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Cheap flights from London to District of Columbia from £301

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — IAD
30 Mar — 6 Apr1
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 25 March 2025.

Round-trip from

£421

One-way from

£301

Popular in

July

Cheapest in

February

Average price

£525

Good round-trip deal

£541 or less

Good one-way deal

£631 or less
8/5-15/5
  • 8/5-15/5
  • 4 total stops
  • 55h 09m total
  • London to District of Columbia
16/5
  • 16/5
  • 1 total stop
  • 26h 42m total
  • London to District of Columbia
Highest demand for flights based on searches. 12% potential increase in price (£62 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in March 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 25 March 2025.

Thu 8/508:55LGW - IAD
2 stops16h 04mMultiple Airlines
Thu 15/522:05IAD - LGW
2 stops18h 20mMultiple Airlines
Deal found 24/3£426
Sat 24/512:40LHR - DCA
1 stop28h 21mLufthansa
Sat 31/506:00DCA - LHR
1 stop9h 40mLufthansa
Deal found 24/3£434
Sat 3/515:40LGW - IAD
1 stop32h 40mIcelandair
Sun 11/520:30IAD - LGW
1 stop13h 10mIcelandair
Deal found 25/3£436
Wed 14/506:40LHR - IAD
1 stop18h 19mScandinavian Airlines
Wed 8/1022:05IAD - LHR
1 stop18h 35mScandinavian Airlines
Deal found 25/3£437
Wed 30/408:25LHR - DCA
1 stop13h 30mIcelandair
Tue 6/510:10DCA - LHR
1 stop15h 20mIcelandair
Deal found 24/3£437
Fri 9/516:15LTN - IAD
2 stops32h 44mMultiple Airlines
Fri 16/522:05IAD - LTN
2 stops19h 50mMultiple Airlines
Deal found 25/3£443
Wed 7/508:25LHR - DCA
1 stop13h 30mJetBlue
Wed 14/506:09DCA - LHR
1 stop9h 36mJetBlue
Deal found 24/3£444
Thu 10/422:55STN - IAD
1 stop21h 55mMultiple Airlines
Sat 19/417:20IAD - STN
1 stop11h 00mMultiple Airlines
Deal found 25/3£455
Sat 3/506:30LHR - IAD
1 stop12h 00mLufthansa
Sat 24/522:23IAD - LHR
2 stops29h 12mLufthansa
Deal found 25/3£455
Fri 25/421:25LHR - IAD
1 stop26h 55mIcelandair
Tue 29/420:30IAD - LHR
1 stop10h 25mIcelandair
Deal found 25/3£459
Thu 19/612:10LGW - DCA
1 stop11h 49mJetBlue
Tue 24/615:00DCA - LGW
1 stop13h 35mJetBlue
Deal found 25/3£465
Wed 11/608:40LHR - DCA
2 stops30h 39mAir Canada
Wed 18/606:00DCA - LHR
3 stops21h 35mAir Canada
Deal found 25/3£481

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 25 March 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.

LGW - IAD

LGWIAD

London Gatwick

Thu 8/5

08:55-19:59

2 stops16h 04m

Washington, D.C. Dulles Intl

Thu 15/5

22:05-21:25

2 stops18h 20m

£426

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 24/5

12:40-12:01

1 stop28h 21m

Washington, D.C. Reagan-National

Sat 31/5

06:00-20:40

1 stop9h 40m

£434

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 3/5

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 11/5

20:30-14:40

1 stop13h 10m

£436

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 14/5

06:40-19:59

1 stop18h 19m

Washington, D.C. Dulles Intl

Wed 8/10

22:05-21:40

1 stop18h 35m

£437

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 30/4

08:25-16:55

1 stop13h 30m

Washington, D.C. Reagan-National

Tue 6/5

10:10-06:30

1 stop15h 20m

£437

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 9/5

16:15-19:59

2 stops32h 44m

Washington, D.C. Dulles Intl

Fri 16/5

22:05-22:55

2 stops19h 50m

£443

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 7/5

08:25-16:55

1 stop13h 30m

Washington, D.C. Reagan-National

Wed 14/5

06:09-20:45

1 stop9h 36m

£444

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 10/4

22:55-15:50

1 stop21h 55m

Washington, D.C. Dulles Intl

Sat 19/4

17:20-09:20

1 stop11h 00m

£455

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 3/5

06:30-13:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Sat 24/5

22:23-08:35

2 stops29h 12m

£455

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 25/4

21:25-19:20

1 stop26h 55m

Washington, D.C. Dulles Intl

Tue 29/4

20:30-11:55

1 stop10h 25m

£459

Flights are sorted by cheapest return flights first.

Deals found on 23/3

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 25 March 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.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit District of Columbia when rainfall is around 66.0 mm.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 25 March 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from London to District of Columbia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 £333 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include WestJet from £383 and Icelandair from £444 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 (90%), Air France (90%), Delta( 90%).

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

    On average you can expect to pay £1,179 for a flight from London to District of Columbia. The cheapest flight overall is £478 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £332.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£274Average£484FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£331Average£790FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£360Average£553FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£364Average£621FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£396Average£742FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
JetBlueCheapest£396Average£593FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£455Average£594FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£456Average£631FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£469Average£640FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£477Average£716FlexibilityNo cancel feeOn-time75%
Search KLM 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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