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Cheap flights from the United Kingdom to Washington, D.C. from £314

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

£386

One-way from

£314

Popular in

July

Cheapest in

February

Average price

£488

Good round-trip deal

£467 or less

Good one-way deal

£468 or less
9/10-12/10
  • 9/10-12/10
  • 2 total stops
  • 49h 57m total
  • United Kingdom to Washington, D.C.
Search Deals
2/11
  • 2/11
  • 2 total stops
  • 40h 13m total
  • United Kingdom to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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 18 September 2025.

Thu 9/1014:00LGW - BWI
1 stop27h 40mMultiple Airlines
Sun 12/1006:53BWI - LGW
1 stop22h 17mMultiple Airlines
Deal found 16/9£386
Thu 6/1114:00LGW - BWI
1 stop23h 50mMultiple Airlines
Wed 12/1106:45BWI - LGW
3 stops27h 20mMultiple Airlines
Deal found 16/9£388
Thu 9/1014:00LGW - BWI
1 stop27h 40mMultiple Airlines
Mon 13/1021:41BWI - LGW
1 stop31h 19mMultiple Airlines
Deal found 17/9£390
Wed 1/1014:00LGW - BWI
1 stop34h 47mMultiple Airlines
Sat 4/1021:39BWI - LGW
1 stop31h 31mMultiple Airlines
Deal found 17/9£391
Thu 25/908:40LHR - IAD
1 stop12h 35mUnited Airlines
Thu 2/1018:40IAD - LHR
Nonstop7h 15mUnited Airlines
Deal found 16/9£391
Thu 2/1006:50LHR - IAD
2 stops14h 20mAir Canada
Mon 6/1015:36IAD - LHR
1 stop11h 59mAir Canada
Deal found 17/9£392
Thu 23/1008:45LTN - IAD
1 stop15h 10mMultiple Airlines
Sun 26/1018:05IAD - LTN
1 stop10h 50mMultiple Airlines
Deal found 17/9£392
Thu 13/1121:20STN - IAD
2 stops26h 10mMultiple Airlines
Sun 30/1119:40IAD - STN
2 stops20h 15mMultiple Airlines
Deal found 16/9£392
Mon 27/1020:25LHR - DCA
2 stops30h 34mVirgin Atlantic
Fri 7/1119:35DCA - LHR
2 stops31h 15mVirgin Atlantic
Deal found 15/9£392
Thu 25/908:40LHR - IAD
1 stop12h 35mUnited Airlines
Sun 28/918:40IAD - LHR
Nonstop7h 15mUnited Airlines
Deal found 17/9£393
Sun 7/1210:40LGW - IAD
1 stop15h 20mTAP AIR PORTUGAL
Sun 14/1222:30IAD - LGW
1 stop12h 15mTAP AIR PORTUGAL
Deal found 17/9£393
Thu 2/1009:55LHR - DCA
2 stops17h 16mVirgin Atlantic
Sun 19/1020:40DCA - LHR
1 stop29h 05mVirgin Atlantic
Deal found 16/9£393

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 18 September 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

Tue 14/10

14:00-12:40

1 stop27h 40m

Baltimore/Washington

Wed 22/10

08:00-10:00

1 stop21h 00m

£386

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 9/10

14:00-12:40

1 stop27h 40m

Baltimore/Washington

Mon 13/10

21:41-10:00

1 stop31h 19m

£390

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 1/2

09:00-16:40

1 stop12h 40m

Washington, D.C. Dulles Intl

Mon 9/2

22:15-10:50

Nonstop7h 35m

£391

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 28/11

09:00-16:40

1 stop12h 40m

Washington, D.C. Dulles Intl

Fri 12/12

06:00-07:10

2 stops20h 10m

£391

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 31/10

09:00-17:40

1 stop12h 40m

Washington, D.C. Dulles Intl

Fri 7/11

18:20-06:40

Nonstop7h 20m

£391

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 13/11

21:20-18:30

2 stops26h 10m

Washington, D.C. Dulles Intl

Sun 30/11

19:40-20:55

2 stops20h 15m

£392

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 30/10

06:00-15:40

1 stop13h 40m

Washington, D.C. Dulles Intl

Wed 12/11

18:20-06:40

Nonstop7h 20m

£393

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 7/11

09:00-16:40

1 stop12h 40m

Washington, D.C. Dulles Intl

Mon 10/11

08:30-07:10

2 stops17h 40m

£393

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 10/11

13:45-16:40

1 stop31h 55m

Washington, D.C. Dulles Intl

Sun 23/11

17:33-09:10

1 stop10h 37m

£393

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 6/11

14:50-14:40

1 stop28h 50m

Washington, D.C. Dulles Intl

Wed 12/11

18:20-06:40

Nonstop7h 20m

£393

Flights are sorted by cheapest return flights first.

Deals found on 16/9

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 18 September 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 18 September 2025.

The most flights from GB0 to WAS are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

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 18 September 2025.
Check out reviews from past customers who have flown with Virgin Atlantic, Aer Lingus, andIcelandair from the United Kingdom to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.4
Good
664 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Aer Lingus
7.2
Good
1,277 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.0
Good
545 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
PLAY
7.0
Good
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,367 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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.

  • How long is the flight from United Kingdom to Washington, D.C.?

    For as low as £391, United Airlines can have you in Washington, D.C. from United Kingdom in 12h 40m. The distance between United Kingdom and Washington, D.C. is about 3664 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    £379 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Icelandair and Aer Lingus, with prices starting from £380 and £390, 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 Gatwick - Washington, D.C. Dulles Intl 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 KLM (90%), Air France (90%) and Delta (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 £1,276, our data shows the cheapest flight currently is £382. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £322 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
College Park
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
Gatwick to Dulles Intl flights
London City to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to Reagan-National flights
Stansted to Dulles Intl flights
Luton to Dulles Intl flights
London City to Reagan-National flights
Edinburgh to Dulles Intl flights
Manchester to Dulles Intl flights
Glasgow Intl to Dulles Intl flights
Manchester to Reagan-National flights
Edinburgh to Reagan-National flights
Newcastle upon Tyne to Dulles Intl flights
Glasgow Intl to Reagan-National flights
Newcastle upon Tyne to Reagan-National flights
Birmingham to Dulles Intl flights
Birmingham to Reagan-National flights
Leeds to Dulles Intl flights
Belfast Intl to Dulles Intl flights
Leeds to Reagan-National flights
Belfast City to Dulles Intl flights
Istanbul to Dulles Intl flights
Inverness to Dulles Intl flights
Frankfurt to Dulles Intl flights
Amsterdam to Dulles Intl flights
Southampton to Dulles Intl flights
Bruxelles-National to Dulles Intl flights
Dublin to Dulles Intl flights
Aberdeen to Dulles Intl flights
Cardiff to Dulles Intl flights
Bristol to Dulles Intl flights
Exeter to Dulles Intl flights
Grimsby to Dulles Intl flights
Grimsby to Reagan-National flights
Bristol to Reagan-National flights
Aberdeen to Reagan-National flights
Madrid to Dulles Intl flights
Norwich to Dulles Intl flights
Cardiff 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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£185Average£525FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£241Average£386FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£341Average£532FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£347Average£520FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
FinnairCheapest£359Average£643FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£359Average£665FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£369Average£617FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Aer LingusCheapest£392Average£703FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£392Average£663FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£419Average£542FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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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