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$267+ Cheap flights from District of Columbia to London (LON)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$492
(Mytrip)

One-way from

$267
(TAP AIR PORTUGAL)

Popular in

June

Cheapest in

September

Average price

$636

Good round-trip deal

$648 or less

Good one-way deal

$384 or less
From District of Columbia to London (LON)
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One-way flight from District of Columbia to London (LON)
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Highest demand for flights based on searches. 11% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from District of Columbia to London (LON).
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Price to beat on a one-way flight from District of Columbia to London (LON).
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Find flight deals from District of Columbia to London

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 September 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:40 pmIAD - STN
2 stops19h 25mMultiple Airlines
Mon 11/38:30 amSTN - IAD
2 stops15h 00mMultiple Airlines
Deal found 9/13$492
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 pmIAD - LGW
1 stop13h 10mIcelandair
Sat 10/113:40 pmLGW - IAD
1 stop11h 30mIcelandair
Deal found 9/13$492
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/511:15 pmIAD - LGW
1 stop10h 25mIcelandair
Wed 10/153:40 pmLGW - IAD
1 stop11h 30mIcelandair
Deal found 9/13$493
This Gotogate deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 pmIAD - LHR
1 stop18h 50mIcelandair
Wed 10/89:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/14$493
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:30 pmIAD - LGW
1 stop13h 10mIcelandair
Tue 10/143:40 pmLGW - IAD
1 stop32h 40mIcelandair
Deal found 9/13$494
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:30 pmIAD - LHR
1 stop10h 25mIcelandair
Tue 9/309:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/13$494
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:30 pmIAD - LGW
1 stop13h 05mIcelandair
Thu 10/233:40 pmLGW - IAD
1 stop32h 40mIcelandair
Deal found 9/13$495
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:30 pmIAD - LHR
1 stop10h 25mIcelandair
Thu 10/239:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/14$495
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/268:40 pmIAD - LGW
1 stop10h 15mIcelandair
Sat 11/111:55 amLGW - IAD
1 stop11h 35mIcelandair
Deal found 9/13$496
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 pmIAD - LHR
1 stop10h 25mIcelandair
Tue 10/71:05 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 9/14$496
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:15 pmIAD - LGW
1 stop10h 25mIcelandair
Tue 10/73:40 pmLGW - IAD
1 stop32h 40mIcelandair
Deal found 9/13$497
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:15 pmIAD - LHR
1 stop16h 05mIcelandair
Wed 10/151:05 pmLHR - IAD
1 stop14h 05mIcelandair
Deal found 9/14$497

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 15, 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

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 11/2

7:40 pm-11:00 pm

2 stops22h 20m

London Stansted

Sat 11/8

6:30 am-6:30 pm

2 stops17h 00m

$508

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 11/30

10:30 pm-8:35 pm

2 stops17h 05m

London Gatwick

Sun 12/7

10:40 am-9:00 pm

1 stop15h 20m

$514

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 12/1

5:30 pm-8:35 pm

2 stops22h 05m

London Gatwick

Sun 12/7

10:40 am-9:00 pm

1 stop15h 20m

$514

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 10/15

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Wed 12/3

11:55 am-6:30 pm

1 stop11h 35m

$518

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 10/13

8:30 pm-2:35 pm

1 stop13h 05m

London Gatwick

Thu 12/4

11:55 am-6:30 pm

1 stop11h 35m

$518

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 10/11

8:30 pm-2:35 pm

1 stop13h 05m

London Gatwick

Thu 12/4

11:55 am-6:30 pm

1 stop11h 35m

$518

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 11/3

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Mon 11/10

11:55 am-6:30 pm

1 stop11h 35m

$518

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 11/13

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Wed 11/26

11:55 am-6:30 pm

1 stop11h 35m

$518

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 10/14

9:35 am-12:00 pm

2 stops21h 25m

London Stansted

Tue 10/21

9:45 pm-9:05 pm

2 stops28h 20m

$526

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Tue 10/14

12:55 pm-12:00 pm

3 stops18h 05m

London Stansted

Tue 10/21

9:45 pm-9:51 pm

2 stops29h 06m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 round-trip 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, November is the cheapest month in which you can book a flight from District of Columbia to London (average of $661). Flying from District of Columbia to London in June is currently the most expensive (average of $1,097). 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 September 15, 2025.

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 September 15, 2025.

The most flights from USDC to LON are scheduled on a Monday (28 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (20 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 13h 10m. The distance between District of Columbia and London is about 3683 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $267. However, be on the lookout for offers from JetBlue and ITA Airways, as they are both options that can get you from District of Columbia to London for a low price.

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

    When deciding which route to take from District of Columbia to London consider Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Reagan-National - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from District of Columbia to London on time: Aeromexico (100%), KLM (70%), Air France (70%).

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

    Looking at all options, your cheapest flight can be booked for $347. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for $423 on average, our data indicates $1,974 when flying from District of Columbia to London.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from District of Columbia to London (average of $661). Flying from District of Columbia to London in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Eastbourne
Sutton

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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 10 airlines flying from District of Columbia to London

Discover the top 10 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 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$806FlexibilityNo cancel feeOn-time62%
PLAYCheapest$313Average$486FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$421Average$797FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$424Average$597FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$433Average$619FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$441Average$601FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$447Average$812FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$497Average$851FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$854FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$506Average$858FlexibilityNo cancel feeOn-time69%

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