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Cheap flights from London to District of Columbia from £333

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — IAD
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to District of Columbia

Enter your travel dates to find the best prices.

Cheapest flights from London to District of Columbia
Explore the most affordable flight options available from London to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2026.

Wed 23/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Sun 27/923:20
IAD
-
LHR
1 stop16h 00m
Icelandair
Deal found 27/7£439
Thu 10/913:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Thu 17/920:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 27/7£439
Mon 14/921:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Thu 24/920:30
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 28/7£440
Tue 8/915:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Tue 15/923:20
IAD
-
LGW
1 stop10h 20m
Icelandair
Deal found 24/7£440
Wed 2/906:00
LHR
-
IAD
1 stop14h 10m
TAP AIR PORTUGAL
Tue 8/922:35
IAD
-
LHR
1 stop19h 20m
TAP AIR PORTUGAL
Deal found 24/7£441
Tue 25/815:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Sat 29/820:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 24/7£441
Tue 13/1013:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Fri 30/1020:40
IAD
-
LHR
1 stop10h 10m
Icelandair
Deal found 25/7£441
Tue 1/1216:35
LGW
-
IAD
1 stop33h 00m
TAP AIR PORTUGAL
Tue 8/1217:25
IAD
-
LGW
1 stop11h 25m
TAP AIR PORTUGAL
Deal found 27/7£441
Thu 24/920:05
LHR
-
IAD
1 stop25h 40m
Multiple Airlines
Sun 27/918:35
IAD
-
LHR
Nonstop7h 20m
Multiple Airlines
Deal found 25/7£442
Thu 10/913:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Mon 28/920:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 23/7£442
Fri 23/1006:00
LHR
-
IAD
1 stop15h 45m
Multiple Airlines
Fri 30/1023:15
IAD
-
LHR
Nonstop7h 35m
Multiple Airlines
Deal found 26/7£443
Thu 17/915:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Thu 24/920:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 27/7£443

Find flight deals from London to District of Columbia

Keep the following information in mind while searching for London to District of Columbia flight deals. Data was last updated 28 July 2026.

Round-trip from

£439

One-way from

£333

Popular in

June

Cheapest in

February

Average price

£570

Good round-trip deal

£514 or less

Good one-way deal

£553 or less
Icelandair
  • Icelandair
  • 23/9-27/9
  • 2 total stops
  • 27h 15m total
  • London to District of Columbia
Search Deals
Icelandair
  • Icelandair
  • 9/10
  • 1 total stop
  • 11h 15m total
  • London to District of Columbia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£38 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 July 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to District of Columbia.
Search Deals
Price to beat on a one-way flight from London (LON) to District of Columbia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to District of Columbia 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 28 July 2026.
Use the filters below to find and compare flights from London to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 2/9

08:40-16:45

1 stop13h 05m

Washington, D.C. Dulles Intl

Tue 8/9

22:05-10:40

Nonstop7h 35m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 9/9

13:30-20:00

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 16/9

18:35-06:55

Nonstop7h 20m

£468

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 4/9

09:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Sat 12/9

18:35-06:55

Nonstop7h 20m

£468

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 22/8

07:30-15:15

1 stop12h 45m

Washington, D.C. Dulles Intl

Sun 13/9

17:45-10:25

1 stop11h 40m

£468

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 26/8

09:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Thu 10/9

12:35-10:00

2 stops16h 25m

£470

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 10/9

06:50-16:58

2 stops15h 08m

Washington, D.C. Reagan-National

Wed 16/9

10:27-09:20

1 stop17h 53m

£473

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 11/9

06:50-16:58

2 stops15h 08m

Washington, D.C. Reagan-National

Wed 16/9

10:27-10:25

1 stop18h 58m

£474

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 2/9

13:25-19:25

1 stop11h 00m

Washington, D.C. Dulles Intl

Tue 8/9

21:30-09:50

Nonstop7h 20m

£479

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 27/10

12:35-20:59

1 stop12h 24m

Washington, D.C. Reagan-National

Thu 26/11

14:56-06:40

1 stop10h 44m

£483
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 19/9

16:40-20:15

Nonstop8h 35m

Washington, D.C. Dulles Intl

Sat 26/9

18:35-06:55

Nonstop7h 20m

£492

Flights are sorted by cheapest return flights first.

Deals found on 26/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from London 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 London to District of Columbia

What is the cheapest month to book a flight from London to District of Columbia?

Currently, February is the cheapest month in which you can book a flight from London to District of Columbia (average of £474). Flying from London to District of Columbia in June is currently the most expensive (average of £582). 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 LON to DC?

Find hourly flight availability from London to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 July 2026.

When flying from London to District of Columbia, 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 London to District of Columbia

Explore weekly flight availability from London to District of Columbia. 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 28 July 2026.

The most flights from LON to USDC are scheduled on a Friday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

How much does it cost for a return flight from London to District of Columbia?

Airfare is below average for this route at the moment.
London to District of Columbia flights typically cost between £501 and £650 in September.
The cheapest return price found within the last 5 days was £439 on Icelandair (23 Sept–27 Sept).

How far ahead should I book a flight from London to District of Columbia?

To ensure you get the cheapest price possible for a flight from London to District of Columbia, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated 28 July 2026.
See what other customers who have flown with Virgin Atlantic,United Airlines, andIcelandair from London to District of Columbia have to say. 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.
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
694 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,052 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Icelandair
7.0
Good
716 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,164 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,129 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

Find useful and relevant information for your journey from London to District of Columbia. 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 London to District of Columbia?

    A quick flight from London to District of Columbia can take about 11h 30m. United Airlines provides one of the quickest options available for as low as £468. London and District of Columbia are separated by a distance of 3664 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to District of Columbia one-way?

    One-way options have recently been found by users for as low as £328 on JetBlue. Other airlines that offer cheap prices include British Airways from £347 and Aer Lingus from £356 one-way.

  • What are the most popular routes from London to District of Columbia?

    While some choose either London Gatwick - Washington, D.C. Dulles Intl or London Heathrow - Washington, D.C. Reagan-National, London Heathrow - Washington, D.C. Dulles Intl is the most popular route from London to District of Columbia.

  • What are the most reliable airlines from London to District of Columbia?

    Before booking your flight to District of Columbia from London, check out the most reliable airlines to get you to your destination on time: Air Canada (85%), Austrian Airlines (85%), Copa Airlines( 85%).

  • What are the cheapest flights from London to District of Columbia?

    On average you can expect to pay £1,540 for a flight from London to District of Columbia. The cheapest flight overall is £397 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £390.

  • Can I find deals for flights from London to District of Columbia that include hotel bookings?

    Yes. In addition to deals on London to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to District of Columbia.

  • Can I find deals for business class flights from London to District of Columbia?

    Yes. Cheapflights offers flight deals from London to District of Columbia 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 London to District of Columbia?

    Currently, February is the cheapest month in which you can book a flight from London to District of Columbia (average of £474). Flying from London to District of Columbia in June is currently the most expensive (average of £582). 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

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Alternative routes for London to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from London to District of Columbia

Discover the top 10 airlines that operate flights from London to District of Columbia. 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 28 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£330Average£474FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£335Average£530FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£366Average£595FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£379Average£566FlexibilityNo cancel feeOn-time75%
Search KLM flights
TAP AIR PORTUGALCheapest£386Average£454FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£408Average£565FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£409Average£543FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£409Average£556FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£411Average£653FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£412Average£480FlexibilityNo cancel feeOn-time77%
Search Scandinavian 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 London to District of Columbia?

Cheapflights helps you search for flights from London to District of Columbia 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 London to District of Columbia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to District of Columbia.

Can Cheapflights find flights from London to District of Columbia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to District of Columbia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to District of Columbia become cheaper?

Yes, Cheapflights offers price alerts on London to District of Columbia 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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