$353 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 5/19. 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, 0 bags

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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

Sat, May 30 - Sun, May 31
United Airlines Logo
2:10 pm - 7:44 am
LHR
-
IAD
22h 34m
1 stop
United Airlines Logo
12:35 pm - 5:55 am
IAD
-
LHR
12h 20m
1 stop
$572United Airlines
Wed, May 13 - Wed, Jul 8
United Airlines Logo
4:40 pm - 8:15 pm
LHR
-
IAD
8h 35mnonstop
United Airlines Logo
6:33 am - 9:25 pm
IAD
-
LHR
9h 52m
1 stop
$575United Airlines
Tue, Oct 6 - Tue, Oct 13
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
$575Icelandair
Tue, Sep 29 - Tue, Oct 6
Lufthansa Logo
9:15 am - 8:00 pm
LCY
-
IAD
15h 45m
1 stop
Lufthansa Logo
5:55 pm - 5:55 pm
IAD
-
LCY
19h 00m
1 stop
$703Lufthansa
Tue, Sep 29 - Tue, Oct 6
Lufthansa Logo
9:15 am - 8:00 pm
LCY
-
IAD
15h 45m
1 stop
Lufthansa Logo
3:25 pm - 5:55 pm
IAD
-
LCY
21h 30m
1 stop
$704Lufthansa
Mon, Jun 15 - Tue, Jun 23
Virgin Atlantic Logo
9:20 am - 3:35 pm
LCY
-
IAD
11h 15m
1 stop
Virgin Atlantic Logo
5:40 pm - 9:30 am
IAD
-
LCY
10h 50m
1 stop
$719Virgin Atlantic
Wed, May 20 - Tue, Jun 9
Aer Lingus Logo
8:10 am - 3:45 pm
BHX
-
IAD
12h 35m
1 stop
Aer Lingus Logo
9:05 pm - 6:10 pm
IAD
-
BHX
16h 05m
1 stop
$728Aer Lingus
Fri, Aug 7 - Tue, Aug 25
Virgin Atlantic Logo
7:45 am - 3:35 pm
LCY
-
IAD
12h 50m
1 stop
Virgin Atlantic Logo
5:40 pm - 8:50 am
IAD
-
LCY
10h 10m
1 stop
$730Virgin Atlantic
Mon, May 25 - Mon, Jun 1
Aer Lingus Logo
8:10 am - 3:45 pm
BHX
-
IAD
12h 35m
1 stop
Aer Lingus Logo
9:00 pm - 7:55 pm
IAD
-
BHX
17h 55m
1 stop
$760Aer Lingus
Mon, May 25 - Mon, Jun 1
British Airways Logo
8:45 am - 3:45 pm
LBA
-
IAD
12h 00m
1 stop
British Airways Logo
7:20 pm - 8:35 pm
IAD
-
LBA
20h 15m
2 stops
$880British Airways
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?

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 Edinburgh, at $572 return. The most popular connection is from Los Angeles to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $268 in the last 3 days.

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

The average price of all round-trip flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Wednesday where round-trip tickets can be as cheap as $759. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $905 on average.

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 September, where tickets cost $646 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 $813 and $811 respectively. For one-way flights, the best month to travel is February with an average price of $704.

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

The average price for all round-trip flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the afternoon, when round-trip flights cost $796 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is $816.

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 $740 round-trip, from Edinburgh $1,103 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 6 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$353
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Edinburgh 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 Edinburgh, at $572 return. The most popular connection is from Los Angeles to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $268 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 $886. The cheapest price found on KAYAK in the last 2 weeks cost $670 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 $971
  • 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

 
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.
7.4
United AirlinesOverall score based on 9677 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

8.0 ExcellentAnonymous, Apr 2026
DEN - IAD
Read more United Airlines reviews

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Seating and zone. The minor I went with didn’t even seat close to me

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

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

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

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

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

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Economy seats a bit small but other than that it was all good.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

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.

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

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Oxon Hill
Martinsburg
Owings Mills
Charles Town
Greenbelt
Glen Burnie
Edgewood
Ellicott City
Colonial Beach
Pikesville
Camp Springs
Hunt Valley
Lutherville Timonium
Westminster

Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.