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IAD - LHR

$231 Find cheap flights from Washington Dulles Airport to London Heathrow Airport

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 10/8. 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
Tue 7/2
Tue 7/9

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 travelers have searched 42,335,261 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Dulles Intl to Heathrow currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 Dulles Intl to Heathrow

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Heathrow.

Recent one-way flight deals from Dulles Intl to Heathrow

Only flying one-way? Below are some of the best one-way flight deals from Dulles Intl to Heathrow found on KAYAK recently.

Recent last minute flight deals from Dulles Intl to Heathrow

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Dulles Intl to Heathrow.

Recent direct flight deals from Dulles Intl to Heathrow

The latest deals for direct flights from Dulles Intl to Heathrow so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Dulles Intl to Heathrow

Find recent round-trip train or bus tickets from Dulles Intl to Heathrow.

All round-trip flight deals to Heathrow

The cheapest plane tickets to Heathrow found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:15 pm - 9:40 pmIAD-LHR
23h 25m1 stop
8:30 pm - 3:25 pmLHR-IAD
23h 55m1 stop
$451Scandinavian Airlines
Find Deal
Tue, Sep 24 - Sun, Sep 29
5:15 pm - 9:40 pmIAD-LHR
23h 25m1 stop
8:30 pm - 4:40 pmLHR-IAD
24h 10m1 stop
$455Scandinavian Airlines
Find Deal
Thu, Oct 24 - Tue, Oct 29
5:15 pm - 9:40 pmIAD-LHR
23h 25m1 stop
6:40 am - 3:25 pmLHR-IAD
13h 45m1 stop
$456Scandinavian Airlines
Find Deal
Tue, Sep 24 - Fri, Oct 4
6:30 pm - 6:45 amIAD-LHR
7h 15mnonstop
8:40 am - 4:15 pmLHR-IAD
12h 35m1 stop
$531United Airlines
Find Deal
Tue, Oct 1 - Mon, Oct 7
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
9:00 am - 7:25 pmLHR-IAD
15h 25m1 stop
$534United Airlines
Find Deal
Wed, Sep 25 - Wed, Oct 23
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$548British Airways
Find Deal
Wed, Oct 2 - Tue, Oct 8
5:55 pm - 6:15 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$571British Airways
Find Deal
Sun, Aug 4 - Tue, Sep 24
5:29 pm - 2:25 pmIAD-LHR
15h 56m1 stop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$602American Airlines
Find Deal
Mon, Aug 12 - Thu, Aug 22
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
12:15 pm - 3:20 pmLHR-IAD
8h 05mnonstop
$603Lufthansa
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Mon, Aug 19 - Tue, Aug 27
9:14 am - 7:30 amIAD-LHR
17h 16m1 stop
6:15 am - 7:15 pmLHR-IAD
18h 00m1 stop
$630American Airlines
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Thu, Aug 22 - Fri, Aug 30
8:30 pm - 11:55 amIAD-LHR
10h 25m1 stop
$231Icelandair
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Tue, Oct 8
11:15 pm - 8:20 pmIAD-LHR
16h 05m1 stop
$234Icelandair
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Mon, Sep 23
10:15 pm - 10:30 amIAD-LHR
7h 15mnonstop
$397Virgin Atlantic
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Sun, Aug 18
10:15 pm - 10:30 amIAD-LHR
7h 15mnonstop
$402Virgin Atlantic
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Mon, Jul 8
5:55 pm - 6:15 amIAD-LHR
7h 20mnonstop
$404British Airways
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Sun, Sep 22
2:05 pm - 9:05 amIAD-LHR
14h 00m2 stops
$408American Airlines
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Tue, Oct 8
12:45 pm - 10:00 amIAD-LHR
16h 15m2 stops
$418United Airlines
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Sun, Jul 21
8:20 am - 9:35 amIAD-LHR
20h 15m2 stops
$424United Airlines
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Mon, Jul 22
9:24 am - 6:40 amIAD-LHR
16h 16m2 stops
$433American Airlines
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Wed, Jul 17
11:04 am - 8:00 amIAD-LHR
15h 56m2 stops
$522British Airways
Find Deal
Wed, Sep 11
6:50 pm - 6:30 pmIAD-LHR
18h 40m2 stops
7:40 am - 5:40 pmLHR-IAD
15h 00m1 stop
Mon, Jun 3 - Fri, Jun 7
5:15 pm - 9:40 pmIAD-LHR
23h 25m1 stop
8:30 pm - 3:25 pmLHR-IAD
23h 55m1 stop
$756Scandinavian Airlines
Find Deal
Wed, Jun 5 - Sun, Jun 16
8:30 pm - 8:20 pmIAD-LHR
18h 50m1 stop
9:25 pm - 7:15 pmLHR-IAD
26h 50m1 stop
$802Icelandair
Find Deal
Mon, Jun 3 - Wed, Jun 26
8:30 pm - 8:20 pmIAD-LHR
18h 50m1 stop
1:05 pm - 10:10 pmLHR-IAD
14h 05m1 stop
$806Icelandair
Find Deal
Mon, Jun 3 - Tue, Jun 18
10:25 pm - 5:45 pmIAD-LHR
14h 20m1 stop
6:00 am - 3:20 pmLHR-IAD
14h 20m1 stop
$862TAP AIR PORTUGAL
Find Deal
Mon, Jun 3 - Thu, Jun 13
10:25 pm - 10:55 pmIAD-LHR
19h 30m1 stop
7:50 pm - 3:20 pmLHR-IAD
24h 30m1 stop
$918TAP AIR PORTUGAL
Find Deal
Mon, Jun 3 - Wed, Jun 12
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
12:15 pm - 3:20 pmLHR-IAD
8h 05mnonstop
$1,083Lufthansa
Find Deal
Fri, Jun 7 - Mon, Jun 10
12:45 pm - 10:00 amIAD-LHR
16h 15m2 stops
8:40 am - 4:15 pmLHR-IAD
12h 35m1 stop
$1,171United Airlines
Find Deal
Mon, Jun 3 - Tue, Jun 18
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
6:50 am - 1:30 pmLHR-IAD
11h 40m1 stop
$1,174United Airlines
Find Deal
Wed, Jun 5 - Mon, Jun 10
6:30 pm - 6:45 amIAD-LHR
7h 15mnonstop
12:15 pm - 3:20 pmLHR-IAD
8h 05mnonstop
$1,183Lufthansa
Find Deal
Tue, Jun 4 - Mon, Jun 10
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$548British Airways
Find Deal
Wed, Oct 2 - Tue, Oct 8
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$549Finnair
Find Deal
Wed, Oct 2 - Fri, Oct 11
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
$550United Airlines
Find Deal
Wed, Nov 6 - Mon, Nov 11
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
4:40 pm - 7:45 pmLHR-IAD
8h 05mnonstop
$583Lufthansa
Find Deal
Mon, Aug 19 - Mon, Sep 2
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
12:15 pm - 3:45 pmLHR-IAD
8h 30mnonstop
$593American Airlines
Find Deal
Mon, Aug 26 - Fri, Jan 10
10:25 pm - 10:40 amIAD-LHR
7h 15mnonstop
12:15 pm - 3:20 pmLHR-IAD
8h 05mnonstop
$603United Airlines
Find Deal
Wed, Aug 14 - Tue, Aug 27
10:15 pm - 10:30 amIAD-LHR
7h 15mnonstop
5:30 pm - 8:25 pmLHR-IAD
7h 55mnonstop
$615Virgin Atlantic
Find Deal
Mon, Sep 30 - Sun, Oct 13
8:25 am - 8:50 pmIAD-LHR
7h 25mnonstop
7:10 am - 11:00 amLHR-IAD
8h 50mnonstop
$618Lufthansa
Find Deal
Sat, Nov 9 - Fri, Nov 15
6:25 pm - 6:55 amIAD-LHR
7h 30mnonstop
4:15 pm - 7:30 pmLHR-IAD
8h 15mnonstop
$622Virgin Atlantic
Find Deal
Tue, Nov 26 - Mon, Dec 2
5:55 pm - 6:15 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$643American Airlines
Find Deal
Sun, Sep 1 - Sat, Sep 14

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.
When flying from Washington Dulles Airport to London Heathrow Airport, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Thursdays and the most expensive ones on Tuesdays.

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 $652 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,093 and $944 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 27 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 ($231) and SWISS ($286). The cheapest round-trip tickets were found on Scandinavian Airlines ($451) and TAP AIR PORTUGAL ($500).

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 non-stop 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 nonstop 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 Virgin Atlantic at $518 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 10:00 pm and most flights take off at night. Each week, there are 55 flights. The most frequent day of departure is Thursday, 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?

The duration of a nonstop flight to London Heathrow Airport from Washington Dulles Airport is typically 7h 05m. The journey crosses a distance of 3,664 miles.

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 5:55 pm and will be landing in London Heathrow Airport at 6:15 am.

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 10:50 pm and lands at 11:10 am.

Good to know

Low season

January

High season

July

Cheapest flight

$231
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 21% increase in price.
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 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 Washington Dulles Airport to London Heathrow Airport flights

  • Is there long-term parking available at Dulles International Airport?

    Yes. There is a lot just across from the main terminal where you can park for about $29 a day. On the other side of the lot and adjacent to the main terminal are garages that charge about $21 a day and is a bit of a longer walk to the terminal. There is also an economy lot for around $14 off Rudder Road with 24/7 shuttle service to the terminal.

  • How do I only see flights that land in London at a specific time?

    If you need to be in London at a specific time of day, you can filter your KAYAK search results. There is a slide under the Times filter that you can set to when you want your flight from IAD to land in LHR. You can also narrow down the departure times.

  • Will I need a visa to fly into London?

    US citizens travelling from IAD to LHR, for leisure and some types of business, for six months or less do not need a visa. You may be asked to show proof of funds and travel, and your passport should be valid for at least the length of your stay.

  • Do the fares for flights to London from Washington DC include carry-on and check-in luggage?

    There are icons above the fares of your KAYAK search results that indicate how many bags, if any are included. You can add more by using the Fee assistance option, and the results will be recalculated. This allows you to budget your trip from IAD to LHR more accurately without any unexpected charges.

  • Can I rent a car at Heathrow International Airport?

    Yes. There are rental car desks in the main arrival areas after baggage claim / customs areas of Terminals 2, 3, 4, and 5. Many have extended hours. For example, Enterprise is open from 6 am to 11 pm every day, while SIXT is open from 7 am to 10 pm. Avis is open 24 hours a day in Terminals 2, 3, and 4 and from 4:45 am to 12 am in Terminal 5.

  • Are the flights to London from Washington DC eco-friendly?

    The average passenger emits about 3,254 lbs of CO2 on flights to LHR from IAD. You can sort your KAYAK results by CO2 to find flights with a smaller carbon footprint per passenger. For example, Aer Lingus flights to LHR stopping in Dublin can save you 45%, or 1,474 lbs, in CO2.

  • 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 $231 for a one-way ticket and $451 for a round-trip.

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

    Yes

  • 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 nonstop 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, Delta or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to London are Delta and Virgin Atlantic. With an average price for the route of $772 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 $788 and an overall rating of 7.6.

  • 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 travelers 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 round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and LHR 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 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

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $478 or less one-way and $734 or less round-trip.
  • Those colors in the drop-down calendar are there to help you find the best dates for your flight from IAD to LHR. The green days are the cheapest, yellow are in the middle, and red are the priciest. The key just below the calendar shows estimated prices.
  • If you need a moment of prayer or quiet contemplation before your flight to Heathrow, you can find a serene sanctuary at the interfaith chapel in Concourse A across from Gate A32 at Dulles.
  • There are several concierge services available at Heathrow International Airport, so someone can meet you when your flight from IAD lands and help you through to your journey beyond the airport. The services and prices vary, and you can check them out on LHR’s website.
  • 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 non-stop 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.

Nonstop 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

Nonstop 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.
7.6
Virgin AtlanticOverall score based on 720 reviews
7.7Entertainment
7.1Food
7.4Comfort
8.3Crew
7.8Boarding
Airline reviews

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

6.0 GoodSonia, Apr 2024LAX - LHR
Read more about Virgin Atlantic reviews

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

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

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

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

The seats are much too narrow and the arm rests are hard and awkwardly high, resulting in shoulder cramps. I am an average sized person ( definitely not overweight). The seats are a similar size to car seats with the added discomfort of incorporating hard plastic arm rests, that force average height individuals (I'm 5 ft 7 (f)) to hold their arms uncomfortably for several hours. The seats are much too close to the ones in front and behind making it extremely difficult to allow fellow passengers to get out, especially when the seat in front is declined. The leg room also necessitates knees banging into passengers backs for the entire flight. This used to be a quality airline who now offer mediocre service for premium cost, coupled with charging exorbitant prices for basic needs, like a seat, or luggage. Blatant and unabashed gouging of clients.

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

Not your fault…..didn’t get my drink until just before landing….bumpy flight.

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.!

Very bed boarding, there was overbooked and make a lot of problems and noises

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

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

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.
10/8Tue
1 stopIcelandair
10h 25mIAD-LHR
$231
9/23Mon
1 stopIcelandair
16h 05mIAD-LHR
$234
8/18Sun
nonstopVirgin Atlantic
7h 15mIAD-LHR
$397
7/8Mon
nonstopVirgin Atlantic
7h 15mIAD-LHR
$402
9/22Sun
nonstopBritish Airways
7h 20mIAD-LHR
$404
10/8Tue
2 stopsAmerican Airlines
14h 00mIAD-LHR
$408
7/21Sun
2 stopsUnited Airlines
16h 15mIAD-LHR
$418
7/22Mon
2 stopsUnited Airlines
20h 15mIAD-LHR
$424
7/17Wed
2 stopsAmerican Airlines
16h 16mIAD-LHR
$433
9/11Wed
2 stopsBritish Airways
15h 56mIAD-LHR
$522

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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.
6/3Mon
multi-stop
18h 40mIAD-LHR
6/7Fri
multi-stop
15h 00mLHR-IAD
$736
6/5Wed
multi-stopScandinavian Airlines
23h 25mIAD-LHR
6/16Sun
multi-stopScandinavian Airlines
23h 55mLHR-IAD
$756
6/3Mon
multi-stopIcelandair
18h 50mIAD-LHR
6/26Wed
multi-stopIcelandair
26h 50mLHR-IAD
$802
6/3Mon
multi-stopIcelandair
18h 50mIAD-LHR
6/18Tue
multi-stopIcelandair
14h 05mLHR-IAD
$806
6/3Mon
multi-stopTAP AIR PORTUGAL
14h 20mIAD-LHR
6/13Thu
multi-stopTAP AIR PORTUGAL
14h 20mLHR-IAD
$862
6/3Mon
multi-stopTAP AIR PORTUGAL
19h 30mIAD-LHR
6/12Wed
multi-stopTAP AIR PORTUGAL
24h 30mLHR-IAD
$918
6/7Fri
nonstopLufthansa
7h 15mIAD-LHR
6/10Mon
nonstopLufthansa
8h 05mLHR-IAD
$1,083
6/3Mon
multi-stopUnited Airlines
16h 15mIAD-LHR
6/18Tue
multi-stopUnited Airlines
12h 35mLHR-IAD
$1,171
6/5Wed
nonstopUnited Airlines
7h 15mIAD-LHR
6/10Mon
multi-stopUnited Airlines
11h 40mLHR-IAD
$1,174
6/4Tue
nonstopLufthansa
7h 15mIAD-LHR
6/10Mon
nonstopLufthansa
8h 05mLHR-IAD
$1,183

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Washington Dulles Airport - London Heathrow Airport Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Washington Dulles Airport

Cabin classes:

$4,026
$2,776
$1,665
$592