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Cheap flights from London to District of Columbia from £350

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — IAD
6 Jul — 13 Jul1
1 adult

Cheap flight deals from London to District of Columbia

Keep the following information in mind while searching for London to District of Columbia flight deals. Data was last updated 1 July 2025.

Round-trip from

£480

One-way from

£350

Popular in

July

Cheapest in

February

Average price

£651

Good round-trip deal

£531 or less

Good one-way deal

£584 or less
6/9-13/9
  • 6/9-13/9
  • 2 total stops
  • 25h 15m total
  • London to District of Columbia
7/9
  • 7/9
  • 2 total stops
  • 33h 45m total
  • London to District of Columbia
Highest demand for flights based on searches. 14% potential increase in price (£65 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to District of Columbia.
Price to beat on a one-way flight from London (LON) to District of Columbia.

Find flight deals from London to District of Columbia

Cheapest flights from London to District of Columbia
Explore the most affordable flight options available from London to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Sat 6/906:35STN - IAD
1 stop14h 15mMultiple Airlines
Sat 13/917:20IAD - STN
1 stop11h 00mMultiple Airlines
Deal found 30/6£480
Fri 5/910:35LGW - IAD
1 stop15h 15mTAP AIR PORTUGAL
Mon 15/917:45IAD - LGW
2 stops36h 35mTAP AIR PORTUGAL
Deal found 29/6£483
Sat 4/1008:25LHR - DCA
1 stop12h 59mJetBlue
Tue 4/1114:25DCA - LHR
1 stop10h 30mJetBlue
Deal found 30/6£483
Tue 2/919:25LHR - IAD
2 stops24h 35mIberia
Mon 1/1217:05IAD - LHR
2 stops15h 55mIberia
Deal found 30/6£484
Thu 6/1107:45LCY - DCA
2 stops15h 20mVirgin Atlantic
Mon 10/1111:00DCA - LCY
2 stops15h 15mVirgin Atlantic
Deal found 30/6£485
Thu 4/910:00LCY - IAD
2 stops18h 26mVirgin Atlantic
Sat 20/917:25IAD - LCY
1 stop14h 50mVirgin Atlantic
Deal found 29/6£485
Sat 20/915:40LGW - IAD
1 stop11h 30mIcelandair
Sat 18/1023:15IAD - LGW
1 stop10h 25mIcelandair
Deal found 30/6£486
Fri 29/806:40LHR - IAD
2 stops42h 19mScandinavian Airlines
Sun 7/922:05IAD - LHR
1 stop14h 35mScandinavian Airlines
Deal found 30/6£486
Fri 22/814:00LGW - IAD
1 stop35h 48mMultiple Airlines
Mon 25/823:15IAD - LGW
1 stop10h 20mMultiple Airlines
Deal found 29/6£486
Sat 6/1213:25LHR - DCA
1 stop13h 31mAir Canada
Fri 19/1206:00DCA - LHR
1 stop20h 10mAir Canada
Deal found 30/6£486
Thu 18/912:10LGW - DCA
1 stop24h 59mJetBlue
Wed 1/1016:39DCA - LGW
1 stop11h 56mJetBlue
Deal found 30/6£489
Sun 31/819:15LHR - IAD
2 stops26h 00mSWISS
Wed 17/920:45IAD - LHR
2 stops14h 50mSWISS
Deal found 30/6£490

Cheapflights Fare Finder

Customise your flight search to find flights from London to District of Columbia 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 1 July 2025.
Use the filters below to find and compare flights from London to District of Columbia that are best for you.

Fly from

London

Fly to

District of Columbia

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 6/9

06:35-15:50

1 stop14h 15m

Washington, D.C. Dulles Intl

Sat 13/9

17:20-09:20

1 stop11h 00m

£480

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 5/9

10:35-20:50

1 stop15h 15m

Washington, D.C. Dulles Intl

Mon 15/9

17:45-11:20

2 stops36h 35m

£483

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 4/10

08:25-16:24

1 stop12h 59m

Washington, D.C. Reagan-National

Tue 4/11

14:25-05:55

1 stop10h 30m

£483

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 2/9

19:25-15:00

2 stops24h 35m

Washington, D.C. Dulles Intl

Mon 1/12

17:05-14:00

2 stops15h 55m

£484

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Thu 6/11

07:45-18:05

2 stops15h 20m

Washington, D.C. Reagan-National

Mon 10/11

11:00-07:15

2 stops15h 15m

£485

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 4/9

10:00-23:26

2 stops18h 26m

Washington, D.C. Dulles Intl

Sat 20/9

17:25-13:15

1 stop14h 50m

£485

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 20/9

15:40-22:10

1 stop11h 30m

Washington, D.C. Dulles Intl

Sat 18/10

23:15-14:40

1 stop10h 25m

£486

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 29/8

06:40-19:59

2 stops42h 19m

Washington, D.C. Dulles Intl

Sun 7/9

22:05-17:40

1 stop14h 35m

£486

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 6/12

13:25-21:56

1 stop13h 31m

Washington, D.C. Reagan-National

Fri 19/12

06:00-07:10

1 stop20h 10m

£486

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 22/8

14:00-20:48

1 stop35h 48m

Washington, D.C. Dulles Intl

Mon 25/8

23:15-14:35

1 stop10h 20m

£486

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 60 results
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Best time to book a flight from London to District of Columbia

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

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

Currently, January is the cheapest month in which you can book a flight from London to District of Columbia (average of £599). Flying from London to District of Columbia in July is currently the most expensive (average of £947). 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 LON to DC?

Find hourly flight availability from London to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2025.

When flying from London to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to District of Columbia

Explore weekly flight availability from London to District of Columbia. 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 1 July 2025.

The most flights from LON to USDC are scheduled on a Monday (27 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (18 on average).

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

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated 1 July 2025.
See what other customers who have flown with Delta, KLM, andFinnair from London to District of Columbia have to say. 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.

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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 London to District of Columbia. 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 London to District of Columbia one-way?

    One-way options have recently been found by users for as low as £366 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Icelandair from £400 and Aer Lingus from £411 one-way.

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

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

    Before booking your flight to District of Columbia from London, check out the most reliable airlines to get you to your destination on time: KLM (84%), Air France (84%), Delta( 84%).

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

    On average you can expect to pay £1,633 for a flight from London to District of Columbia. The cheapest flight overall is £432 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £343.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London to District of Columbia (average of £599). Flying from London to District of Columbia in July is currently the most expensive (average of £947). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from London to District of Columbia

Discover the top 10 airlines that operate flights from London to District of Columbia. 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 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£184Average£492FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£244Average£399FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Air FranceCheapest£287Average£656FlexibilityNo cancel feeOn-time77%
Search Air France flights
IcelandairCheapest£349Average£514FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£360Average£535FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
JetBlueCheapest£367Average£581FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Brussels AirlinesCheapest£373Average£951FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£429Average£619FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£429Average£568FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£441Average£623FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to District of Columbia?

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to District of Columbia.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to District of Columbia flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on London to District of Columbia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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