London

$262+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
May 5 — May 121
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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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$619
(oojo)

One-way from

$262
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$711

Good round-trip deal

$675 or less

Good one-way deal

$474 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
From District of Columbia to London (LON)
One-way flight from District of Columbia to London (LON)
Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from District of Columbia to London (LON).
Price to beat on a one-way flight from District of Columbia to London (LON).

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 April 30, 2025.

This oojo deal was found by Cheapflights users on 4/28. 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 8/1010:05 pmIAD - LHR
2 stops18h 30mScandinavian Airlines
Sat 8/235:00 pmLHR - IAD
1 stop31h 59mScandinavian Airlines
Deal found 4/28$617
This oojo deal was found by Cheapflights users on 4/28. 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.
Fri 8/2911:15 pmIAD - LGW
1 stop10h 25mIcelandair
Fri 9/53:40 pmLGW - IAD
1 stop11h 30mIcelandair
Deal found 4/28$619
This Gotogate deal was found by Cheapflights users on 4/29. 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.
Tue 5/610:20 pmIAD - LGW
1 stop12h 15mTAP AIR PORTUGAL
Wed 5/144:25 pmLGW - IAD
1 stop27h 55mTAP AIR PORTUGAL
Deal found 4/29$620
This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:00 pmDCA - LHR
1 stop9h 45mIberia
Thu 9/2511:30 amLHR - DCA
2 stops16h 30mIberia
Deal found 4/29$621
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:30 amDCA - LHR
1 stop9h 15mJetBlue
Sun 10/268:25 amLHR - DCA
1 stop12h 34mJetBlue
Deal found 4/29$622
This oojo deal was found by Cheapflights users on 4/29. 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.
Fri 8/2911:15 pmIAD - LHR
1 stop16h 05mIcelandair
Tue 9/21:05 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 4/29$623
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/97:04 pmIAD - LGW
1 stop30h 56mMultiple Airlines
Fri 6/2010:00 amLGW - IAD
1 stop16h 12mMultiple Airlines
Deal found 4/29$624
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/53:30 pmIAD - LHR
1 stop10h 45mDelta
Thu 8/1411:30 amLHR - IAD
1 stop12h 45mDelta
Deal found 4/29$624
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:55 pmIAD - LHR
Nonstop7h 20mIberia
Wed 9/36:15 amLHR - IAD
1 stop13h 45mIberia
Deal found 4/29$627
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/45:20 pmIAD - LTN
1 stop10h 15mMultiple Airlines
Mon 5/127:50 pmLTN - IAD
1 stop28h 40mMultiple Airlines
Deal found 4/28$628
This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1112:30 pmDCA - LGW
2 stops17h 25mIberia
Tue 8/263:05 pmLGW - DCA
1 stop12h 56mIberia
Deal found 4/29$630
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1311:30 amDCA - LGW
1 stop17h 05mJetBlue
Mon 9/2912:10 pmLGW - DCA
1 stop13h 41mJetBlue
Deal found 4/29$632

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 April 30, 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 - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 7/24

11:15 pm-2:40 pm

1 stop10h 25m

London Gatwick

Wed 8/13

3:40 pm-10:10 pm

1 stop11h 30m

$619

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 5/13

10:40 pm-11:05 am

Nonstop7h 25m

London Heathrow

Thu 5/29

6:15 am-3:00 pm

1 stop13h 45m

$619

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 5/6

10:20 pm-3:35 pm

1 stop12h 15m

London Gatwick

Wed 5/14

4:25 pm-3:20 pm

1 stop27h 55m

$620

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 5/13

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Sun 5/18

9:25 pm-7:20 pm

1 stop26h 55m

$621

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 5/13

3:52 pm-7:15 am

1 stop10h 23m

London Heathrow

Wed 5/21

9:30 am-3:50 pm

1 stop11h 20m

$622

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 5/14

5:50 pm-6:20 am

Nonstop7h 30m

London Heathrow

Tue 9/9

6:15 am-7:15 pm

1 stop18h 00m

$623

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 6/9

7:04 pm-7:00 am

1 stop30h 56m

London Gatwick

Fri 6/20

10:00 am-9:12 pm

1 stop16h 12m

$624

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Fri 7/4

3:35 pm-9:35 am

1 stop13h 00m

London Gatwick

Sat 9/13

12:10 pm-8:51 pm

1 stop13h 41m

$632

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 5/6

1:45 pm-6:30 am

1 stop11h 45m

London Heathrow

Wed 5/14

8:15 am-10:58 pm

1 stop19h 43m

$637

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 5/11

5:20 pm-9:05 am

1 stop10h 45m

London Heathrow

Thu 5/22

8:50 am-3:50 pm

1 stop12h 00m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 $1,110). 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 April 30, 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 April 30, 2025.

The most flights from USDC to LON are scheduled on a Monday (27 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated April 30, 2025.
To help decide which airline to fly from District of Columbia to London, see what other customers have to say about Delta, Porter Airlines and KLM. 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.
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $264. However, be on the lookout for offers from TAP AIR PORTUGAL and JetBlue, 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?

  • 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: Singapore Airlines (91%), Delta (89%), Virgin Atlantic (87%).

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

    Looking at all options, your cheapest flight can be booked for $395. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for $419 on average our data indicates $2,419 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 $1,110). 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 District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Sutton
Chelmsford
Brentwood

Browse thousands of different options on Cheapflights for your next trip

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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.

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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$369Average$514FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$370Average$597FlexibilityNo cancel feeOn-time77%
DeltaCheapest$421Average$851FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$474Average$629FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$486Average$759FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$535Average$720FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$549Average$750FlexibilityNo cancel feeOn-time67%
IberiaCheapest$562Average$716FlexibilityNo cancel feeOn-time77%
SWISSCheapest$572Average$801FlexibilityNo cancel feeOn-time79%
FinnairCheapest$573Average$758FlexibilityNo cancel feeOn-time76%

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