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Cheap flights from the United Kingdom to Washington, D.C. from £222

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
6 Apr — 13 Apr1
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 1 April 2025.

Round-trip from

£355

One-way from

£222

Popular in

July

Cheapest in

February

Average price

£539

Good round-trip deal

£543 or less

Good one-way deal

£631 or less
PLAY
  • PLAY
  • 5/9-11/9
  • 2 total stops
  • 21h 50m total
  • United Kingdom to Washington, D.C.
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29/4
  • 29/4
  • 2 total stops
  • 31h 46m total
  • United Kingdom to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
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).
Search Deals
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 1 April 2025.

Fri 5/911:40STN - BWI
1 stop11h 00mPLAY
Thu 11/918:50BWI - STN
1 stop10h 50mPLAY
Deal found 31/3£355
Mon 12/506:25STN - BWI
2 stops16h 15mMultiple Airlines
Wed 21/518:50BWI - STN
2 stops14h 35mMultiple Airlines
Deal found 31/3£366
Tue 29/408:00LGW - BWI
2 stops14h 40mMultiple Airlines
Tue 6/518:50BWI - LGW
2 stops18h 30mMultiple Airlines
Deal found 31/3£371
Mon 3/1107:35LHR - BWI
1 stop14h 20mMultiple Airlines
Sun 9/1118:05BWI - LHR
2 stops18h 35mMultiple Airlines
Deal found 31/3£374
Fri 19/912:10LGW - DCA
1 stop26h 34mIcelandair
Mon 29/913:45DCA - LGW
1 stop14h 50mIcelandair
Deal found 31/3£435
Thu 24/415:40LGW - IAD
1 stop32h 40mIcelandair
Wed 30/420:30IAD - LGW
1 stop10h 15mIcelandair
Deal found 31/3£435
Thu 24/421:25LHR - BWI
1 stop27h 00mIcelandair
Wed 30/420:30BWI - LHR
1 stop10h 25mIcelandair
Deal found 1/4£435
Thu 24/415:40LGW - BWI
1 stop32h 45mIcelandair
Wed 30/420:30BWI - LGW
1 stop10h 15mIcelandair
Deal found 1/4£435
Fri 19/906:40LHR - IAD
1 stop18h 19mScandinavian Airlines
Mon 29/922:05IAD - LHR
1 stop12h 55mScandinavian Airlines
Deal found 31/3£440
Thu 24/411:05LGW - IAD
2 stops13h 15mMultiple Airlines
Wed 30/420:30IAD - LGW
2 stops15h 35mMultiple Airlines
Deal found 31/3£443
Wed 30/411:55LHR - DCA
1 stop16h 04mJetBlue
Wed 7/515:15DCA - LHR
1 stop10h 15mJetBlue
Deal found 31/3£447
Sat 31/518:00LHR - IAD
1 stop18h 19mLufthansa
Mon 16/622:20IAD - LHR
1 stop13h 45mLufthansa
Deal found 31/3£447

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 1 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

STN - BWI

STNBWI

London Stansted

Fri 5/9

11:40-17:40

1 stop11h 00m

Baltimore/Washington

Thu 11/9

18:50-10:40

1 stop10h 50m

£355

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Mon 12/5

06:25-17:40

2 stops16h 15m

Baltimore/Washington

Wed 21/5

18:50-14:25

2 stops14h 35m

£366

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 29/4

08:00-17:40

2 stops14h 40m

Baltimore/Washington

Tue 6/5

18:50-18:20

2 stops18h 30m

£371

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 29/4

06:40-17:40

2 stops16h 00m

Baltimore/Washington

Tue 6/5

18:50-21:40

2 stops21h 50m

£400

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 19/9

12:10-09:44

1 stop26h 34m

Washington, D.C. Reagan-National

Mon 29/9

13:45-09:35

1 stop14h 50m

£435

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 24/4

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Wed 30/4

20:30-11:45

1 stop10h 15m

£435

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Thu 24/4

21:25-19:25

1 stop27h 00m

Baltimore/Washington

Wed 30/4

20:30-11:55

1 stop10h 25m

£435

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 24/4

15:40-19:25

1 stop32h 45m

Baltimore/Washington

Wed 30/4

20:30-11:45

1 stop10h 15m

£435

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 19/9

06:40-19:59

1 stop18h 19m

Washington, D.C. Dulles Intl

Mon 29/9

22:05-16:00

1 stop12h 55m

£440

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 30/4

11:55-22:59

1 stop16h 04m

Washington, D.C. Reagan-National

Wed 7/5

15:15-06:30

1 stop10h 15m

£447

Flights are sorted by cheapest return flights first.

Deals found on 1/4

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, February is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £565). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £946). 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 1 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 1 April 2025.

The most flights from GB0 to WAS are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 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 1 April 2025.
Read through reviews of airlines operating flights from United Kingdom to Washington, D.C., such as Delta, KLM and Air Transat. 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.
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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
7,899 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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
1,321 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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
1,267 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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
1,572 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

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?

    £231 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 WorldTicket, with prices starting from £332 and £419, respectively.

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

    When deciding which route to take from United Kingdom to Washington, D.C. consider London Heathrow - Washington, D.C. Dulles Intl, London Heathrow - Baltimore/Washington or London Heathrow - Washington, D.C. Reagan-National as they are the most popular.

  • 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 American Airlines (57%), Aer Lingus (57%) and Finnair (57%).

  • 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 £1,544, our data shows the cheapest flight currently is £498. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £320 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, February is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £565). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £946). 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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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
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
London City to Dulles Intl flights
Gatwick to Reagan-National flights
Stansted to Dulles Intl flights
London City to Reagan-National flights
Manchester to Dulles Intl flights
Luton to Dulles Intl flights
Manchester to Reagan-National flights
Edinburgh to Dulles Intl flights
Birmingham to Dulles Intl flights
Birmingham to Reagan-National flights
Newcastle upon Tyne to Dulles Intl flights
Edinburgh to Reagan-National flights
Bruxelles-National to Dulles Intl flights
Glasgow Intl to Dulles Intl flights
Dublin to Dulles Intl flights
Bristol to Dulles Intl flights
Newcastle upon Tyne to Reagan-National flights
Istanbul to Dulles Intl flights
Glasgow Intl to Reagan-National flights
Leeds to Dulles Intl flights
Cardiff to Dulles Intl flights
Frankfurt to Dulles Intl flights
Bristol to Reagan-National flights
Cardiff to Reagan-National flights
Aberdeen to Dulles Intl flights
Amsterdam to Dulles Intl flights
Southampton to Reagan-National flights
Southampton to Dulles Intl flights
Madrid to Dulles Intl flights
Aberdeen to Reagan-National flights
Belfast Intl to Dulles Intl flights
Grimsby to Reagan-National flights
Grimsby to Dulles Intl flights
Leeds 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 858,174 searches. Data last updated 1 April 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£259Average£484FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£331Average£791FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£361Average£581FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£364Average£604FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£396Average£743FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
JetBlueCheapest£396Average£593FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Aer LingusCheapest£435Average£719FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£446Average£586FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£457Average£726FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£465Average£724FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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