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Cheap flights from District of Columbia to London from £194

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£410

One-way from

£194

Popular in

June

Cheapest in

January

Average price

£621

Good round-trip deal

£484 or less

Good one-way deal

£298 or less
11/8-20/8
  • 11/8-20/8
  • 5 total stops
  • 52h 21m total
  • District of Columbia to London
15/10
  • 15/10
  • 2 total stops
  • 20h 55m total
  • District of Columbia to London
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in July 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 4 July 2025.

Mon 11/814:25IAD - STN
3 stops25h 35mMultiple Airlines
Wed 20/822:00STN - IAD
2 stops28h 01mMultiple Airlines
Deal found 3/7£410
Mon 11/814:25IAD - LGW
3 stops23h 10mMultiple Airlines
Wed 20/820:50LGW - IAD
2 stops29h 11mMultiple Airlines
Deal found 3/7£410
Mon 10/1112:55DCA - LHR
2 stops13h 15mAir Canada
Sun 16/1106:50LHR - DCA
2 stops13h 41mAir Canada
Deal found 3/7£410
Fri 22/818:35IAD - LHR
Nonstop7h 20mUnited Airlines
Tue 26/806:50LHR - IAD
1 stop12h 35mUnited Airlines
Deal found 3/7£410
Sun 17/823:15IAD - LGW
1 stop31h 30mIcelandair
Sun 24/815:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 3/7£410
Wed 30/714:55DCA - LHR
1 stop10h 50mKLM
Wed 6/810:55LHR - DCA
1 stop12h 19mKLM
Deal found 2/7£410
Wed 6/822:40IAD - LHR
Nonstop7h 25mBritish Airways
Tue 12/817:00LHR - IAD
Nonstop8h 10mBritish Airways
Deal found 3/7£410
Tue 23/909:40DCA - STN
2 stops28h 45mMultiple Airlines
Tue 30/922:05STN - DCA
2 stops28h 46mMultiple Airlines
Deal found 3/7£410
Sat 11/1006:00DCA - LHR
1 stop9h 40mUnited Airlines
Thu 16/1009:30LHR - DCA
2 stops31h 49mUnited Airlines
Deal found 2/7£411
Sat 27/920:30IAD - LTN
1 stop12h 05mMultiple Airlines
Wed 8/1006:15LTN - IAD
1 stop18h 05mMultiple Airlines
Deal found 3/7£411
Sun 17/817:50IAD - LHR
Nonstop7h 30mDelta
Sun 24/806:15LHR - IAD
1 stop18h 00mDelta
Deal found 3/7£412
Wed 3/920:45IAD - LCY
1 stop15h 30mSWISS
Thu 11/909:25LCY - IAD
1 stop11h 50mSWISS
Deal found 2/7£413

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 4 July 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

Mon 11/8

14:25-18:35

3 stops23h 10m

London Gatwick

Wed 20/8

20:50-21:01

2 stops29h 11m

£410

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 22/8

18:35-06:55

Nonstop7h 20m

London Heathrow

Tue 26/8

06:50-14:25

1 stop12h 35m

£410

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 10/11

12:55-07:10

2 stops13h 15m

London Heathrow

Sun 16/11

06:50-15:31

2 stops13h 41m

£410

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 17/8

23:15-11:45

1 stop31h 30m

London Gatwick

Sun 24/8

15:40-22:10

1 stop11h 30m

£410

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 30/7

14:55-06:45

1 stop10h 50m

London Heathrow

Wed 6/8

10:55-18:14

1 stop12h 19m

£410

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 6/8

22:40-11:05

Nonstop7h 25m

London Heathrow

Tue 12/8

17:00-20:10

Nonstop8h 10m

£410

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 23/9

09:45-19:25

2 stops28h 40m

London Stansted

Tue 30/9

22:05-21:05

2 stops28h 00m

£410

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Sat 11/10

06:00-20:40

1 stop9h 40m

London Heathrow

Thu 16/10

09:30-12:19

2 stops31h 49m

£411

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 17/8

17:50-06:20

Nonstop7h 30m

London Heathrow

Sun 24/8

06:15-19:15

1 stop18h 00m

£412

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 3/9

20:45-17:15

1 stop15h 30m

London City

Thu 11/9

09:25-16:15

1 stop11h 50m

£413

Flights are sorted by cheapest return flights first.

Deals found on 1/7

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, January is the cheapest month in which you can book a flight from District of Columbia to London (average of £112). Flying from District of Columbia to London in August is currently the most expensive (average of £164). 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 4 July 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 4 July 2025.

The most flights from USDC to LON are scheduled on a Wednesday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

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 4 July 2025.
Read through reviews of airlines operating flights from District of Columbia to London, such as Delta, KLM, andFinnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £196. Users have also found prices from £196 and £210 on Icelandair and Iberia, respectively.

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

  • 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 (68%), Air France (68%), Delta( 68%).

  • 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 £1,140, our data indicates the cheapest price to be £261. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around £308.

  • 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, January is the cheapest month in which you can book a flight from District of Columbia to London (average of £112). Flying from District of Columbia to London in August is currently the most expensive (average of £164). 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 District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Maidstone
Guildford
Chichester

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 858,174 searches. Data last updated 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£301Average£603FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£351Average£655FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£408Average£556FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£412Average£742FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£418Average£542FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£427Average£652FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£446Average£560FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£452Average£542FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£479Average£615FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£486Average£707FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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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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