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Cheap flights from London to District of Columbia from £407

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — IAD
11 Jul — 18 Jul1
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 11 June 2026.

Tue 7/708:30
LHR
-
IAD
2 stops17h 49m
Air Canada
Fri 11/916:00
IAD
-
LHR
1 stop14h 50m
Air Canada
Deal found 10/6£486
Wed 12/809:15
LCY
-
IAD
1 stop12h 30m
SWISS
Wed 19/820:20
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 8/6£486
Mon 15/615:00
LHR
-
IAD
1 stop14h 13m
American Airlines
Mon 22/620:22
IAD
-
LHR
1 stop10h 48m
American Airlines
Deal found 8/6£487
Mon 6/708:10
LCY
-
IAD
1 stop12h 20m
Multiple Airlines
Mon 13/722:20
IAD
-
LCY
2 stops14h 35m
Multiple Airlines
Deal found 8/6£487
Wed 17/612:00
LHR
-
IAD
1 stop12h 33m
British Airways
Sun 28/620:22
IAD
-
LHR
1 stop10h 48m
British Airways
Deal found 9/6£488
Thu 19/1116:00
LGW
-
IAD
1 stop33h 35m
TAP AIR PORTUGAL
Fri 4/1222:30
IAD
-
LGW
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 10/6£488
Wed 1/710:05
LHR
-
DCA
1 stop12h 08m
American Airlines
Sun 12/706:30
DCA
-
LHR
1 stop10h 10m
American Airlines
Deal found 9/6£488
Thu 23/719:15
LCY
-
IAD
1 stop26h 30m
Multiple Airlines
Thu 30/722:15
IAD
-
LCY
1 stop14h 40m
Multiple Airlines
Deal found 8/6£488
Tue 11/808:45
LHR
-
IAD
1 stop13h 00m
United Airlines
Thu 20/812:35
IAD
-
LHR
1 stop13h 40m
United Airlines
Deal found 8/6£489
Fri 3/720:40
LGW
-
IAD
1 stop27h 15m
British Airways
Sat 11/720:30
IAD
-
LGW
1 stop33h 20m
British Airways
Deal found 9/6£489
Fri 19/609:15
LHR
-
DCA
1 stop19h 39m
American Airlines
Mon 22/619:07
DCA
-
LHR
1 stop12h 03m
American Airlines
Deal found 9/6£489
Fri 28/809:15
LCY
-
IAD
1 stop12h 30m
SWISS
Sun 6/920:20
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 9/6£489

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 11 June 2026.

Round-trip from

£486

One-way from

£407

Popular in

June

Cheapest in

February

Average price

£593

Good round-trip deal

£576 or less

Good one-way deal

£617 or less
Air Canada
  • Air Canada
  • 31/8-2/11
  • 3 total stops
  • 47h 03m total
  • London to District of Columbia
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 15h 40m total
  • London to District of Columbia
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 June 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 11 June 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

Tue 11/8

08:45-16:45

1 stop13h 00m

Washington, D.C. Dulles Intl

Sat 22/8

06:15-20:40

1 stop9h 25m

£490

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 10/8

07:30-16:05

1 stop13h 35m

Washington, D.C. Dulles Intl

Fri 21/8

18:30-06:55

Nonstop7h 25m

£495

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 20/8

09:15-15:58

1 stop11h 43m

Washington, D.C. Reagan-National

Mon 21/9

18:23-09:10

1 stop9h 47m

£496

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 9/7

09:15-16:05

1 stop11h 50m

Washington, D.C. Dulles Intl

Wed 29/7

15:25-08:40

1 stop12h 15m

£498

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 9/7

17:25-23:31

1 stop11h 06m

Washington, D.C. Reagan-National

Sat 11/7

19:58-21:40

1 stop20h 42m

£514

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Thu 8/10

11:25-10:26

2 stops52h 01m

Washington, D.C. Reagan-National

Mon 12/10

14:55-15:15

2 stops43h 20m

£516
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 22/7

16:40-20:00

Nonstop8h 20m

Washington, D.C. Dulles Intl

Mon 10/8

18:30-06:55

Nonstop7h 25m

£518

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 7/7

19:15-15:30

1 stop25h 15m

Washington, D.C. Dulles Intl

Sun 12/7

17:40-12:35

1 stop13h 55m

£521

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 1/7

19:15-15:30

1 stop25h 15m

Washington, D.C. Dulles Intl

Tue 14/7

17:40-12:35

1 stop13h 55m

£521

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 6/8

17:25-23:33

1 stop11h 08m

Washington, D.C. Reagan-National

Sat 15/8

18:23-09:50

1 stop10h 27m

£521

Flights are sorted by cheapest return flights first.

Deals found on 8/6

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, September is the cheapest month in which you can book a flight from London to District of Columbia (average of £446). Flying from London to District of Columbia in June is currently the most expensive (average of £657). 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 11 June 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 11 June 2026.

The most flights from LON to USDC are scheduled on a Monday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (27 on average).

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

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 79 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 11 June 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
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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
9,808 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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
672 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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
8,053 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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
8,039 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

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 43m. United Airlines provides one of the quickest options available for as low as £496. London and District of Columbia are separated by a distance of 3652 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 £326 on JetBlue. Other airlines that offer cheap prices include Aer Lingus from £354 and TAP AIR PORTUGAL from £370 one-way.

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

    While some choose either London Heathrow - Washington, D.C. Reagan-National or London Gatwick - Washington, D.C. Dulles Intl, 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 (91%), Austrian Airlines (91%), Copa Airlines( 91%).

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

    On average you can expect to pay £1,018 for a flight from London to District of Columbia. The cheapest flight overall is £445 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £350.

  • 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, September is the cheapest month in which you can book a flight from London to District of Columbia (average of £446). Flying from London to District of Columbia in June is currently the most expensive (average of £657). 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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£329Average£506FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£332Average£560FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£332Average£414FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£365Average£716FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£378Average£559FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£400Average£573FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£404Average£600FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£408Average£538FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£411Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£415Average£598FlexibilityNo cancel feeOn-time62%
Search JetBlue 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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