had been allocated for them and we were all travelling Premium Economy. After several phone calls to the booking agent and conversations with Delta staff at TriCites airport, we were told that seats would be allocated at the gate in Atlanta. When we arrived at Atlanta, and spoke to a member of the boarding staff at the gate, he was curt and repeated back exactly what we had just told him, that only one of us was checked in. I explained that we had been unable to check-in online for the 2 family members (I had tried twice). He again repeated back that we needed to check-in. As we were in transit, I was at a loss at what he wanted us to do, but he kept repeating that we needed to do this. I asked where we should do this. No answer. In fact all he did throughout was look at his screen. He told us that there were no seats in Premium Economy, and that he could offer my parents-in-law 'two seats at the back'. I asked if he meant at the back of Premium Economy, and he replied, 'No, at the back of the plane'. At this point, myself and my father-in-law pointed out that they had paid for Premium Economy tickets and expected seats there. He never took his eyes off the screen once. Then he hit a button and it printed out two boarding passes for my parents-in-law. The seats were directly across from my seat. He had gone from saying there were no seats to somehow finding two together. No explanation, no eye contact, nothing. The flight: As we boarded, our first introduction to the flight was the stewardess at the entrance addressing a passenger with an annoyed and loud voice about a bag that belonged to them. That was not promising. The seats were good, and so were all the accessories. The food, etc.: we had flown with Virgin on our outward journey and I could not fault it. The service and food was excellent, the stewards very helpful, offering additional drinks and snacks. The toilets were more accessible than Delta, which were in the economy area and were told in no uncertain terms that we should not use the First Class toilets, even though they were much closer to our section of the plane. We had a menu for both flights, yet when I asked for the chicken dish on Delta, I was told that there was none left and that there was another chicken dish with mashed potatoes and that 'it was fine'. This was almost pushed on me before I could answer. I was sitting 3 rows from the front of the section, so I was surprised that they had already run out. I repeated that I would like the chicken dish on the menu, and asked whether she would be able to get one from her colleague who was serving in the other aisle. The stewardess replied 'No, that's not how it works!' It always has on previous flights, so I was a bit confused. I accepted that I would have to opt for the pasta option (no choice), but was a little perturbed by her response. Minutes later she returns and hands me the chicken dish I had originally asked for. I had already started eating the other one, but was told curtly that I could have both. This was the same stewardess who was shouting at a passenger as we boarded the plane. The food was very poor in the end, nowhere near as good as Virgin's. Unlike Virgin, there was no starter, no bread roll, just a main and a brownie served in a cardboard container. Virgin had provided real china and glass. Unlike Virgin, they did not return to ask if we wanted more drinks, and there was no tea or coffee served after the meal. The breakfast that was served later was equally poor and inedible, apart from the fruit. At the time, the stewardess, a different one, completely walked past my mother-in-law and did not offer her a hot drink. Both my parents-in-law are in their mid to late 80s, they have been world travellers in their time and had decided that this would be the last flight that they ever take. They have health problems, including memory issues. I feel that overall the journey back to London was pretty unpleasant for them especially, and that they were treated badly, especially by the ground staff. We have lived on two continents and are used to long haul flights, and I have to say that this is up there in the worst flight category. Bearing in mind that we had paid extra money expecting comfort and additional attention, it was extremely disappointing. I would fly Virgin again, but never Delta. The two flights were incomparable.

Lots of legroom on the flight. No interaction from the staff at all on the plane. They only attended to the First Class passengers. There was no entertainment. Security I was body scanned even though I hadn't set off an alarm, my father-in-law in his 80s, was stopped and subjected to a through body search, told that they would have to place their hands in intimate places. There were several border guards present, and as we walked off we could hear the TWA officer talk about the procedure as if he was training. My father-in-law was a little upset about the whole process. A kind explanation would have been more acceptable, and it felt dehumanizing to him.

Needed a 6 hour lay over in Atlanta. How can this be avoided ?

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

They should. Heck planes more often not when they are suppose to be leaving causing delays

Thankfully not a full flight so although my headphone jack wasn’t working 100% on my window seat, I was able to move to the aisle seat. Food was fine, nothing great but tasty enough. Crew were friendly and made enough rounds. Always have a decent experience with Aer Lingus

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

Customs is always a challenge. The customs officials were real humans, which was nice-not robots programmed on angry 😊. If you’re in a hurry to get through you’ll be stressed out. Allow yourselves plenty of time and it will be a stress free experience.

I got rerouted to another flight/city because the original flight was late and I would not have made my connection. I had to wait an additional five hours (no compensation) for the new flight which was also delayed because the computer was not working. Arrived at my final destination after nearly 20 hours of travel only to discover that my baggage had not arrived with me. Two days later and still waiting for my baggage. Customer service has been incredibly unhelpful and even hung up on me because I dared to ask for them to have someone call me when my bag arrived at the airport. No one apologized to me for what I experienced and they were dismissive of the fact that I have absolutely no clothes or toiletries. Absolutely awful, disorganized and stressful experience. Am dreading the return flight.

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

It was a short flight, no real service (which is okay). Very bumpy because of weather.

I'm Canaadian. I hate Air Canada. I used to give them a pass on their international service. No longer, They suck across the board now! Old planes, exhausted staff bad food and shitty entertainment. Your seats need reupholstered! Start with that...

Good experience. Food was great and passengers helped rearrange seats so our family could be seated together

Crew was rowdy and loud just hanging out in the rear of the plane instead of assisting passengers during boarding. During the flight the crew mostly hung out in the rear of the plane being obnoxious to a point of disturbance.

Great flight. Left on time, not very crowded. Quiet and the right temperature.

No eye patches , socks given out for overnight flight! The snack on the short haul was a cube of chocolate! The seat was uncomfortable for a long haul - not enough cushioning!

Excellent service by united air staff. Very helpful, understanding and do friendly.

I paid a lot of money for seat selection and was miserable for flight duration

Lufthansa lost our luggage. After a lot of chasing on our part we got it back. The main problem is that there was no office in Bogota to help us outside of flighttimes. The customer service phone lines had no data on our luggage. I think Lufthansa need to invest in managing communications over lost luggage or this will end with everyone taking more luggage out of hold.

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

All was good. The headphones they supply are of poor quality. The food is good but too much dairy.

Seating space was crowded and I am a very small woman.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Book cheap flights from London to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Washington, D.C. found on KAYAK in the last 72 hours.
5/8Wed
1 stop
14h 45mLHR-IAD
$294
5/16Thu
1 stop
25h 15mLHR-IAD
$299
5/7Tue
1 stop
25h 15mLHR-IAD
$302
9/23Mon
2 stops
32h 10mLHR-IAD
$308
5/8Wed
1 stop
14h 45mLHR-IAD
$314
10/10Thu
1 stopTAP AIR PORTUGAL
12h 20mLHR-IAD
$487
9/27Fri
1 stopIcelandair
11h 10mLHR-IAD
$490
9/4Wed
1 stopTAP AIR PORTUGAL
14h 15mLHR-IAD
$523
7/11Thu
1 stopIcelandair
26h 50mLHR-IAD
$531
6/26Wed
1 stopIcelandair
26h 50mLHR-IAD
$546

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Last minute flights from Heathrow to Dulles Intl

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 London to Washington, D.C. that are departing in the next 10 days.
4/25Thu
multi-stop
25h 15mLHR-IAD
4/28Sun
multi-stop
18h 40mIAD-LHR
$603
4/28Sun
multi-stop
36h 05mLHR-IAD
5/4Sat
multi-stop
14h 40mIAD-LHR
$633
4/25Thu
multi-stop
25h 15mLHR-IAD
4/28Sun
multi-stop
15h 05mIAD-LHR
$657
4/28Sun
multi-stop
15h 15mLHR-IAD
5/4Sat
multi-stop
14h 40mIAD-LHR
$690
4/25Thu
multi-stopAer Lingus
13h 55mLHR-IAD
4/30Tue
multi-stopAer Lingus
10h 55mIAD-LHR
$768
4/27Sat
multi-stopLufthansa
31h 10mLHR-IAD
5/29Wed
nonstopLufthansa
7h 15mIAD-LHR
$879
4/27Sat
multi-stopUnited Airlines
35h 00mLHR-IAD
5/3Fri
multi-stopUnited Airlines
26h 32mIAD-LHR
$896
4/27Sat
multi-stopUnited Airlines
35h 48mLHR-IAD
5/4Sat
multi-stopUnited Airlines
29h 37mIAD-LHR
$897
4/29Mon
multi-stopLufthansa
34h 17mLHR-IAD
5/4Sat
multi-stopLufthansa
35h 20mIAD-LHR
$942
4/26Fri
multi-stopBritish Airways
16h 44mLHR-IAD
5/8Wed
nonstopBritish Airways
7h 20mIAD-LHR
$979

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London Heathrow Airport - Washington Dulles Airport Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - London Heathrow Airport

Cabin classes:

$2,684
$1,324
$718