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Cheap flights from the United Kingdom to Washington, D.C. from £257

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£416

One-way from

£257

Popular in

July

Cheapest in

February

Average price

£529

Good round-trip deal

£498 or less

Good one-way deal

£583 or less
12/5-15/7
  • 12/5-15/7
  • 3 total stops
  • 37h 32m total
  • United Kingdom to Washington, D.C.
7/5
  • 7/5
  • 1 total stop
  • 26h 46m total
  • United Kingdom to Washington, D.C.
Highest demand for flights based on searches. 11% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from United Kingdom to Washington, D.C. (WAS).
Price to beat on a one-way flight from United Kingdom to Washington, D.C. (WAS).

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 30 April 2025.

Fri 9/511:40STN - BWI
1 stop11h 00mPLAY
Sat 10/518:50BWI - STN
1 stop10h 50mPLAY
Deal found 29/4£404
Mon 5/515:40LGW - BWI
1 stop32h 45mIcelandair
Mon 12/520:30BWI - LGW
1 stop13h 05mIcelandair
Deal found 29/4£404
Tue 28/1008:00LGW - BWI
1 stop13h 55mMultiple Airlines
Thu 13/1118:05BWI - LGW
1 stop16h 30mMultiple Airlines
Deal found 29/4£406
Mon 5/521:25LHR - BWI
1 stop27h 00mIcelandair
Mon 12/520:30BWI - LHR
1 stop10h 25mIcelandair
Deal found 29/4£407
Tue 20/522:35STN - BWI
2 stops25h 50mMultiple Airlines
Tue 27/520:30BWI - STN
2 stops12h 50mMultiple Airlines
Deal found 29/4£427
Sat 1/1107:35LHR - BWI
1 stop14h 20mMultiple Airlines
Sun 9/1118:05BWI - LHR
2 stops16h 55mMultiple Airlines
Deal found 29/4£462
Mon 5/521:25LHR - IAD
1 stop26h 55mIcelandair
Mon 12/520:30IAD - LHR
1 stop18h 50mIcelandair
Deal found 29/4£474
Sat 10/515:50LHR - IAD
1 stop21h 05mLufthansa
Sat 31/522:23IAD - LHR
1 stop26h 32mLufthansa
Deal found 29/4£476
Fri 13/610:00LGW - IAD
1 stop16h 12mMultiple Airlines
Fri 20/621:57IAD - LGW
1 stop28h 03mMultiple Airlines
Deal found 29/4£477
Tue 6/518:10LTN - IAD
2 stops26h 10mMultiple Airlines
Tue 13/520:30IAD - LTN
2 stops21h 25mMultiple Airlines
Deal found 29/4£477
Thu 8/513:00LGW - IAD
1 stop11h 20mIcelandair
Wed 14/520:30IAD - LGW
1 stop13h 10mIcelandair
Deal found 29/4£477
Sat 1/1108:25LHR - DCA
1 stop30h 16mIcelandair
Sun 9/1106:59DCA - LHR
1 stop32h 46mIcelandair
Deal found 29/4£477

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 30 April 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

LGW - BWI

LGWBWI

London Gatwick

Mon 12/5

13:00-07:31

2 stops23h 31m

Baltimore/Washington

Tue 15/7

14:59-10:00

1 stop14h 01m

£416

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 20/5

22:35-19:25

2 stops25h 50m

Baltimore/Washington

Tue 27/5

20:30-14:20

2 stops12h 50m

£427

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Mon 25/8

11:40-17:40

1 stop11h 00m

Baltimore/Washington

Thu 18/9

18:50-10:40

1 stop10h 50m

£439

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 10/5

15:50-07:55

1 stop21h 05m

Washington, D.C. Dulles Intl

Sat 31/5

22:23-05:55

1 stop26h 32m

£476

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 13/6

10:00-21:12

1 stop16h 12m

Washington, D.C. Dulles Intl

Fri 20/6

21:57-07:00

1 stop28h 03m

£477

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 28/5

12:10-20:00

1 stop12h 50m

Washington, D.C. Reagan-National

Fri 4/7

15:35-09:35

1 stop13h 00m

£480

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 24/5

09:30-10:19

1 stop29h 49m

Washington, D.C. Reagan-National

Sat 31/5

07:00-05:55

1 stop17h 55m

£480

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 8/10

11:55-18:44

1 stop11h 49m

Washington, D.C. Reagan-National

Mon 13/10

06:30-20:45

1 stop9h 15m

£481

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 28/9

10:20-19:59

1 stop14h 39m

Washington, D.C. Dulles Intl

Wed 8/10

22:05-18:30

1 stop15h 25m

£482

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 29/5

12:10-08:00

1 stop24h 50m

Washington, D.C. Reagan-National

Thu 5/6

07:00-09:35

1 stop21h 35m

£485

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 return 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, January is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £599). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £947). 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 30 April 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 30 April 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 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 30 April 2025.
Read through reviews of airlines operating flights from United Kingdom to Washington, D.C., such as Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8.0
Very Good

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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?

    £272 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on TAP AIR PORTUGAL and WestJet, with prices starting from £329 and £346, respectively.

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

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

    The top 3 most reliable airlines when flying from United Kingdom to Washington, D.C. are United Airlines (92%), Air Canada (90%) and Austrian Airlines (90%).

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

    While on average a flight from United Kingdom to Washington, D.C. is generally £1,223, our data shows the cheapest flight currently is £348. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £420 for that flight.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £599). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £947). 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

Travelling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

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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 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£249Average£461FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£319Average£762FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£351Average£580FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£357Average£558FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£368Average£678FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£382Average£716FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
JetBlueCheapest£382Average£587FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£413Average£563FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£424Average£696FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£440Average£701FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to Washington, D.C.?

Cheapflights helps you search for flights from United Kingdom to Washington, D.C. via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Washington, D.C.?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Washington, D.C. for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to Washington, D.C. with no change fees?

Need flexible booking options for your flight to Washington, D.C. from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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