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Cheap flights from London to Washington, D.C. from £284

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — WAS
24 Dec — 31 Dec1
1 adult

The best prices from London to Washington, D.C. are usually found in February or January, booked 86 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 December 2024.

Round-trip from

£394

One-way from

£284

Popular in

July

Cheapest in

February

Average price

£604
28/1-23/4
  • 28/1-23/4
  • 2 total stops
  • 40h 10m total
  • London to Washington, D.C.
16/1
  • 16/1
  • 1 total stop
  • 25h 20m total
  • London to Washington, D.C.
High demand for flights, 13% potential price rise
Best time to find cheap flights, 1% potential price drop
Average for round-trip flights in December 2024

Find flight deals from London to Washington, D.C.

Cheapest flights from London to Washington, D.C.
Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Mon 30/1206:30LHR - IAD
1 stop14h 15mDelta
Thu 9/119:37IAD - LHR
1 stop9h 53mDelta
Deal found 18/12£503
Sun 29/1210:05LHR - IAD
1 stop14h 35mIberia
Sun 26/120:05IAD - LHR
1 stop29h 55mIberia
Deal found 18/12£522
Fri 27/1205:55STN - BWI
2 stops16h 05mMultiple Airlines
Wed 8/118:10BWI - STN
1 stop10h 50mMultiple Airlines
Deal found 18/12£526
Sun 29/1210:35LHR - DCA
1 stop13h 20mAmerican Airlines
Thu 9/117:30DCA - LHR
1 stop10h 45mAmerican Airlines
Deal found 18/12£527
Sun 29/1210:35LHR - IAD
2 stops27h 14mAmerican Airlines
Sun 26/113:53IAD - LHR
2 stops15h 22mAmerican Airlines
Deal found 18/12£528
Wed 25/1216:30LHR - IAD
Nonstop8h 15mBritish Airways
Thu 9/121:55IAD - LHR
Nonstop7h 10mBritish Airways
Deal found 18/12£536
Mon 30/1209:20LCY - IAD
1 stop11h 25mDelta
Thu 9/117:35IAD - LCY
1 stop10h 15mDelta
Deal found 18/12£544
Sat 28/1215:00LHR - DCA
1 stop24h 19mLufthansa
Wed 8/115:00DCA - LHR
1 stop10h 20mLufthansa
Deal found 18/12£548
Sun 29/1210:05LHR - BWI
1 stop17h 22mAmerican Airlines
Sun 26/108:23BWI - LHR
1 stop17h 37mAmerican Airlines
Deal found 18/12£557
Sat 28/1214:30LHR - IAD
1 stop24h 16mLufthansa
Wed 8/122:30IAD - LHR
Nonstop7h 35mLufthansa
Deal found 18/12£562
Sun 29/1206:30LHR - IAD
1 stop14h 15mVirgin Atlantic
Sun 26/118:25IAD - LHR
Nonstop7h 30mVirgin Atlantic
Deal found 18/12£563
Sun 29/1212:25LHR - IAD
Nonstop8h 40mKLM
Sun 26/118:25IAD - LHR
Nonstop7h 30mKLM
Deal found 18/12£565

Find flights from London to Washington, D.C. within your budget

Customise your flight search to find flights from London to Washington, D.C. 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 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Mon 20/1

11:00-17:00

1 stop11h 00m

Baltimore/Washington

Tue 13/5

18:50-10:40

1 stop10h 50m

£392

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Wed 5/2

07:25-17:00

1 stop14h 35m

Baltimore/Washington

Mon 17/2

18:10-15:30

1 stop16h 20m

£392

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 28/1

20:40-17:00

1 stop25h 20m

Baltimore/Washington

Wed 23/4

18:50-14:40

1 stop14h 50m

£394

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 14/1

11:00-13:48

2 stops31h 48m

Baltimore/Washington

Sun 19/1

18:10-10:00

1 stop10h 50m

£398

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 12/2

08:25-20:59

1 stop17h 34m

Washington, D.C. Reagan-National

Thu 20/2

15:35-05:55

1 stop9h 20m

£441

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 1/3

11:55-18:25

1 stop11h 30m

Washington, D.C. Dulles Intl

Thu 27/3

20:40-10:55

1 stop10h 15m

£446

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Wed 5/2

15:25-18:45

Nonstop8h 20m

Baltimore/Washington

Mon 17/2

13:48-10:15

2 stops15h 27m

£449

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 16/1

12:05-16:25

1 stop33h 20m

Washington, D.C. Dulles Intl

Sat 18/1

12:45-20:35

1 stop26h 50m

£460

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 18/1

18:00-08:57

1 stop19h 57m

Washington, D.C. Reagan-National

Tue 21/1

18:00-09:10

1 stop10h 10m

£461

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 9/6

12:10-19:52

1 stop12h 42m

Washington, D.C. Reagan-National

Mon 16/6

17:45-09:35

1 stop10h 50m

£469

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 60 results
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Best time to book a flight from London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Travel insights for flights from London to Washington, D.C.

Get recent, data-driven insights about flights from London to Washington, D.C. including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from London to Washington, D.C.. Price data was last updated on 13 December 2024.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from London to Washington, D.C. (average of £599). Flying from London to Washington, D.C. in July is currently the most expensive (average of £938). 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 WAS?

Find hourly flight availability from London to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 December 2024.

A simple way to save on the total cost of your ticket is to fly from London to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from London to Washington, D.C.?

Use this chart to determine the cheapest time to fly return from London to Washington, D.C.. Price data was last updated on 23 June 2024.

Travellers seeking maximum savings on their London to Washington, D.C. flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Washington, D.C.

Explore weekly flight availability from London to Washington, D.C.. 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 19 December 2024.

The most flights from LON to WAS are scheduled on a Tuesday (27 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. 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 Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 19 December 2024.
Get a feel of what it's like to fly with Icelandair, Lufthansa and TAP AIR PORTUGAL from London to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

8.0
Very Good
8,604 reviews
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

7.8
Good
1,349 reviews
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

7.7
Good
1,285 reviews
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

7.6
Good
1,605 reviews
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

7.6
Good
788 reviews
8.0
Very Good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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 Washington, D.C.. 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 flying from London to Washington, D.C. round-trip?

    According to our current data, PLAY (£395), Icelandair (£440), and JetBlue (£441) offers the cheapest pricing from London to Washington, D.C.. Users have found that PLAY is 29% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London to Washington, D.C. one-way?

    For one-way options, check prices for PLAY. According to our data, you can fly for as low as £289. Users have also found prices from £323 and £379 on WorldTicket and Icelandair, respectively.

  • What are the most popular routes from London to Washington, D.C.?

  • What are the most reliable airlines from London to Washington, D.C.?

    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 London to Washington, D.C. on time: Air Canada (89%), Austrian Airlines (89%), Copa Airlines (89%).

  • What are the cheapest flights from London to Washington, D.C.?

    While on average a flight from London to Washington, D.C. is generally £1,315, our data shows the cheapest flight currently is £508. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £447 for that flight.

  • Where are the most common stopover locations when flying from London to Washington, D.C.?

  • What are some popular things to do or see while on a stopover in Reykjavik?

    If you're on a stopover in Reykjavik and looking for things to do, consider visiting Hallgrímskirkja, National Cathedral, or Harpa. Travelers on a layover in Reykjavik can visit Hallgrímskirkja, National Cathedral, and Harpa, by traveling 23.2 mi, 23.0 mi, and 23.3 mi, respectively after landing at Reykjavik Keflavik Intl. Travellers can book a car hire at Reykjavik Keflavik Intl for about £36 per day to make their sightseeing more efficient.

  • Where are the least popular stopover locations for London to Washington, D.C. flights?

  • Can I find deals for flights from London to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on London to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Washington, D.C.?

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

  • Can I find deals for business class flights from London to Washington, D.C.?

    Yes. Cheapflights offers flight deals from London to Washington, D.C. 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 Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from London to Washington, D.C. (average of £599). Flying from London to Washington, D.C. in July is currently the most expensive (average of £938). 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

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Fly from London to Washington, D.C. on these airlines

Choose from the following airlines for your flight from London to Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on 19 December 2024.

Top 10 airlines flying from London to Washington, D.C.

Discover the top 10 airlines that operate flights from London to Washington, D.C.. 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 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£248Average£450FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£338Average£664FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest£356Average£552FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£372Average£571FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£400Average£632FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£404Average£757FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£416Average£601FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
American AirlinesCheapest£419Average£776FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£432Average£651FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£454Average£689FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Washington, D.C.?

When you search for this flight from London to Washington, D.C., Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from London to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Washington, D.C. with no change fees?

Need flexible booking options for your flight to Washington, D.C. from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Washington, D.C. become cheaper?

Of course! You can now track prices for flights from London to Washington, D.C. 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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