$412 Find Cheap Flights from United Kingdom to Washington Dulles Airport - Compare and Save

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Cheap Flights from the United Kingdom to Dulles Intl

 
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

Sun, Feb 28 - Sun, Mar 7
Virgin Atlantic Logo
6:30 am - 3:45 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
14h 15m1 stop Amsterdam Schiphol
Virgin Atlantic Logo
6:55 pm - 7:20 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 25mnonstop
$545Virgin Atlantic
Sun, Feb 28 - Sun, Mar 7
Virgin Atlantic Logo
8:40 am - 3:45 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
12h 05m1 stop Amsterdam Schiphol
Virgin Atlantic Logo
10:05 am - 9:00 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
17h 55m1 stop Atlanta Hartsfield-Jackson
$552Virgin Atlantic
Thu, Feb 18 - Thu, Mar 4
British Airways Logo
4:25 pm - 7:55 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
British Airways Logo
9:45 pm - 10:00 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 15mnonstop
$559British Airways
Wed, Jan 13 - Wed, Jan 20
British Airways Logo
12:15 pm - 3:40 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
8h 25mnonstop
British Airways Logo
6:05 pm - 6:15 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 10mnonstop
$559British Airways
Tue, Oct 6 - Wed, Oct 14
United Airlines Logo
7:00 am - 2:15 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
12h 15m1 stop Geneva Geneve-Cointrin
United Airlines Logo
8:33 am - 6:30 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
16h 57m2 stops Newark Montreal Pierre Elliott Trudeau Intl
$559United Airlines
Fri, Feb 12 - Sun, Feb 14
United Airlines Logo
7:30 am - 2:35 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
12h 05m1 stop Frankfurt am Main
United Airlines Logo
8:15 am - 7:10 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
17h 55m2 stops Newark Montreal Pierre Elliott Trudeau Intl
$559United Airlines
Sat, Mar 6 - Sun, Mar 14
SWISS Logo
6:40 pm - 3:30 pmLGW  London Gatwick-IAD Washington, D.C. Dulles Intl
25h 50m1 stop Zurich
SWISS Logo
9:10 pm - 5:50 pmIAD  Washington, D.C. Dulles Intl-LGW London Gatwick
16h 40m1 stop Zurich
$559SWISS
Thu, Nov 12 - Mon, Nov 30
Multiple Airlines Logo
9:00 am - 8:10 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
16h 10m2 stops Zurich Toronto Pearson Intl
Multiple Airlines Logo
9:55 am - 7:10 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
16h 15m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$559Multiple Airlines
Wed, Oct 7 - Tue, Oct 13
Air France Logo
3:50 pm - 7:15 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
8h 25mnonstop
Air France Logo
10:05 pm - 10:40 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 35mnonstop
$560Air France
Wed, Oct 14 - Fri, Nov 6
Air France Logo
3:50 pm - 7:15 pmLHR  London Heathrow-IAD Washington, D.C. Dulles Intl
8h 25mnonstop
Air France Logo
7:30 pm - 7:55 amIAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 25mnonstop
$560Air France
Booking Insights

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?

In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Glasgow, at $545 return. The most popular connection is from London to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $545 in the last 5 days.

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 Wednesday where round-trip tickets can be as cheap as $751. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $862 on average.

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

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is February, where tickets cost $675 on average for return flights. On the other hand, the most expensive months are July and May, where the average cost of tickets from the United Kingdom is $814 and $808 respectively. For one-way flights, the best month to travel is November with an average price of $660.

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 in the evening, when round-trip flights cost $766 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $805.

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 $593 round-trip, from Edinburgh $1,509 round-trip.

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

To get a below average price, you should book around 3 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

January

Cheapest flight

$412
Best time to beat the crowds with an average 11% drop in price.
Flight from Glasgow 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 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Glasgow, at $545 return. The most popular connection is from London to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $545 in the last 5 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 $698. The cheapest price found on KAYAK in the last 2 weeks cost $469 and departed from London Heathrow Airport.

  • 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.

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 $1,086
  • 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.

Reviews of the top 5 airlines serving from the United Kingdom to Dulles Intl

 
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.
7.4
United AirlinesOverall score based on 10214 reviews
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.7Food
Airline reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

4.0 OkayJohn, Sep 2026
Read more United Airlines reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

Just having a little bit more legroom would've been nice.

This is related to my second leg of the flight, from Washington DC to SFO. I understand things happen, but I got home at 3 am for a 12:59 am landing. I live 10 min from the airport. Bridge breaks when a few rows of the plane are off? Maintenance didn’t catch that?

Bad check in experience. Dirty ancient aircraft. Truly awful food and this in Business/ First class.

Left late after one day delay. Even after we were called to board we stood in line for 30 minutes. Seemed disorganized.

My flight was canceled and we had to beg for united to find us another way home - we were rerouted to Toronto but they never booked us on the final leg back to DC. We had to stay overnight in Toronto, we're now waiting for our flight home and just found out we're on standby and not guaranteed a seat. So yeah, not a great experience with united

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

I was seated to an oversized overweight person that spread over to my seat. His shoulder overlapped my seat very uncomfortable.

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

My seat 3G did not go down fully and the buttons were not working properly

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

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

Security area in terminal 3 needs to be made much nicer. Less claustrophobic and use of glass and big ceilings wouldhelp

accomodating check in staff, friendly flight crew ( a crew member was speaking tactlessly and was overfamiliar with passengers

Seats need to be updated. Allowance needs to be made for dinner service at an alternative time

The crew should demonstrate flexibility by moving a screaming infant to its own seat with 1 parent

If I could fly Virgin Atlantic airlines to every place, I need to go, I would. Leaving Heathrow through the special virgin air entrance, security is completely white glove service. I love this airline. From ticketing agents to flight staff everyone tries to make it a wonderful & happy flight experience. I wish other airlines copied the positive culture of Virgin Airlines.

The boarding time for this flight was ridiculous, longest in all my time flying. There was a problem with the original plane so it was switched at the last minute. Not a good substitution. We were delayed in departing. The bathrooms for economy were not adequate. The crew were pleasant but not present in the economy section, in an ~ 8hr flight only twice did they come through offering water, easy to get very dehydrated. I had to go and ask every hour for more water. The seats were cramped, and I have no idea what they did to the coffee but it was undrinkable. The food, was disgusting, utterly inedible, I am stunned by the lack of care and quality with the inflight service, very disappointing, I had expected better from Aer Lingus.

I was not admitted to the flight!!! i need a refund for this.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

We were very satisfied and would fly with Aer Lingus again in the future.

Very good except for the boarding process which was more hectic than it should have been

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.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

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.

The entertainment system was not working, they tried restarting it couple of times but it did not fix it. We were told to contact Lufthansa costumer service after the flight for some kind of reimbursement. When costumer service was contacted I was told no reimbursement for entertainment system malfunction per policy.

I was never able to use this flight. I booked my flight through KAYAK, using cheapfaresflights, and the agency did not book the ticket correctly. When I went to check in for my flight in Rome, my details had changed. My name was incorrect , and the itinerary was not what I had paid for. I was unable to board the flight and I had to purchase a second ticket at considerable expense. Unfortunately, no one at KAYAK or Cheapfaresflights was able to help me. They both shifted the blame on United Airlines, United Airlines was able to provide me a full detail that the error occurred on the travel agencies side. I consider this fraud and will pursue it further.

Cancelled 90 min AFTER Departure! We had to deplane and wait another hour plus for the flight to be shown as cancelled for the customer service team. There were many many angry customers.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Boarding was a zoo. London ground crew was useless. Poor communication regarding where to line up. We were group 2, and everyone was jammed in together. Ground crew didn’t seem to care.

I have a walker I need it to get from the plane to customs and baggage claim. It had a huge orange tag on it saying it should be given to me as I got off the plane. It was not and the flight staff didn’t know where it was—both on my flight to London and on the return. In It was very frustrating

Based on my wife's damaged condition, BA very kindly upgraded us from cattle to business class. MUCH appreciated!! One of these days, as it gains more experience, BA MAY learn how to depart on time (with over 30 years experience with BA, no flight has EVER managed to leave on time), Once airborne, the entertainment was ever so very pedestrian. But the flight was uneventful and the cabin crew's service was superb. And whichever driver landed the aircraft had obviously done it before. But BA unfortunately is learning from that scuzzy airline Delta. Delta is ALWAYS stunned when one of its aircraft actually turns up anywhere and is NEVER ready to receive it -- even when it turns up where and more or less when it is supposed to, NOT an example worthy of emulation.

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

It was good. Couldn’t Check in online and select seats

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

Waited 3.25 hours in plane only to have the flight cancelled.

Traveling to a place near Dulles Intl?

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