How long is the flight from London to State of Washington?

There are many flights that can get you from London to State of Washington in 13h. Fly via United Airlines, Icelandair, or Lufthansa to get the fastest option. The distance between London and State of Washington is about 4807 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from London to State of Washington one-way?

To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £371. WestJet flights start at £377 while deals on Aer Lingus start at £455 one-way.

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.

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).

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 cheapest flights from London to State of Washington?

On average you can expect to pay £1,530 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 £379.

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: Scandinavian Airlines (93%), KLM (89%), Air France (89%).

What are the most popular airlines that fly from London to State of Washington?

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from London to State of Washington.

How far in advance should I book a flight from London to State of Washington?

Find a great deal and save up to 41% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to State of Washington within the next two weeks, with the cheapest ticket starting at £545.

What is the cheapest month to fly from London to State of Washington?

January can be a great time to fly to State of Washington from London with a flight ticket averaging about £547. Cheapflights users have found deals in the month of January for as cheap as £323. The most expensive prices can be found in the month of August.

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.

£343+ Cheap Flights from London to Washington

Q: How much does it cost for a return flight from London to State of Washington?

Airfare is below average for this route at the moment. London to State of Washington flights typically cost between £463 and £569 in September. The cheapest return flight price found within the last 3 days was £445 on Air Canada (27 Sept-1 Oct).

Cheap flight deals from London to Washington

Round-trip from	£445
One-way from	£343
Popular in	August
Cheapest in	January
Average price	£512
Good round-trip deal	£516 or less
Good one-way deal	£584 or less

Air Canada
27/9-1/10
4 total stops
35h 06m total
London to Washington

Search Deals

12/12
3 total stops
58h 14m total
London to Washington

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Washington.

Search Deals

Price to beat on a one-way flight from London (LON) 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 12 September 2025.

Sat 27/908:30LHR - SEA

2 stops18h 06mAir Canada

Wed 1/1005:30SEA - LHR

2 stops17h 00mAir Canada

Deal found 11/9£445

Thu 16/1015:40LGW - SEA

1 stop13h 00mIcelandair

Mon 20/1019:00SEA - LGW

1 stop11h 35mIcelandair

Deal found 11/9£446

Sun 21/912:20LHR - SEA

1 stop16h 34mUnited Airlines

Sun 28/907:00SEA - LHR

1 stop16h 25mUnited Airlines

Deal found 11/9£446

Mon 22/906:30LHR - SEA

2 stops15h 46mUnited Airlines

Thu 2/1007:00SEA - LHR

2 stops18h 20mUnited Airlines

Deal found 11/9£447

Mon 3/1115:35LHR - SEA

2 stops51h 00mFinnair

Sun 16/1100:59SEA - LHR

1 stop23h 16mFinnair

Deal found 11/9£447

Tue 7/1015:40LGW - SEA

1 stop13h 00mIcelandair

Mon 10/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 11/9£448

Wed 17/912:30LHR - SEA

1 stop17h 34mFinnair

Wed 24/913:50SEA - LHR

1 stop14h 55mFinnair

Deal found 10/9£448

Sun 5/1006:30LHR - SEA

1 stop13h 25mLufthansa

Wed 10/1207:00SEA - LHR

2 stops18h 40mLufthansa

Deal found 10/9£449

Sat 18/1015:40LGW - SEA

1 stop13h 00mIcelandair

Fri 24/1015:45SEA - LGW

1 stop14h 55mIcelandair

Deal found 11/9£450

Mon 22/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 6/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 11/9£450

Sat 20/909:50LGW - SEA

2 stops59h 02mMultiple Airlines

Sat 4/1021:39SEA - LGW

1 stop29h 16mMultiple Airlines

Deal found 10/9£450

Tue 2/1209:25LHR - SEA

Nonstop10h 05mBritish Airways

Tue 9/1213:25SEA - LHR

Nonstop9h 35mBritish Airways

Deal found 12/9£450

Best flights from London to Washington
Discover carefully curated flight deals from London to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Mon 22/906:30LHR - SEA

2 stops15h 46mUnited Airlines

Thu 2/1015:35SEA - LHR

1 stop12h 45mUnited Airlines

Deal found 11/9£447

Tue 7/1015:40LGW - SEA

1 stop13h 00mIcelandair

Tue 11/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 11/9£448

Sun 5/1008:40LHR - SEA

1 stop35h 10mDelta

Thu 11/1219:20SEA - LHR

Nonstop9h 30mDelta

Deal found 10/9£461

Tue 2/1209:25LHR - SEA

Nonstop10h 05mBritish Airways

Tue 9/1213:28SEA - LHR

1 stop12h 57mBritish Airways

Deal found 11/9£461

Thu 20/1105:55STN - SEA

2 stops19h 05mMultiple Airlines

Thu 4/1214:35SEA - STN

2 stops24h 35mMultiple Airlines

Deal found 10/9£470

Thu 13/1118:15LCY - SEA

1 stop25h 55mLufthansa

Mon 17/1114:00SEA - LCY

1 stop19h 40mLufthansa

Deal found 10/9£474

Mon 3/1120:05LCY - SEA

1 stop23h 40mVirgin Atlantic

Mon 17/1115:00SEA - LCY

1 stop18h 20mVirgin Atlantic

Deal found 11/9£495

Sat 11/1009:30LHR - PDX

2 stops21h 31mAir Canada

Sat 18/1009:55PDX - LHR

2 stops15h 40mAir Canada

Deal found 11/9£557

Tue 14/1006:40LHR - PDX

3 stops24h 13mScandinavian Airlines

Tue 21/1012:25PDX - LHR

3 stops21h 15mScandinavian Airlines

Deal found 11/9£599

Sat 15/1107:30LHR - SEA

2 stops23h 12mUnited Airlines

Fri 21/1123:59SEA - LHR

2 stops23h 11mUnited Airlines

Deal found 12/9£447

Sat 18/1015:40LGW - SEA

1 stop13h 00mIcelandair

Fri 24/1015:45SEA - LGW

1 stop14h 55mIcelandair

Deal found 11/9£450

Tue 7/1009:55LHR - SEA

1 stop14h 10mDelta

Mon 10/1116:48SEA - LHR

Nonstop9h 42mDelta

Deal found 11/9£461

Direct flights from London to Washington
Explore direct flight options from London to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2025.

Mon 22/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 6/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 11/9£450

Tue 2/1209:25LHR - SEA

Nonstop10h 05mBritish Airways

Tue 9/1213:25SEA - LHR

Nonstop9h 35mBritish Airways

Deal found 12/9£450

Wed 8/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 14/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 10/9£456

Tue 7/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 4/1119:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 10/9£458

Sat 1/1112:20LHR - SEA

Nonstop10h 25mVirgin Atlantic

Thu 13/1119:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 11/9£470

Fri 19/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Thu 25/917:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 11/9£471

Thu 18/917:25LHR - SEA

Nonstop10h 25mVirgin Atlantic

Tue 7/1020:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 9/9£472

Wed 8/1009:50LHR - SEA

Nonstop9h 45mAmerican Airlines

Wed 15/1020:20SEA - LHR

Nonstop9h 20mAmerican Airlines

Deal found 10/9£472

Wed 29/1012:20LHR - SEA

Nonstop10h 25mDelta

Thu 6/1119:20SEA - LHR

Nonstop9h 30mDelta

Deal found 11/9£474

Mon 9/213:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Fri 13/217:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 11/9£526

Tue 14/1015:40LHR - PDX

Nonstop9h 55mBritish Airways

Tue 21/1019:25PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 11/9£530

Mon 27/1013:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Mon 3/1117:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 12/9£546

Last-minute flights from London to Washington
Discover last-minute flight deals from London to Washington. Data last updated 12 September 2025 and is based on user searches.

Wed 17/912:30LHR - SEA

1 stop17h 34mFinnair

Wed 24/913:50SEA - LHR

1 stop14h 55mFinnair

Deal found 10/9£448

Thu 18/906:00LHR - SEA

2 stops24h 16mAir Canada

Sat 27/919:15SEA - LHR

2 stops32h 35mAir Canada

Deal found 10/9£447

Thu 18/906:30LHR - SEA

1 stop13h 25mLufthansa

Sat 27/913:12SEA - LHR

1 stop13h 28mLufthansa

Deal found 10/9£450

Sat 20/909:50LGW - SEA

2 stops59h 02mMultiple Airlines

Sat 4/1021:39SEA - LGW

1 stop29h 16mMultiple Airlines

Deal found 10/9£450

Sun 21/912:20LHR - SEA

1 stop16h 34mUnited Airlines

Sun 28/907:00SEA - LHR

1 stop16h 25mUnited Airlines

Deal found 11/9£446

Mon 22/906:30LHR - SEA

2 stops15h 46mUnited Airlines

Thu 2/1007:00SEA - LHR

2 stops18h 20mUnited Airlines

Deal found 11/9£447

Mon 22/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 6/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 11/9£450

Sat 27/908:30LHR - SEA

2 stops18h 06mAir Canada

Wed 1/1005:30SEA - LHR

2 stops17h 00mAir Canada

Deal found 11/9£445

Sun 5/1006:30LHR - SEA

1 stop13h 25mLufthansa

Wed 10/1207:00SEA - LHR

2 stops18h 40mLufthansa

Deal found 10/9£449

Tue 7/1015:40LGW - SEA

1 stop13h 00mIcelandair

Wed 12/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 11/9£448

Thu 16/1015:40LGW - SEA

1 stop13h 00mIcelandair

Mon 20/1019:00SEA - LGW

1 stop11h 35mIcelandair

Deal found 11/9£446

Sat 18/1015:40LGW - SEA

1 stop13h 00mIcelandair

Fri 24/1015:45SEA - LGW

1 stop14h 55mIcelandair

Deal found 11/9£450

One-way flights from London to Washington
Search for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Fri 12/1221:45LGW - GEG

3 stops58h 14mMultiple Airlines

Deal found 11/9£343

Tue 28/1014:50LHR - SEA

1 stop30h 30mWestJet

Deal found 10/9£368

Sun 7/1207:55LGW - SEA

3 stops38h 36mMultiple Airlines

Deal found 11/9£369

Wed 1/1020:20STN - SEA

3 stops42h 55mMultiple Airlines

Deal found 10/9£369

Tue 16/915:50LHR - SEA

1 stop34h 00mAer Lingus

Deal found 11/9£369

Wed 24/914:10LHR - SEA

1 stop25h 05mMultiple Airlines

Deal found 10/9£370

Wed 1/1013:05LGW - SEA

1 stop16h 46mMultiple Airlines

Deal found 10/9£371

Mon 8/1214:55LHR - SEA

Nonstop10h 00mBritish Airways

Deal found 10/9£371

Fri 26/914:10LHR - SEA

1 stop13h 42mMultiple Airlines

Deal found 10/9£371

Mon 10/1120:30STN - SEA

2 stops28h 30mMultiple Airlines

Deal found 11/9£373

Tue 4/1107:50LHR - SEA

2 stops20h 56mMultiple Airlines

Deal found 11/9£373

Sat 18/1009:25STN - SEA

2 stops19h 15mMultiple Airlines

Deal found 11/9£374

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 22/9

06:30-14:16

2 stops15h 46m

Seattle/Tacoma Intl

Thu 2/10

15:35-12:20

1 stop12h 45m

£447

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 15/11

07:30-22:42

2 stops23h 12m

Seattle/Tacoma Intl

Fri 21/11

23:59-07:10

2 stops23h 11m

£447

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 11/11

14:35-10:55

1 stop12h 20m

£448

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 18/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 24/10

15:45-14:40

1 stop14h 55m

£450

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 7/10

13:05-20:40

1 stop15h 35m

Seattle/Tacoma Intl

Wed 12/11

14:35-19:30

1 stop20h 55m

£451

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 4/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 7/7

15:45-14:40

1 stop14h 55m

£456

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/10

06:30-13:10

1 stop13h 40m

Seattle/Tacoma Intl

Mon 3/11

19:13-21:20

2 stops18h 07m

£457

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 5/10

08:40-11:50

1 stop35h 10m

Seattle/Tacoma Intl

Thu 11/12

19:20-12:50

Nonstop9h 30m

£461

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 7/10

09:55-16:05

1 stop14h 10m

Seattle/Tacoma Intl

Mon 10/11

16:48-10:30

Nonstop9h 42m

£461

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 7/10

09:55-16:05

1 stop14h 10m

Seattle/Tacoma Intl

Wed 12/11

16:48-10:30

Nonstop9h 42m

£461

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 60 results

...

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.

Cheapflights Insights

Everything you need to know about your flight from London to Washington

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 £946). 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?

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

The most flights from LON to USWA are scheduled on a Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost for a return flight from London to State of Washington?

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with KLM, Air France, andVirgin Atlantic from London to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Air France

7.4

Good

1,469 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Virgin Atlantic

7.4

Good

664 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Icelandair

7.0

Good

546 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

British Airways

6.7

Okay

7,361 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

How long is the flight from London to State of Washington?
There are many flights that can get you from London to State of Washington in 13h. Fly via United Airlines, Icelandair, or Lufthansa to get the fastest option. The distance between London and State of Washington is about 4807 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from London to State of Washington one-way?
To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £371. WestJet flights start at £377 while deals on Aer Lingus start at £455 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: Scandinavian Airlines (93%), KLM (89%), Air France (89%).
What are the cheapest flights from London to State of Washington?
On average you can expect to pay £1,530 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 £379.
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 £946). 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

Alternative routes for London to Washington

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Complete your trip

State of Washington car hire

Seattle/Tacoma Intl Airport car hire

Spokane Airport car hire

Pasco Tri Cities Airport car hire

Bellingham Airport car hire

Wenatchee Pangborn Field Airport car hire

Pullman Moscow Regional Airport car hire

Yakima Air Terminal Airport car hire

Walla Walla Airport car hire

Kenmore Air Harbor Airport car hire

Seattle car hire

Bellingham car hire

Direct flights to United States

London to Washington flights

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Heathrow to Portland flights

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London City to Portland flights

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Gatwick to Spokane flights

Heathrow to Spokane flights

London City to Spokane flights

Luton to Portland flights

Heathrow to Pasco flights

Heathrow to Bellingham flights

Southend to Seattle flights

Top 10 airlines flying from London to Washington

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£323	Average£495	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air France	Cheapest£381	Average£569	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Lufthansa	Cheapest£392	Average£537	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£394	Average£537	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£401	Average£596	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£402	Average£613	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£403	Average£654	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
British Airways	Cheapest£425	Average£769	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£436	Average£616	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Delta	Cheapest£441	Average£590	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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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.

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Cheap flights from London to Washington from £343

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Washington

Keep the following information in mind while searching for London to Washington flight deals. Data was last updated 12 September 2025.

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One-way from

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Good one-way deal

Find flight deals from London to Washington

Cheapest flights from London to WashingtonExplore 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 12 September 2025.

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 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Washington that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from London to Washington

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

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 12 September 2025.

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 12 September 2025.

How much does it cost for a return flight from London to State of Washington?

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with KLM, Air France, andVirgin Atlantic from London to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from London to State of Washington?

What are the cheapest airlines to fly from London to State of Washington one-way?

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

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

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

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

How can I find direct flights from London to Washington?

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

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

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.

Top 10 airlines flying from London to Washington

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?

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

Can Cheapflights find flights from London to Washington with no change fees?

Can Cheapflights notify me if prices for flights from London to Washington become cheaper?

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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 12 September 2025.