$289 Find Cheap Flights from United Kingdom to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 8/30. 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
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
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Cheap Flights from the United Kingdom to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United Kingdom 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from the United Kingdom to Dulles Intl

Mon, Sep 8 - Mon, Sep 29
 Logo
8:40 am - 4:15 pmLHR-IAD
12h 35m1 stop
 Logo
5:15 pm - 11:45 amIAD-LHR
13h 30m1 stop
Mon, Sep 8 - Mon, Sep 29
Lufthansa Logo
4:40 pm - 7:55 pmLHR-IAD
8h 15mnonstop
Lufthansa Logo
6:40 pm - 6:55 amIAD-LHR
7h 15mnonstop
$416Lufthansa
Find Deal
Wed, Nov 26 - Wed, Dec 3
British Airways Logo
1:05 pm - 7:45 pmEDI-IAD
11h 40m1 stop
British Airways Logo
6:15 pm - 9:10 amIAD-EDI
9h 55m1 stop
$571British Airways
Find Deal
Mon, Aug 25 - Thu, Sep 11
Virgin Atlantic Logo
11:30 am - 7:15 pmLHR-IAD
12h 45m1 stop
Virgin Atlantic Logo
5:50 pm - 6:20 amIAD-LHR
7h 30mnonstop
$578Virgin Atlantic
Find Deal
Mon, Aug 25 - Thu, Sep 11
British Airways Logo
12:45 pm - 3:55 pmLHR-IAD
8h 10mnonstop
British Airways Logo
5:50 pm - 6:15 amIAD-LHR
7h 25mnonstop
$580British Airways
Find Deal
Tue, Sep 9 - Tue, Sep 30
Virgin Atlantic Logo
6:30 am - 3:35 pmLHR-IAD
14h 05m1 stop
Virgin Atlantic Logo
5:50 pm - 6:20 amIAD-LHR
7h 30mnonstop
$581Virgin Atlantic
Find Deal
Sat, Jul 19 - Sun, Jul 20
United Airlines Logo
8:30 am - 9:37 amLHR-IAD
30h 07m1 stop
United Airlines Logo
5:31 pm - 10:10 amIAD-LHR
11h 39m1 stop
$668United Airlines
Find Deal
Sat, Sep 27 - Tue, Oct 7
United Airlines Logo
11:50 am - 9:12 pmMAN-IAD
14h 22m2 stops
United Airlines Logo
5:40 pm - 9:55 amIAD-MAN
11h 15m1 stop
$713United Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31
Aer Lingus Logo
8:45 am - 3:50 pmLBA-IAD
12h 05m1 stop
Aer Lingus Logo
5:20 pm - 3:30 pmIAD-LBA
17h 10m1 stop
$770Aer Lingus
Find Deal
Mon, Sep 1 - Wed, Sep 3
Aer Lingus Logo
9:25 am - 3:50 pmMAN-IAD
11h 25m1 stop
Aer Lingus Logo
9:00 pm - 1:50 pmIAD-MAN
11h 50m1 stop
$783Aer Lingus
Find Deal
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KAYAK's insights & trends for flights to Dulles Intl

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

What is the cheapest flight to Washington Dulles Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from London, at $406 return. The most popular connection is from London to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $406 in the last 3 days.

What is the cheapest month to fly 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 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 to Washington, D.C. Dulles Intl Airport is March, where tickets cost $678 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from the United Kingdom is $918 and $902 respectively. For one-way flights, the best month to travel is February with an average price of $759.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From London Heathrow Airport $771 round-trip, from Edinburgh $837 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 week.

To get a below average price, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$289
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from London Gatwick Airport to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How do I get to Ronald Reagan Washington Airport from Dulles International Airport?

    Ronald Reagan Washington National Airport (DCA) is located at a distance of 26.7 miles from Dulles International Airport. You can expect the journey by car to take you approximately 30min via VA-2673 and I-66 E. Alternatively, you can expect public transport to take 1h 10min. Catch the Silver Line on the Washington Metro, where a ticket will cost you approximately $2.50 (£1.75).

  • Where can I stay near Dulles International Airport?

    If you’re looking for a place to stay in close proximity to Dulles International Airport, the Washington Dulles Airport Marriott is a great option. Only 0.7 miles from the airport, this 4-star accommodation is good value for money. It’s also only 6 miles from Herndon Centennial Golf Course.

  • What is the quickest way to get to the White House from Dulles International Airport?

    The quickest route to the White House will take approximately 32min by car. Pick up a taxi from the taxi rank outside Dulles International Airport or hire a vehicle from the companies on offer. The 26.7-mile journey will take you via the VA-267 E and the I-66 E.

  • How do I get to the city centre from Dulles International Airport?

    There are two main forms of transport to reach Washington city centre. The 27.3-mile journey will take you approximately 33min by car. Alternatively, you can catch a bus and expect the journey to take approximately 1h. Passengers looking to use public transport should expect to pay an approximate price of $7.50 (£5.30).

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from London, at $406 return. The most popular connection is from London to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $406 in the last 3 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    Central Washington, D.C. is 22 miles away from Washington, D.C. Dulles Intl Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $840. The cheapest price found on KAYAK in the last 2 weeks cost $567 and departed from London Heathrow Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Tuesday where round-trip tickets can be as cheap as $845. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $997 on average.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally at night, when round-trip flights cost $743 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is $893.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 2,880 direct flights from within United Kingdom to Washington, D.C. Dulles Intl Airport. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From Edinburgh $1,305
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.
  • Washington Dulles Airport Station is the closest train station to Dulles International Airport (IAD). You can expect the walk from the terminal to take only 4min.
  • At Dulles International Airport you can find transport options such as the Metrobus and various taxis. If you’re looking to save some money, the Metrorail Silver Line and the Silver Line Express Bus are your best options.
  • There are a variety of ground and taxi services available from Washington Dulles Airport that you can find by downloading a company's app. They all offer pick-up and ground transportation and are extremely easy to use. Alternatively, you can use the 24h Washington Flyer Taxi Service.
  • Student tours and birthday parties are available to book for children looking to explore Washington Dulles International Airport like they’ve never seen before. Tickets are offered on a first-come, first-served basis and are a great experience.
  • Those wanting to experience a direct flight from London to Washington Dulles International Airport can expect the journey to take approximately 7h and 55min.
  • Those looking to park at Washington Dulles International Airport can expect to find a variety of parking options on offer. There are over 24,000 spaces and a valet service is available to those using the airport, as well as garages and economy parking lots.
  • Dulles International Airport is home to just one terminal building, but the amenities aren’t lacking. You can find features such as exchange counters, ATMs, and a large duty-free experience.

Top 5 airlines serving from the United Kingdom to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
8.0
DeltaOverall score based on 7946 reviews
7.9Entertainment
8.2Boarding
7.3Food
8.5Crew
7.9Comfort
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

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

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

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

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

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

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

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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