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Washington, D.C.

$329+ Cheap flights from the United Kingdom to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
mai 4 — mai 111
dim. 5/4
dim. 5/11
1 adult, Economy
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Cheap flight deals from United Kingdom to Washington, D.C.

Keep the following information in mind while searching for United Kingdom to Washington, D.C. flight deals. Data was last updated avril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$542
(Mytrip)

One-way from

$329
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$710

Good round-trip deal

$730 or less

Good one-way deal

$668 or less
Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) flights.
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From United Kingdom to Washington, D.C. (WAS)
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One-way flight from United Kingdom to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 11% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from United Kingdom to Washington, D.C. (WAS).
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Price to beat on a one-way flight from United Kingdom to Washington, D.C. (WAS).
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Find flight deals from United Kingdom to Washington, D.C.

Cheapest flights from United Kingdom to Washington, D.C.
Explore the most affordable flight options available from United Kingdom to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 29, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/911:40 amSTN - BWI
1 stop11h 00mPLAY
sam. 5/106:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 4/29$542
This Ticket deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/53:40 pmLGW - BWI
1 stop32h 45mIcelandair
lun. 5/128:30 pmBWI - LGW
1 stop13h 05mIcelandair
Deal found 4/29$542
This Connections by easyJet deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/288:00 amLGW - BWI
1 stop13h 55mMultiple Airlines
jeu. 11/136:05 pmBWI - LGW
1 stop16h 30mMultiple Airlines
Deal found 4/29$545
This Ticket deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/59:25 pmLHR - BWI
1 stop27h 00mIcelandair
lun. 5/128:30 pmBWI - LHR
1 stop10h 25mIcelandair
Deal found 4/29$546
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/2010:35 pmSTN - BWI
2 stops25h 50mMultiple Airlines
mar. 5/278:30 pmBWI - STN
2 stops12h 50mMultiple Airlines
Deal found 4/29$572
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 11/17:35 amLHR - BWI
1 stop14h 20mMultiple Airlines
dim. 11/96:05 pmBWI - LHR
2 stops16h 55mMultiple Airlines
Deal found 4/29$619
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/1410:00 amLGW - IAD
1 stop13h 30mMultiple Airlines
dim. 8/1710:20 pmIAD - LGW
1 stop11h 50mMultiple Airlines
Deal found 4/28$628
This Gotogate deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/91:05 pmLHR - IAD
1 stop11h 15mIcelandair
lun. 5/128:30 pmIAD - LHR
1 stop10h 25mIcelandair
Deal found 4/28$630
This JetBlue deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/68:25 amLHR - DCA
1 stop12h 35mJetBlue
lun. 11/103:10 pmDCA - LHR
1 stop9h 45mJetBlue
Deal found 4/28$631
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/56:40 amLHR - IAD
1 stop18h 19mScandinavian Airlines
jeu. 9/2510:05 pmIAD - LHR
1 stop12h 55mScandinavian Airlines
Deal found 4/28$632
This ChecknFly deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/246:50 amLHR - IAD
1 stop11h 40mLufthansa
sam. 5/3110:11 pmIAD - LHR
1 stop32h 39mLufthansa
Deal found 4/28$636
This JetBlue deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/512:10 pmLGW - DCA
1 stop13h 41mJetBlue
sam. 9/276:55 pmDCA - LGW
1 stop9h 40mJetBlue
Deal found 4/28$638

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated avril 29, 2025.
Use the filters below to find and compare flights from the United Kingdom to Washington, D.C. that are best for you.

Fly from

United Kingdom

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonBaltimore

STN - BWI

STNBWI

London Stansted

ven. 5/9

11:40 am-5:40 pm

1 stop11h 00m

Baltimore/Washington

sam. 5/10

6:50 pm-10:40 am

1 stop10h 50m

$542

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

lun. 5/12

1:00 pm-7:31 am

2 stops23h 31m

Baltimore/Washington

mar. 7/15

2:59 pm-10:00 am

1 stop14h 01m

$558

LondonBaltimore

STN - BWI

STNBWI

London Stansted

mar. 5/20

10:35 pm-7:25 pm

2 stops25h 50m

Baltimore/Washington

mar. 5/27

8:30 pm-2:20 pm

2 stops12h 50m

$572

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

sam. 6/14

10:00 am-6:30 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

dim. 8/17

10:20 pm-3:10 pm

1 stop11h 50m

$628

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

ven. 5/9

1:05 pm-7:20 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

lun. 5/12

8:30 pm-11:55 am

1 stop10h 25m

$630

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

ven. 9/5

6:40 am-7:59 pm

1 stop18h 19m

Washington, D.C. Dulles Intl

jeu. 9/25

10:05 pm-4:00 pm

1 stop12h 55m

$632

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

jeu. 5/22

7:30 am-3:15 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

sam. 5/31

10:11 pm-9:35 am

1 stop30h 24m

$635

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

ven. 9/5

12:10 pm-8:51 pm

1 stop13h 41m

Washington, D.C. Reagan-National

sam. 9/27

6:55 pm-9:35 am

1 stop9h 40m

$638

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

ven. 9/5

8:25 am-4:13 pm

1 stop12h 48m

Washington, D.C. Reagan-National

jeu. 9/25

6:30 am-8:45 pm

1 stop9h 15m

$640

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

mer. 5/14

8:15 am-10:58 pm

1 stop19h 43m

Washington, D.C. Reagan-National

dim. 5/18

6:00 am-9:30 am

1 stop22h 30m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from United Kingdom with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Washington, D.C.

What is the cheapest month to book a flight from United Kingdom to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of $309). Flying from United Kingdom to Washington, D.C. in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to WAS?

Find hourly flight availability from United Kingdom to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated avril 29, 2025.

When flying from United Kingdom to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Washington, D.C.

Explore weekly flight availability from United Kingdom to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated avril 29, 2025.

The most flights from GB0 to WAS are scheduled on a Monday (27 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated avril 29, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from United Kingdom to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from United Kingdom to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from United Kingdom to Washington, D.C. are PLAY ($352), TAP AIR PORTUGAL ($445), and WestJet ($467).

  • What are the most popular routes from United Kingdom to Washington, D.C.?

    Most travelers choose London Heathrow - Washington, D.C. Dulles Intl, London Heathrow - Baltimore/Washington or London Heathrow - Washington, D.C. Reagan-National when deciding on the best route from United Kingdom to Washington, D.C..

  • What are the most reliable airlines from United Kingdom to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Washington, D.C. consider choosing United Airlines (92%), Air Canada (90%) or Austrian Airlines (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from United Kingdom to Washington, D.C.?

    On average you can expect to pay $1,589 for a flight from United Kingdom to Washington, D.C.. The cheapest flight overall is $484 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at $565.

  • Can I find deals for flights from United Kingdom to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Washington, D.C..

  • Can I find deals for business class flights from United Kingdom to Washington, D.C.?

    Yes. Cheapflights offers flight deals from United Kingdom to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of $309). Flying from United Kingdom to Washington, D.C. in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

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Alternative routes for United Kingdom to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Dulles Intl flights
Frankfurt to Dulles Intl flights
Charles de Gaulle to Dulles Intl flights
Amsterdam to Dulles Intl flights
Heathrow to Reagan-National flights
Madrid to Dulles Intl flights
Charles de Gaulle to Reagan-National flights
Leonardo da Vinci/Fiumicino to Dulles Intl flights
Gatwick to Dulles Intl flights
Gatwick to Reagan-National flights
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Orly to Dulles Intl flights
Frankfurt to Reagan-National flights
Bruxelles-National to Dulles Intl flights
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Stansted to Dulles Intl flights
Barcelona-El Prat to Dulles Intl flights
Leonardo da Vinci/Fiumicino to Reagan-National flights
Vicenza to Dulles Intl flights
Amsterdam to Reagan-National flights
Edinburgh to Dulles Intl flights
Geneva to Dulles Intl flights
Frederic Chopin to Reagan-National flights
Luton to Dulles Intl flights
Copenhagen to Dulles Intl flights
Bruxelles-National to Reagan-National flights
Athens to Dulles Intl flights
Lisbon to Dulles Intl flights
Manchester to Dulles Intl flights
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Vienna to Reagan-National flights
Duesseldorf Intl to Dulles Intl flights
Budapest to Dulles Intl flights
Istanbul to Reagan-National flights
Berlin to Reagan-National flights
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Dublin to Reagan-National flights
Malpensa to Dulles Intl flights
Malpensa to Reagan-National flights
Linate to Dulles Intl flights
Manchester to Reagan-National flights
Budapest to Reagan-National flights

Top 10 airlines flying from United Kingdom to Washington, D.C.

Discover the top 10 airlines that operate flights from United Kingdom to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated avril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$304Average$458FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$390Average$833FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$431Average$986FlexibilityNo cancel feeOn-time78%
IcelandairCheapest$486Average$945FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$564Average$814FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$583Average$969FlexibilityNo cancel feeOn-time69%
IberiaCheapest$586Average$1,021FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$593Average$858FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$595Average$852FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$619Average$829FlexibilityNo cancel feeOn-time71%

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