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Cheap flights from District of Columbia to London from £259

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to London

Enter your travel dates to find the best prices.

Cheapest flights from District of Columbia to London
Explore the most affordable flight options available from District of Columbia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 March 2026.

Mon 27/422:35
IAD
-
LGW
2 stops16h 50m
TAP AIR PORTUGAL
Mon 4/516:25
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 13/3£455
Mon 13/420:20
IAD
-
LHR
2 stops15h 05m
Scandinavian Airlines
Fri 24/410:20
LHR
-
IAD
1 stop11h 40m
Scandinavian Airlines
Deal found 13/3£455
Tue 28/417:05
IAD
-
LGW
1 stop17h 30m
TAP AIR PORTUGAL
Wed 13/516:25
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 13/3£455
Tue 21/417:05
IAD
-
LHR
1 stop19h 40m
TAP AIR PORTUGAL
Mon 4/519:50
LHR
-
IAD
1 stop24h 20m
TAP AIR PORTUGAL
Deal found 15/3£455
Sun 19/422:35
IAD
-
LGW
1 stop30h 10m
TAP AIR PORTUGAL
Mon 27/421:15
LGW
-
IAD
2 stops22h 55m
TAP AIR PORTUGAL
Deal found 13/3£456
Sat 18/420:20
IAD
-
LHR
1 stop16h 20m
Scandinavian Airlines
Wed 29/406:40
LHR
-
IAD
1 stop15h 20m
Scandinavian Airlines
Deal found 13/3£456
Sun 26/422:35
IAD
-
LGW
2 stops19h 00m
Multiple Airlines
Wed 6/506:00
LGW
-
IAD
2 stops19h 35m
Multiple Airlines
Deal found 14/3£457
Sat 18/420:20
IAD
-
LHR
1 stop16h 20m
Scandinavian Airlines
Thu 23/406:40
LHR
-
IAD
1 stop15h 20m
Scandinavian Airlines
Deal found 13/3£457
Wed 8/422:35
IAD
-
LHR
1 stop19h 20m
TAP AIR PORTUGAL
Mon 13/419:50
LHR
-
IAD
1 stop24h 20m
TAP AIR PORTUGAL
Deal found 14/3£458
Mon 27/422:35
IAD
-
LGW
2 stops16h 50m
TAP AIR PORTUGAL
Wed 6/510:35
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 15/3£459
Sun 19/422:35
IAD
-
LHR
1 stop30h 45m
TAP AIR PORTUGAL
Tue 28/406:00
LHR
-
IAD
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 14/3£459
Mon 6/422:35
IAD
-
LHR
1 stop30h 45m
TAP AIR PORTUGAL
Wed 15/411:20
LHR
-
IAD
1 stop14h 15m
TAP AIR PORTUGAL
Deal found 14/3£460

Find flight deals from District of Columbia to London

Keep the following information in mind while searching for District of Columbia to London flight deals. Data was last updated 18 March 2026.

Round-trip from

£455

One-way from

£259

Popular in

June

Cheapest in

September

Average price

£527

Good round-trip deal

£523 or less

Good one-way deal

£278 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 27/4-4/5
  • 3 total stops
  • 44h 35m total
  • District of Columbia to London
Search Deals
23/3
  • 23/3
  • 2 total stops
  • 23h 15m total
  • District of Columbia to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from District of Columbia to London (LON).
Search Deals
Price to beat on a one-way flight from District of Columbia to London (LON).
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 27/4

21:45-16:50

1 stop38h 05m

London Stansted

Thu 7/5

17:35-11:35

1 stop23h 00m

£522

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 22/4

21:45-22:10

1 stop19h 25m

London Stansted

Tue 9/6

06:55-11:35

1 stop33h 40m

£545

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 21/4

13:20-09:55

1 stop15h 35m

London Stansted

Tue 9/6

06:55-11:35

1 stop33h 40m

£545

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 1/6

20:30-22:50

2 stops21h 20m

London Luton

Tue 9/6

09:40-19:20

2 stops14h 40m

£553

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 23/4

13:20-09:55

1 stop15h 35m

London Stansted

Wed 10/6

06:55-19:50

1 stop17h 55m

£553

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 18/4

13:20-13:10

1 stop18h 50m

London Gatwick

Tue 21/4

07:00-19:50

1 stop17h 50m

£553

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 1/4

18:25-06:55

Nonstop7h 30m

London Heathrow

Tue 7/4

09:00-19:25

1 stop15h 25m

£563

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 7/4

18:15-09:25

1 stop10h 10m

London Gatwick

Tue 5/5

10:35-19:35

1 stop14h 00m

£572

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 4/5

11:00-16:00

2 stops24h 00m

London Heathrow

Fri 8/5

19:50-23:24

2 stops32h 34m

£572

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Wed 20/5

16:20-17:35

2 stops20h 15m

London Stansted

Sat 30/5

06:35-15:39

2 stops14h 04m

£575

Flights are sorted by cheapest return flights first.

Deals found on 17/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from District of Columbia to London

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

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

Currently, March is the cheapest month in which you can book a flight from District of Columbia to London (average of £23). Flying from District of Columbia to London in June is currently the most expensive (average of £524). 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 DC to LON?

Find hourly flight availability from District of Columbia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to London as you normally would.

Weekly flight availability from District of Columbia to London

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

The most flights from USDC to LON are scheduled on a Tuesday (26 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 on average).

Related info for your journey

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

    Departing from District of Columbia to London will take you 7h 30m. There are 3664 mi between District of Columbia and London. Both multi-stop and direct flights can be found to your destination and back.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £160. Users have also found prices from £196 and £211 on JetBlue and Virgin Atlantic, respectively.

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

    The most popular flight routes from District of Columbia to London are Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick and Washington, D.C. Reagan-National - London Heathrow.

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

    Before booking your flight to London from District of Columbia, check out the most reliable airlines to get you to your destination on time: KLM (90%), Air France (90%), Delta( 90%).

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

    Looking for the cheapest flight from District of Columbia to London? While on average our users pay £492, our data indicates the cheapest price to be £271. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around £322.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to London (average of £23). Flying from District of Columbia to London in June is currently the most expensive (average of £524). 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 London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Bedford
Chelmsford
Southend-on-Sea

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Alternative routes for District of Columbia to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from District of Columbia to London

Discover the top 8 airlines that operate flights from District of Columbia to London. 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 March 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£311Average£432FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£384Average£579FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£389Average£564FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£392Average£563FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£399Average£555FlexibilityNo cancel feeOn-time77%
Search Air France flights
IberiaCheapest£459Average£583FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£494Average£576FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£514Average£724FlexibilityNo cancel feeOn-time71%
Search American 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 District of Columbia to London?

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from District of Columbia to London for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from District of Columbia to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from District of Columbia to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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