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Cheap flights from the United Kingdom to Washington, D.C. from £268

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
16 Jun — 23 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 17 May 2026.

Tue 2/607:10
STN
-
IAD
2 stops17h 10m
Multiple Airlines
Tue 9/620:30
IAD
-
STN
2 stops22h 40m
Multiple Airlines
Deal found 12/5£460
Tue 10/1106:00
LHR
-
IAD
1 stop13h 45m
TAP AIR PORTUGAL
Tue 24/1117:25
IAD
-
LHR
1 stop14h 15m
TAP AIR PORTUGAL
Deal found 12/5£461
Wed 7/1013:05
LHR
-
IAD
1 stop14h 10m
Icelandair
Mon 12/1020:30
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 13/5£463
Tue 21/709:30
LHR
-
IAD
1 stop12h 02m
United Airlines
Thu 6/813:15
IAD
-
LHR
1 stop14h 15m
United Airlines
Deal found 12/5£464
Tue 15/915:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Fri 25/923:20
IAD
-
LGW
1 stop10h 20m
Icelandair
Deal found 13/5£464
Tue 21/715:20
LHR
-
DCA
1 stop11h 33m
United Airlines
Thu 6/813:00
DCA
-
LHR
1 stop11h 55m
United Airlines
Deal found 12/5£464
Tue 15/913:05
LHR
-
IAD
1 stop14h 10m
Icelandair
Fri 25/923:20
IAD
-
LHR
1 stop16h 00m
Icelandair
Deal found 13/5£464
Mon 15/621:30
LGW
-
DCA
3 stops29h 25m
Multiple Airlines
Mon 22/618:55
DCA
-
LGW
2 stops21h 00m
Multiple Airlines
Deal found 13/5£467
Thu 24/915:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Thu 1/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 13/5£467
Thu 17/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Mon 21/920:30
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 13/5£467
Thu 18/608:40
LHR
-
DCA
1 stop14h 06m
JetBlue
Wed 1/706:15
DCA
-
LHR
1 stop9h 30m
JetBlue
Deal found 14/5£467
Tue 1/913:05
LHR
-
IAD
1 stop14h 10m
Icelandair
Wed 9/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 12/5£468

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 17 May 2026.

Round-trip from

£460

One-way from

£268

Popular in

July

Cheapest in

February

Average price

£557

Good round-trip deal

£530 or less

Good one-way deal

£562 or less
2/6-9/6
  • 2/6-9/6
  • 4 total stops
  • 39h 50m total
  • United Kingdom to Washington, D.C.
Search Deals
10/6
  • 10/6
  • 1 total stop
  • 24h 01m total
  • United Kingdom to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 17 May 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

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 29/5

15:40-22:15

1 stop11h 35m

Washington, D.C. Dulles Intl

Sat 3/10

20:30-14:40

1 stop13h 10m

£501

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 28/5

21:25-19:20

1 stop26h 55m

Washington, D.C. Dulles Intl

Fri 2/10

20:30-11:55

1 stop10h 25m

£504

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 16/7

11:30-19:35

1 stop13h 05m

Washington, D.C. Dulles Intl

Sun 2/8

22:55-11:20

Nonstop7h 25m

£526

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 1/8

06:15-22:59

2 stops21h 44m

Washington, D.C. Reagan-National

Thu 13/8

11:50-06:45

1 stop13h 55m

£528

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 1/8

08:55-22:59

2 stops19h 04m

Washington, D.C. Reagan-National

Sat 15/8

09:39-07:10

1 stop16h 31m

£530

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 3/6

12:20-19:59

1 stop12h 39m

Washington, D.C. Reagan-National

Sat 6/6

13:10-09:35

1 stop15h 25m

£532

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/6

12:20-19:59

1 stop12h 39m

Washington, D.C. Reagan-National

Sat 6/6

13:10-09:35

1 stop15h 25m

£532

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 16/7

10:25-19:35

1 stop14h 10m

Washington, D.C. Dulles Intl

Thu 30/7

18:15-09:25

1 stop10h 10m

£534

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 9/6

09:15-17:46

1 stop13h 31m

Baltimore/Washington

Tue 16/6

20:11-12:10

1 stop10h 59m

£535

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 25/6

12:20-21:54

1 stop14h 34m

Washington, D.C. Reagan-National

Sat 11/7

14:15-09:35

1 stop14h 20m

£537

Flights are sorted by cheapest return flights first.

Deals found on 12/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 84 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 £498). Flying from United Kingdom to Washington, D.C. in August is currently the most expensive (average of £671). 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 17 May 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 17 May 2026.

The most flights from GB0 to WAS are scheduled on a Friday (28 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (20 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 127 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 17 May 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

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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
1,563 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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
654 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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
8,004 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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
7,982 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Overall

7.4

Entertainment

7.5

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 £532, Icelandair can have you in Washington, D.C. from United Kingdom in 12h 39m. The distance between United Kingdom and Washington, D.C. is about 3670 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?

    £350 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 Virgin Atlantic, with prices starting from £353 and £378, 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 (88%), Austrian Airlines (88%) and Copa Airlines (88%).

  • 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 £966, our data shows the cheapest flight currently is £484. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £337 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 £498). Flying from United Kingdom to Washington, D.C. in August is currently the most expensive (average of £671). 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 17 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£297Average£675FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£334Average£451FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£335Average£549FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£366Average£689FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£368Average£624FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£368Average£688FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£379Average£633FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£385Average£667FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£402Average£577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£409Average£607FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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