Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Washington from £414

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEA
22 Dec — 29 Dec1
1 adult

Cheap flight deals from London to Washington

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Washington (USWA). 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 17 December 2024.

Round-trip from

£515

One-way from

£414
27/1-11/2
  • 27/1-11/2
  • 4 total stops
  • 36h 45m total
  • London to Washington
Search Deals
27/2
  • 27/2
  • 2 total stops
  • 18h 30m total
  • London to Washington
Search Deals

Find flight deals from London to Washington

Cheapest flights from London to Washington
Explore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 December 2024.

Tue 31/1209:10LHR - SEA
1 stop33h 35mDelta
Fri 31/106:00SEA - LHR
2 stops18h 45mDelta
Deal found 17/12£620
Tue 31/1213:15LHR - SEA
Nonstop10h 00mVirgin Atlantic
Fri 31/117:45SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 17/12£650
Tue 31/1210:45LHR - PDX
1 stop20h 10mDelta
Tue 14/112:45PDX - LHR
1 stop13h 50mDelta
Deal found 16/12£659
Tue 31/1210:40LHR - PDX
1 stop18h 35mAmerican Airlines
Tue 14/118:30PDX - LHR
Nonstop9h 40mAmerican Airlines
Deal found 16/12£668
Mon 30/1209:10LHR - PDX
1 stop19h 11mVirgin Atlantic
Mon 13/111:30PDX - LHR
2 stops14h 30mVirgin Atlantic
Deal found 16/12£679
Sun 29/1211:10LHR - PDX
2 stops30h 24mAir Canada
Wed 15/110:10PDX - LHR
1 stop16h 00mAir Canada
Deal found 16/12£682
Tue 31/1211:35LHR - SEA
2 stops31h 55mLufthansa
Fri 31/106:10SEA - LHR
2 stops17h 20mLufthansa
Deal found 17/12£683
Mon 30/1209:10LHR - PDX
1 stop19h 11mKLM
Tue 14/113:30PDX - LHR
1 stop12h 30mKLM
Deal found 16/12£684
Tue 24/1212:00LGW - PDX
1 stop33h 49mMultiple Airlines
Tue 14/106:41PDX - LGW
1 stop15h 19mMultiple Airlines
Deal found 16/12£688
Mon 30/1210:40LHR - SEA
1 stop18h 38mIberia
Mon 6/114:13SEA - LHR
1 stop32h 07mIberia
Deal found 16/12£705
Mon 30/1210:40LHR - SEA
1 stop18h 39mBritish Airways
Mon 6/114:13SEA - LHR
1 stop32h 07mBritish Airways
Deal found 16/12£706
Tue 31/1211:35LHR - SEA
2 stops31h 55mUnited Airlines
Fri 31/109:00SEA - LHR
2 stops14h 55mUnited Airlines
Deal found 17/12£715

Find flights from London to Washington within your budget

Customise your flight search to find flights from London to Washington 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 17 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

06:30-18:25

2 stops19h 55m

Seattle/Tacoma Intl

Tue 11/2

09:20-10:10

2 stops16h 50m

£515

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 13/1

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Sun 26/1

14:35-10:55

1 stop12h 20m

£516

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 23/1

07:05-17:00

2 stops17h 55m

Seattle/Tacoma Intl

Wed 29/1

14:35-21:40

2 stops23h 05m

£517

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 23/1

14:05-17:00

2 stops34h 55m

Seattle/Tacoma Intl

Wed 29/1

14:35-19:30

3 stops20h 55m

£518

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 17/2

13:15-15:15

Nonstop10h 00m

Seattle/Tacoma Intl

Sun 23/2

21:40-10:00

1 stop28h 20m

£520

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 27/1

18:45-22:53

2 stops36h 08m

Seattle/Tacoma Intl

Tue 11/2

15:25-17:50

2 stops18h 25m

£521

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

11:10-13:20

1 stop34h 10m

Seattle/Tacoma Intl

Tue 11/2

10:35-09:20

2 stops14h 45m

£521

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

13:15-15:15

Nonstop10h 00m

Seattle/Tacoma Intl

Tue 11/2

17:45-11:10

Nonstop9h 25m

£522

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

20:05-22:53

2 stops34h 48m

Seattle/Tacoma Intl

Tue 11/2

15:25-17:50

2 stops18h 25m

£524

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

14:50-20:31

2 stops37h 41m

Seattle/Tacoma Intl

Tue 11/2

08:00-10:50

1 stop18h 50m

£525

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from London to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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

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

What is the cheapest month to book a flight from London to State of Washington?

Currently, January is the cheapest month in which you can book a flight from London to State of Washington (average of £622). Flying from London to State of Washington in July is currently the most expensive (average of £845). 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 WA?

Find hourly flight availability from London to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 December 2024.

When flying from London to State of Washington, 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 State of Washington

Explore weekly flight availability from London to Washington. 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 17 December 2024.

The most flights from LON to USWA are scheduled on a Tuesday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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. Reviews last updated 17 December 2024.
See what other customers who have flown with Lufthansa, British Airways and KLM from London to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Delta
8.0
Very Good
8,615 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Air New Zealand
8.0
Very Good
497 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

KLM
7.8
Good
1,351 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

Finnair
7.7
Good
1,287 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

SWISS
7.6
Good
1,607 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

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. 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 State of Washington one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £414. Aer Lingus flights start at £417 while deals on WestJet start at £420 one-way.

  • What are the most popular routes from London to State of Washington?

    While some choose either London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl, London Heathrow - Seattle/Tacoma Intl is the most popular route from London to State of Washington.

  • What are the most reliable airlines from London to State of Washington?

    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 State of Washington on time: Air France (73%), Delta (73%), Virgin Atlantic (73%).

  • What are the cheapest flights from London to State of Washington?

    On average you can expect to pay £2,151 for a flight from London to State of Washington. The cheapest flight overall is £459 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £452.

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

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

  • How can I find direct flights from London to Washington?

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

  • Can I find deals for business class flights from London to Washington?

    Yes. Cheapflights offers flight deals from London to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London to State of Washington (average of £622). Flying from London to State of Washington in July is currently the most expensive (average of £845). 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 Washington

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
London City to John F Kennedy Intl flights
Gatwick to Newark flights
London City to Newark flights
Heathrow to Los Angeles flights
Heathrow to Miami flights
Stansted to Stewart flights
Luton to John F Kennedy Intl flights
Heathrow to Orlando flights
Heathrow to Las Vegas flights
Manchester to John F Kennedy Intl flights
Luton to Newark flights
Stansted to John F Kennedy Intl flights
Heathrow to Dulles Intl flights
Gatwick to LaGuardia flights
Heathrow to San Francisco flights
Heathrow to Seattle flights
Heathrow to Dallas/Fort Worth flights
Stansted to Newark flights
Heathrow to Baltimore flights
Gatwick to Orlando flights
Heathrow to Boston flights
Heathrow to Hobby flights
Gatwick to Los Angeles flights
Heathrow to O'Hare Intl flights
London City to Los Angeles flights
Luton to Stewart flights
Heathrow to George Bush Intcntl flights
Heathrow to Tampa flights
London City to Miami flights
Manchester to Newark flights
Heathrow to Nashville flights
Manchester to Orlando flights
Heathrow to Atlanta flights
Edinburgh to Newark flights
Manchester to LaGuardia flights
Heathrow to Austin flights
Heathrow to Ontario flights
Heathrow to Denver flights
London City to Las Vegas flights
Heathrow to San Diego flights
Heathrow to Charlotte flights
London City to Orlando flights
Gatwick to Dulles Intl flights
London City to Dulles Intl flights
Edinburgh to John F Kennedy Intl flights
Gatwick to San Francisco flights

Top 10 airlines flying from London to Washington

Discover the top 10 airlines that operate flights from London to Washington. 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 17 December 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£307Average£935FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest£313Average£652FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£388Average£559FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£407Average£598FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£420Average£660FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£436Average£577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£437Average£687FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£465Average£717FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£465Average£805FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£477Average£629FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Washington?

Deals for London to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Washington?

Cheapflights simply makes it quick and affordable to book flights from London to Washington 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 with no change fees?

Yes, we can. To see specific flights from London to Washington 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 London to Washington become cheaper?

Yes! Start tracking prices for London to Washington flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.