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Cheap flights from District of Columbia to London from £263

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 2 December 2025.

Wed 10/1222:20IAD - LHR
Nonstop7h 30mDelta
Fri 30/116:50LHR - IAD
Nonstop8h 40mDelta
Deal found 1/12£440
Mon 8/1209:45IAD - LTN
2 stops29h 25mMultiple Airlines
Mon 15/1220:50LTN - IAD
2 stops24h 50mMultiple Airlines
Deal found 1/12£441
Mon 8/1222:55IAD - LHR
Nonstop7h 30mDelta
Tue 16/1216:50LHR - IAD
Nonstop8h 40mDelta
Deal found 1/12£441
Sun 14/1219:40IAD - LHR
1 stop18h 50mIcelandair
Sat 17/112:15LHR - IAD
1 stop11h 15mIcelandair
Deal found 1/12£441
Wed 31/1216:10DCA - LHR
1 stop10h 00mAir Canada
Wed 14/112:00LHR - DCA
1 stop29h 19mAir Canada
Deal found 1/12£442
Tue 9/1217:05IAD - LHR
1 stop11h 00mAer Lingus
Mon 19/107:50LHR - IAD
1 stop12h 45mAer Lingus
Deal found 1/12£442
Sun 7/1218:45DCA - LHR
1 stop11h 40mVirgin Atlantic
Tue 16/1209:40LHR - DCA
1 stop11h 19mVirgin Atlantic
Deal found 30/11£443
Mon 15/1219:40IAD - LHR
1 stop18h 50mIcelandair
Mon 12/120:35LHR - IAD
1 stop26h 55mIcelandair
Deal found 1/12£443
Sun 7/1219:40IAD - LHR
1 stop10h 10mIcelandair
Thu 11/1212:15LHR - IAD
1 stop11h 15mIcelandair
Deal found 1/12£444
Tue 30/1219:40IAD - LGW
1 stop10h 15mIcelandair
Tue 13/111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 1/12£444
Mon 8/1212:30IAD - LHR
1 stop15h 30mDelta
Wed 17/1216:50LHR - IAD
Nonstop8h 40mDelta
Deal found 30/11£444
Tue 30/1219:40IAD - LGW
1 stop10h 15mIcelandair
Sun 11/111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 30/11£446

Cheap 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 2 December 2025.

Round-trip from

£439

One-way from

£263

Popular in

December

Cheapest in

September

Average price

£735

Good round-trip deal

£535 or less

Good one-way deal

£339 or less
16/1-23/1
  • 16/1-23/1
  • 4 total stops
  • 37h 30m total
  • District of Columbia to London
Search Deals
JetBlue
  • JetBlue
  • 8/1
  • 1 total stop
  • 10h 40m total
  • District of Columbia to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£35 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 2 December 2025.
Use the filters below to find and compare flights from District of Columbia to London that are best for you.

Fly from

District of Columbia

Fly to

London

Route

Depart

Return

Price

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 12/1

12:55-07:10

2 stops13h 15m

London Heathrow

Tue 20/1

09:00-19:45

2 stops15h 45m

£441

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 22/4

11:00-09:35

2 stops17h 35m

London Heathrow

Mon 27/4

07:05-23:12

2 stops21h 07m

£441

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 27/1

13:00-06:55

1 stop12h 55m

London Heathrow

Tue 10/2

09:20-16:19

1 stop11h 59m

£443

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 1/2

19:40-14:35

2 stops13h 55m

London Luton

Sat 7/2

07:15-18:30

2 stops16h 15m

£443

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Wed 28/1

11:05-18:15

3 stops26h 10m

London Luton

Mon 2/2

19:05-21:58

3 stops31h 53m

£444

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Fri 16/1

06:00-19:45

3 stops32h 45m

London Stansted

Tue 20/1

08:10-10:23

2 stops31h 13m

£444

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 8/3

23:20-10:50

Nonstop7h 30m

London Heathrow

Wed 25/3

10:00-17:05

1 stop11h 05m

£444

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 18/3

19:20-06:40

Nonstop7h 20m

London Heathrow

Mon 23/3

16:40-16:35

1 stop27h 55m

£444

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/3

23:20-10:50

Nonstop7h 30m

London Heathrow

Wed 25/3

08:40-17:05

1 stop12h 25m

£444

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 25/2

18:20-06:40

Nonstop7h 20m

London Heathrow

Wed 15/4

12:10-16:20

1 stop33h 10m

£445

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 60 results
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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 £565). 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 2 December 2025.

One of the essential ways to save on airfare from District of Columbia to London is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 26% on airfare.

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 2 December 2025.

The most flights from USDC to LON are scheduled on a Monday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

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

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 12h 55m. There are 3652 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 JetBlue. According to our data, you can fly for as low as £278. Users have also found prices from £280 and £283 on TAP AIR PORTUGAL and Air Canada, 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 (86%), Aer Lingus (82%), American Airlines( 82%).

  • 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 £867, our data indicates the cheapest price to be £290. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around £319.

  • 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 £565). 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
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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 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£313Average£499FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£383Average£698FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£383Average£619FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£391Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£403Average£514FlexibilityNo cancel feeOn-time77%
Search Air France flights
IberiaCheapest£464Average£524FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£509Average£634FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£518Average£730FlexibilityNo 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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