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 10h 30m. Fly via SWISS, Delta, or United Airlines to get the fastest option. The distance between London and State of Washington is about 4783 mi. This flight may include one or multiple stops.

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 £1,825 for a flight from London to State of Washington. The cheapest flight overall is £312 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £300.

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 (82%), American Airlines (75%), KLM (75%).

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

Consider Virgin Atlantic, British Airways or Alaska Airlines when booking your flight. These represent the most popular airlines when flying from London to State of Washington.

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.

£376+ Cheap Flights from London to Washington

Cheap flight deals from London to Washington

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 1 September 2026.

Mon 21/1211:55 -

1 stop13h 05m

Sun 27/1214:35 -

1 stop12h 20m

Deal found 1/9£507

Thu 5/1112:20 -

Nonstop10h 30m

Fri 20/1108:30 -

1 stop14h 35m

Deal found 1/9£509

Tue 29/909:15 -

2 stops17h 17m

Tue 6/1007:00 -

2 stops21h 35m

Deal found 1/9£513

Tue 22/1220:25 -

2 stops29h 03m

Mon 4/114:25 -

1 stop15h 25m

Deal found 1/9£513

Tue 22/1206:20 -

1 stop15h 30m

Sat 2/116:55 -

Nonstop9h 45m

Deal found 1/9£515

Tue 13/1007:05 -

2 stops21h 35m

Tue 20/1019:00 -

3 stops30h 20m

Deal found 29/8£515

Sun 6/1211:55 -

1 stop13h 05m

Thu 10/1214:35 -

1 stop12h 20m

Deal found 30/8£516

Sun 27/910:15 -

1 stop14h 44m

Sun 4/1018:50 -

1 stop12h 45m

Deal found 30/8£516

Tue 13/1006:30 -

2 stops18h 07m

Tue 20/1012:30 -

2 stops17h 20m

Deal found 29/8£516

Sat 3/1015:40 -

1 stop13h 00m

Thu 8/1019:00 -

1 stop11h 40m

Deal found 31/8£517

Thu 29/1011:10 -

2 stops19h 07m

Thu 5/1108:40 -

2 stops18h 40m

Deal found 28/8£517

Thu 1/1019:55 -

2 stops25h 50m

Wed 28/1015:35 -

1 stop12h 20m

Deal found 29/8£517

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 1 September 2026.

Wed 28/1020:05 -

2 stops34h 13m

Wed 4/1115:35 -

2 stops18h 15m

Deal found 28/8£531

Sun 1/1112:20 -

Nonstop10h 30m

Wed 4/1116:50 -

Nonstop9h 50m

Deal found 1/9£534

Mon 11/107:30 -

2 stops23h 09m

Mon 17/519:10 -

2 stops18h 15m

Deal found 31/8£541

Fri 23/1009:20 -

2 stops20h 38m

Mon 2/1114:35 -

1 stop18h 45m

Deal found 30/8£568

Tue 13/1005:40 -

2 stops18h 00m

Sat 24/1018:50 -

2 stops20h 35m

Deal found 30/8£594

Sun 6/1211:55 -

1 stop13h 05m

Thu 10/1214:45 -

1 stop12h 10m

Deal found 27/8£655

Sun 1/1113:35 -

Nonstop10h 15m

Sun 15/1117:45 -

Nonstop9h 35m

Deal found 27/8£689

Mon 30/1113:35 -

Nonstop10h 15m

Mon 7/1208:00 -

1 stop15h 50m

Deal found 31/8£693

Thu 10/1206:40 -

2 stops24h 04m

Mon 14/1211:01 -

3 stops22h 39m

Deal found 1/9£693

Thu 18/210:55 -

2 stops43h 34m

Wed 3/311:00 -

2 stops38h 55m

Deal found 29/8£723

Sun 1/1120:15 -

2 stops30h 32m

Sun 15/1111:53 -

2 stops19h 07m

Deal found 27/8£798

Tue 15/910:00 -

1 stop14h 35m

Tue 29/913:50 -

1 stop11h 40m

Deal found 31/8£824

Wed 28/1006:00 -

2 stops24h 17m

Fri 6/1113:16 -

2 stops20h 34m

Deal found 28/8£531

Fri 30/1012:20 -

Nonstop10h 34m

Tue 3/1108:25 -

1 stop14h 40m

Deal found 28/8£572

Fri 20/1117:50 -

1 stop25h 57m

Sun 13/1214:35 -

1 stop18h 00m

Deal found 1/9£582

Tue 13/1009:40 -

1 stop15h 30m

Tue 20/1019:10 -

1 stop12h 20m

Deal found 29/8£595

Mon 30/1111:55 -

1 stop13h 05m

Thu 3/1214:45 -

1 stop12h 10m

Deal found 31/8£656

Tue 29/909:25 -

2 stops19h 36m

Thu 15/1007:00 -

2 stops17h 25m

Deal found 27/8£602

Fri 9/1007:45 -

2 stops21h 15m

Thu 22/1012:45 -

1 stop12h 55m

Deal found 28/8£683

Wed 18/1113:35 -

Nonstop10h 15m

Sun 13/1211:57 -

1 stop34h 53m

Deal found 1/9£706

Wed 21/1015:40 -

Nonstop10h 00m

Fri 6/1107:00 -

1 stop19h 00m

Deal found 27/8£718

Thu 24/910:20 -

1 stop13h 40m

Mon 28/909:57 -

2 stops24h 53m

Deal found 28/8£654

Fri 30/1007:05 -

3 stops22h 14m

Fri 6/1113:06 -

2 stops21h 24m

Deal found 27/8£729

Thu 18/206:30 -

1 stop18h 40m

Wed 3/311:00 -

2 stops27h 35m

Deal found 29/8£735

Tue 15/909:15 -

2 stops17h 17m

Mon 28/907:00 -

2 stops21h 35m

Deal found 31/8£610

Wed 23/1211:35 -

2 stops19h 43m

Fri 1/105:00 -

1 stop20h 40m

Deal found 30/8£690

Mon 28/910:25 -

2 stops20h 55m

Sun 11/1007:24 -

2 stops18h 01m

Deal found 28/8£704

Wed 7/1015:40 -

Nonstop10h 00m

Wed 14/1019:30 -

Nonstop9h 30m

Deal found 29/8£712

Fri 9/1008:40 -

2 stops19h 22m

Thu 22/1011:25 -

2 stops15h 05m

Deal found 1/9£725

Thu 8/1006:05 -

2 stops17h 55m

Mon 12/1018:10 -

2 stops20h 05m

Deal found 1/9£660

Find flight deals from London to Washington

Round-trip from	£503
One-way from	£376
Popular in	August
Cheapest in	February
Average price	£541
Good round-trip deal	£552 or less
Good one-way deal	£438 or less

Air France
21/12-2/1
Nonstop
20h 15m total
London to Washington

Search Deals

10/9
2 total stops
39h 10m total
London to Washington

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Wed 28/10

20:05-23:18

2 stops34h 13m

Seattle/Tacoma Intl

Wed 4/11

15:35-17:50

2 stops18h 15m

£531

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Wed 28/10

06:00-23:17

2 stops24h 17m

Seattle/Tacoma Intl

Fri 6/11

13:16-17:50

2 stops20h 34m

£531

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Sun 1/11

12:20-14:50

Nonstop10h 30m

Seattle/Tacoma Intl

Wed 4/11

16:50-10:40

Nonstop9h 50m

£534

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Mon 11/1

07:30-22:39

2 stops23h 09m

Seattle/Tacoma Intl

Mon 17/5

19:10-21:25

2 stops18h 15m

£541

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Fri 23/10

09:20-21:58

2 stops20h 38m

Seattle/Tacoma Intl

Mon 2/11

14:35-17:20

1 stop18h 45m

£568

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Fri 30/10

12:20-15:54

Nonstop10h 34m

Seattle/Tacoma Intl

Tue 3/11

08:25-07:05

1 stop14h 40m

£572

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Fri 20/11

17:50-11:47

1 stop25h 57m

Seattle/Tacoma Intl

Sun 13/12

14:35-16:35

1 stop18h 00m

£582

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 13/10

05:40-15:40

2 stops18h 00m

Seattle/Tacoma Intl

Sat 24/10

18:50-22:25

2 stops20h 35m

£594

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 13/10

09:40-17:10

1 stop15h 30m

Seattle/Tacoma Intl

Tue 20/10

19:10-15:30

1 stop12h 20m

£595

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 29/9

09:25-21:01

2 stops19h 36m

Seattle/Tacoma Intl

Thu 15/10

07:00-08:25

2 stops17h 25m

£602

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LCY-SEA

STN-SEA

LGW-SEA

LHR-SEA

LTN-SEA

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

LON-USWA

LCY-SEA

STN-SEA

LGW-SEA

LHR-SEA

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

Currently, February is the cheapest month in which you can book a flight from London to State of Washington (average of £492). Flying from London to State of Washington in December is currently the most expensive (average of £650). 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 Friday (24 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

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

Airfare is typical for this route at the moment.

London to State of Washington flights typically cost between £473 and £626 in December.
The cheapest return price found within the last 5 days was £503 on Air France (21 Dec–2 Jan).

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

The best time to book flights from London to State of Washington is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with Alaska Airlines,KLM, 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.

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Alaska Airlines

7.9

Good

12,866 reviews

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

KLM

7.8

Good

1,570 reviews

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

Virgin Atlantic

7.4

Good

695 reviews

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

Icelandair

6.9

Okay

738 reviews

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

British Airways

6.7

Okay

8,195 reviews

Alaska Airlines

7.9

Good

12,866 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

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 10h 30m. Fly via SWISS, Delta, or United Airlines to get the fastest option. The distance between London and State of Washington is about 4783 mi. This flight may include one or multiple stops.
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 (82%), American Airlines (75%), KLM (75%).
What are the cheapest flights from London to State of Washington?
On average you can expect to pay £1,825 for a flight from London to State of Washington. The cheapest flight overall is £312 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £300.
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, February is the cheapest month in which you can book a flight from London to State of Washington (average of £492). Flying from London to State of Washington in December is currently the most expensive (average of £650). 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

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for London to Washington

Heathrow to John F Kennedy Intl flights

Heathrow to Newark flights

Gatwick to John F Kennedy Intl flights

Heathrow to LaGuardia flights

Gatwick to Newark flights

Heathrow to Miami flights

Stansted to John F Kennedy Intl flights

London City to John F Kennedy Intl flights

Heathrow to Orlando flights

Luton to John F Kennedy Intl flights

Heathrow to Los Angeles flights

London City to Newark flights

Gatwick to LaGuardia flights

Luton to Newark flights

Stansted to Newark flights

Manchester to John F Kennedy Intl flights

Heathrow to Boston flights

Manchester to Orlando flights

Heathrow to Las Vegas flights

Heathrow to San Francisco flights

Heathrow to Dallas/Fort Worth flights

Gatwick to Miami flights

Gatwick to Orlando flights

Heathrow to O'Hare Intl flights

Stansted to Miami flights

London City to Miami flights

Stansted to Orlando flights

Heathrow to Dulles Intl flights

Heathrow to Hobby flights

London City to Orlando flights

Manchester to Newark flights

Heathrow to Seattle flights

Manchester to LaGuardia flights

Gatwick to Los Angeles flights

Heathrow to Atlanta flights

Luton to Miami flights

Heathrow to Baltimore flights

Stansted to Los Angeles flights

London City to Los Angeles flights

Heathrow to George Bush Intcntl flights

Gatwick to Boston flights

Heathrow to Tampa flights

Edinburgh to Newark flights

London City to Boston flights

Luton to Orlando flights

Edinburgh to John F Kennedy Intl flights

Heathrow to Nashville flights

Heathrow to Sky Harbor Intl flights

Gatwick to Fort Lauderdale flights

Gatwick to San Francisco flights

Top 10 airlines flying from London to Washington

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£331	Average£368	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£338	Average£513	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£387	Average£627	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
United Airlines	Cheapest£413	Average£485	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£418	Average£782	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£430	Average£606	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Delta	Cheapest£437	Average£644	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air France	Cheapest£446	Average£619	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£449	Average£627	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£466	Average£565	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Fly with Cheapflights

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.

Cheap flights from London to Washington from £376

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 1 September 2026.

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 1 September 2026.

Best flights from London to WashingtonDiscover 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 1 September 2026.

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 1 September 2026.

Direct flights from London to WashingtonExplore direct flight options from London to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 September 2026.

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 1 September 2026.

Last-minute flights from London to WashingtonDiscover last-minute flight deals from London to Washington. Data last updated 1 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Washington. Data last updated 1 September 2026 and is based on user searches.

One-way flights from London to WashingtonSearch for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.

Search for one-way flight options from London to Washington. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.

Find flight deals from London to Washington

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

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 1 September 2026.

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 1 September 2026.

The most flights from LON to USWA are scheduled on a Friday (24 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

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

Airfare is typical for this route at the moment.

London to State of Washington flights typically cost between £473 and £626 in December.The cheapest return price found within the last 5 days was £503 on Air France (21 Dec–2 Jan).

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

The best time to book flights from London to State of Washington is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with Alaska Airlines,KLM, 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

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

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.

Complete your trip

Complete your trip to Washington by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from London to Washington by cabin class

Find flights from London to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Washington flights

Browse other London and Washington flight options. Last updated on 1 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Washington flights

Consider these flights travelling from London to Washington.

Top 10 airlines flying from London to Washington

Fly with Cheapflights

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?

100% Free

Book with Flexibility

Travel Smart

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 1 September 2026.

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 1 September 2026.

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 1 September 2026.

Last-minute flights from London to Washington
Discover last-minute flight deals from London to Washington. Data last updated 1 September 2026 and is based on user searches.

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 1 September 2026.

London to State of Washington flights typically cost between £473 and £626 in December.
The cheapest return price found within the last 5 days was £503 on Air France (21 Dec–2 Jan).