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Cheap flights from the United Kingdom to Washington, D.C. from £250

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
30 May — 6 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Washington, D.C.

Enter your travel dates to find the best prices.

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 2026.

Fri 20/1111:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Wed 25/1119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 29/4£422
Fri 21/811:45
LHR
-
IAD
1 stop12h 31m
Delta
Mon 21/919:50
IAD
-
LHR
1 stop12h 25m
Delta
Deal found 27/4£423
Fri 21/810:45
LHR
-
DCA
1 stop13h 33m
Delta
Mon 21/910:00
DCA
-
LHR
1 stop15h 25m
Delta
Deal found 27/4£423
Sat 30/514:10
LHR
-
IAD
1 stop22h 34m
United Airlines
Sun 31/512:35
IAD
-
LHR
1 stop12h 20m
United Airlines
Deal found 28/4£424
Tue 6/1013:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Tue 13/1020:30
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 27/4£424
Wed 13/516:40
LHR
-
IAD
Nonstop8h 35m
United Airlines
Wed 8/706:33
IAD
-
LHR
1 stop9h 52m
United Airlines
Deal found 28/4£426
Tue 6/1015:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Tue 13/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 27/4£426
Sun 30/809:20
LHR
-
IAD
1 stop14h 13m
Delta
Sat 12/916:00
IAD
-
LHR
1 stop14h 20m
Delta
Deal found 28/4£427
Thu 20/812:35
LHR
-
IAD
Nonstop8h 20m
British Airways
Mon 21/917:45
IAD
-
LHR
Nonstop7h 35m
British Airways
Deal found 27/4£428
Sat 21/1111:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Thu 26/1119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 29/4£428
Fri 15/515:20
LHR
-
IAD
1 stop13h 05m
United Airlines
Thu 9/718:30
IAD
-
LHR
Nonstop7h 25m
United Airlines
Deal found 28/4£429
Thu 12/1111:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 15/1119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 26/4£429

Find 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 2026.

Round-trip from

£423

One-way from

£250

Popular in

July

Cheapest in

February

Average price

£527

Good round-trip deal

£498 or less

Good one-way deal

£546 or less
Delta
  • Delta
  • 21/8-21/9
  • 2 total stops
  • 24h 56m total
  • United Kingdom to Washington, D.C.
Search Deals
19/5
  • 19/5
  • 2 total stops
  • 52h 47m total
  • United Kingdom to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£45 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
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).
Search Deals

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 2026.
Use the filters below to find and compare flights from the United Kingdom to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 2/6

12:45-22:15

2 stops14h 30m

Baltimore/Washington

Tue 9/6

23:20-00:10

2 stops19h 50m

£499

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 1/6

09:55-15:35

1 stop10h 40m

Washington, D.C. Dulles Intl

Wed 10/6

22:55-11:20

Nonstop7h 25m

£521

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 15/6

08:15-15:45

1 stop12h 30m

Washington, D.C. Dulles Intl

Mon 22/6

21:00-12:45

1 stop10h 45m

£524

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 11/6

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 15/6

22:55-11:20

Nonstop7h 25m

£528

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 1/6

12:20-21:44

1 stop14h 24m

Washington, D.C. Reagan-National

Mon 8/6

14:55-09:35

1 stop13h 40m

£530

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 15/9

16:25-19:40

Nonstop8h 15m

Washington, D.C. Dulles Intl

Tue 22/9

21:30-09:50

Nonstop7h 20m

£536

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 15/9

09:30-15:40

1 stop11h 10m

Washington, D.C. Reagan-National

Tue 22/9

06:00-20:40

1 stop9h 40m

£539

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 1/9

14:00-17:15

Nonstop8h 15m

Baltimore/Washington

Tue 22/9

18:09-09:25

1 stop10h 16m

£539

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 23/6

10:35-19:35

1 stop14h 00m

Washington, D.C. Dulles Intl

Thu 9/7

18:15-09:25

1 stop10h 10m

£540
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 26/6

17:55-20:55

Nonstop8h 00m

Washington, D.C. Dulles Intl

Tue 30/6

22:55-11:20

Nonstop7h 25m

£542

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

How far ahead should I book a flight from United Kingdom to Washington, D.C.?

The best time to book flights from United Kingdom to Washington, D.C. is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £489). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £656). 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 2026.

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 2026.

The most flights from GB0 to WAS are scheduled on a Thursday (28 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How often are flights from the United Kingdom to Washington, D.C. delayed?

About 18% of weekly flights between United Kingdom and Washington, D.C. have experienced delays in the past year, with the average delay time being 126 minutes.

What is the most punctual flight time for the United Kingdom to Washington, D.C. flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Washington, D.C. flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 11% of flights being delayed.

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 2026.
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
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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
688 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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
7.3
Good
1,538 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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
646 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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!
Lufthansa
6.8
Okay
7,964 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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
7,937 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Overall

7.4

Comfort

7.3

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 £521, Virgin Atlantic can have you in Washington, D.C. from United Kingdom in 10h 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?

    £345 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 JetBlue and Aer Lingus, with prices starting from £349 and £359, 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 Air Canada (87%), Austrian Airlines (87%) and Copa Airlines (87%).

  • 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 £1,001, our data shows the cheapest flight currently is £449. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £328 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, September is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of £489). Flying from United Kingdom to Washington, D.C. in July is currently the most expensive (average of £656). 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
Gaithersburg
Woodbridge
Arlington
Alexandria

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£187Average£666FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£317Average£486FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
United AirlinesCheapest£329Average£593FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£329Average£449FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£330Average£545FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£362Average£683FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£363Average£630FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£374Average£633FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£380Average£668FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£396Average£585FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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