How many flights depart from London to State of Washington on average per week?

The number of flights available between London and State of Washington is 132 per week as of November 2025. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.

What is the cheapest airline that flies from London to Washington?

JetBlue, SWISS, and Lufthansa are the most popular carriers operating from London to Washington

How many flights depart from London to State of Washington on average per day?

The number of flights available between London and State of Washington is 18 per day as of November 2025. The most frequent departure time is 12:00, with 78% of daily flights leaving in the afternoon.

Which airlines fly to State of Washington?

Virgin Atlantic, British Airways and Icelandair are the top three most popular airlines that fly to State of Washington from London according to our data. Virgin Atlantic is the first choice among our users, with 51% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 14 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London to Washington?

Prices for flights from London to Washington are refreshed on a daily basis.

How many operators does momondo search for flights from London to Washington?

As of November 2025, there are 14 operators available to choose from for flights from London to Washington.

How old do you have to be to fly from London to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£288 Cheap Flights from London to Washington in 2025/26

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20:25 - 11:50LHR-SEA

23h 25m1 stop

16:45 - 10:30SEA-LHR

9h 45mdirect

£460Virgin Atlantic

Find Deal

Sun, 11 Jan - Sun, 18 Jan

11:55 - 17:00LGW-SEA

13h 05m1 stop

14:35 - 10:55SEA-LGW

12h 20m1 stop

£461Icelandair

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Tue, 25 Nov - Mon, 1 Dec

12:15 - 17:00LHR-SEA

12h 45m1 stop

14:35 - 10:50SEA-LHR

12h 15m1 stop

£463Icelandair

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Wed, 26 Nov - Mon, 1 Dec

12:15 - 17:00LHR-SEA

12h 45m1 stop

14:35 - 10:50SEA-LHR

12h 15m1 stop

£464Icelandair

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Tue, 18 Nov - Mon, 24 Nov

20:25 - 11:50LHR-SEA

23h 25m1 stop

19:20 - 12:50SEA-LHR

9h 30mdirect

£467Virgin Atlantic

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Fri, 16 Jan - Tue, 20 Jan

14:55 - 16:55LHR-SEA

10h 00mdirect

18:50 - 12:20SEA-LHR

9h 30mdirect

£475British Airways

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Fri, 16 Jan - Tue, 20 Jan

14:55 - 17:55LHR-SEA

10h 00mdirect

14:25 - 07:00SEA-LHR

9h 35mdirect

£477British Airways

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Tue, 10 Mar - Tue, 17 Mar

08:40 - 11:45LCY-SEA

35h 05m1 stop

15:05 - 16:35SEA-LCY

17h 30m1 stop

£589KLM

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Wed, 26 Nov - Sun, 7 Dec

10:00 - 15:50LCY-SEA

13h 50m1 stop

09:30 - 17:20SEA-LCY

23h 50m2 stops

£604KLM

Find Deal

Mon, 30 Mar - Mon, 6 Apr

13:05 - 22:50LHR-GEG

41h 45m2 stops

06:05 - 07:05GEG-LHR

17h 00m1 stop

£814Air France

Find Deal

Fri, 14 Nov - Mon, 24 Nov

Finnair flights from London to State of Washington

Our best Finnair deals on London to State of Washington flight tickets

Finnair

13 Feb

LHR12:10London Heathrow

17h 06m

1 stop

SEA21:16Seattle/Tacoma Intl

23 Feb

SEA05:39Seattle/Tacoma Intl

16h 41m

2 stops

LHR06:20London Heathrow

£493

Find similar

Finnair

10 Mar

LHR15:35London Heathrow

25h 48m

2 stops

SEA10:23Seattle/Tacoma Intl

17 Mar

SEA22:40Seattle/Tacoma Intl

25h 40m

1 stop

LHR07:20London Heathrow

£494

Find similar

Finnair

25 Dec

LHR14:55London Heathrow

10h 00m

SEA16:55Seattle/Tacoma Intl

7 Jan

SEA18:50Seattle/Tacoma Intl

9h 30m

LHR12:20London Heathrow

£508

Find similar

Icelandair flights from London to State of Washington

Our best Icelandair deals on London to State of Washington flight tickets

Icelandair

25 Nov

LGW11:55London Gatwick

13h 05m

1 stop

SEA17:00Seattle/Tacoma Intl

1 Dec

SEA14:35Seattle/Tacoma Intl

12h 20m

1 stop

LGW10:55London Gatwick

£461

Find similar

Icelandair

26 Nov

LHR12:15London Heathrow

12h 45m

1 stop

SEA17:00Seattle/Tacoma Intl

1 Dec

SEA14:35Seattle/Tacoma Intl

12h 15m

1 stop

LHR10:50London Heathrow

£463

Find similar

Icelandair

18 Nov

LHR12:15London Heathrow

12h 45m

1 stop

SEA17:00Seattle/Tacoma Intl

24 Nov

SEA14:35Seattle/Tacoma Intl

12h 15m

1 stop

LHR10:50London Heathrow

£464

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Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 11/1

20:25-11:50

1 stop23h 25m

Seattle/Tacoma Intl

Sun 18/1

16:45-10:30

Nonstop9h 45m

£460

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 25/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 1/12

14:35-10:55

1 stop12h 20m

£461

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 26/11

12:15-17:00

1 stop12h 45m

Seattle/Tacoma Intl

Mon 1/12

14:35-10:50

1 stop12h 15m

£463

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 18/11

12:15-17:00

1 stop12h 45m

Seattle/Tacoma Intl

Mon 24/11

14:35-10:50

1 stop12h 15m

£464

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 16/1

20:25-11:50

1 stop23h 25m

Seattle/Tacoma Intl

Tue 20/1

19:20-12:50

Nonstop9h 30m

£467

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 16/1

14:55-16:55

Nonstop10h 00m

Seattle/Tacoma Intl

Tue 20/1

18:50-12:20

Nonstop9h 30m

£475

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 10/3

14:55-17:55

Nonstop10h 00m

Seattle/Tacoma Intl

Tue 17/3

14:25-07:00

Nonstop9h 35m

£477

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 26/11

08:40-11:45

1 stop35h 05m

Seattle/Tacoma Intl

Sun 7/12

15:05-16:35

1 stop17h 30m

£589

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 30/3

10:00-15:50

1 stop13h 50m

Seattle/Tacoma Intl

Mon 6/4

09:30-17:20

2 stops23h 50m

£604

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Fri 14/11

13:05-22:50

2 stops41h 45m

Spokane

Mon 24/11

06:05-07:05

1 stop17h 00m

£814

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How to get the cheapest flight ticket from London to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £504.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from London to State of Washington is on a Wednesday. Travellers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as £605. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Sunday is £697.

What is the cheapest time of day to depart on your flight to State of Washington?

Flying to State of Washington from London in the evening is the least expensive time of day to depart. momondo users have found prices as low as £531 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to State of Washington is in the morning when prices are around £643.

What is the cheapest London to Washington flight route?

Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Washington flight prices

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

You are more likely to see cheaper flights to State of Washington from London when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around £590 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from London for as low as £553 on momondo.

What cabin class options are available on London to Washington flights?

There are 4 cabin classes available to choose from on London to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to State of Washington flights?

You could potentially save up to 20% on your flight if you consider stops on a London to State of Washington flight.

Cheap London to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to State of Washington

Best price found	£489
Fastest flight time	9h 45m
Direct flights	Every day
Airports in State of Washington	2 airports

The best one-way flight to State of Washington from London in the past 72 hours is £489. The best return flight deal from London to State of Washington found on momondo in the last 72 hours is £560.

The fastest flight from London to State of Washington takes 9h 45m

Direct flights go from London to State of Washington every day.

There are 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)

Search flight deals

When did momondo last update prices for flights from London to Washington?
Prices for flights from London to Washington are refreshed on a daily basis.
How many operators does momondo search for flights from London to Washington?
As of November 2025, there are 14 operators available to choose from for flights from London to Washington.
How old do you have to be to fly from London to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from London to State of Washington is Boeing 787-9 Dreamliner, representing 27.00% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 23.51%, Airbus A330-900neo at 20.29%, and Airbus A330-200 at 10.91%.

Best airlines flying from London to State of Washington

Compare and see reviews for airlines that fly from London to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £351	Free Cancellation	Rating 7.1 568 reviews	Search Icelandair flights
Air France	PriceFrom £394	Free Cancellation	Rating 7.4 1,482 reviews	Search Air France flights
Finnair	PriceFrom £407	Free Cancellation	Rating 7.6 1,335 reviews	Search Finnair flights
Lufthansa	PriceFrom £408	Free Cancellation	Rating 6.8 7,547 reviews	Search Lufthansa flights
KLM	PriceFrom £412	Free Cancellation	Rating 7.7 1,405 reviews	Search KLM flights
United Airlines	PriceFrom £414	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
British Airways	PriceFrom £450	Free Cancellation	Rating 6.7 7,494 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom £452	Free Cancellation	Rating 7.5 671 reviews	Search Virgin Atlantic flights
Delta	PriceFrom £454	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Aer Lingus	PriceFrom £466	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington?

Finding the right flight to Washington from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

Can I find flights from London to Washington with flexible booking policies on momondo?

Flights from London to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Washington?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington.

I’m not ready to book a flight from London to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Washington

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Cheap flights from London to Washington from £288

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Washington departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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Finnair flights from London to State of Washington

Our best Finnair deals on London to State of Washington flight tickets

Icelandair flights from London to State of Washington

Our best Icelandair deals on London to State of Washington flight tickets

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How to get the cheapest flight ticket from London to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £504.

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest London to Washington flight route?

Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Washington flight prices

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

What cabin class options are available on London to Washington flights?

There are 4 cabin classes available to choose from on London to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to State of Washington flights?

You could potentially save up to 20% on your flight if you consider stops on a London to State of Washington flight.

What is the cheapest airline that flies from London to Washington?

JetBlue, SWISS, and Lufthansa are the most popular carriers operating from London to Washington

Which airlines fly to State of Washington?

How many flights depart from London to State of Washington on average per day?

The number of flights available between London and State of Washington is 18 per day as of November 2025. The most frequent departure time is 12:00, with 78% of daily flights leaving in the afternoon.

How many flights depart from London to State of Washington on average per week?

The number of flights available between London and State of Washington is 132 per week as of November 2025. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.

Cheap London to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to State of Washington

Best price found

Fastest flight time

Direct flights

Airports in State of Washington

When did momondo last update prices for flights from London to Washington?

How many operators does momondo search for flights from London to Washington?

How old do you have to be to fly from London to Washington?

What documentation or ID do you need to fly to Washington?

What is the most popular plane model from London to State of Washington?

Best airlines flying from London to State of Washington

Compare and see reviews for airlines that fly from London to State of Washington with momondo

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington?

Can I find flights from London to Washington with flexible booking policies on momondo?

How can momondo help me find flights from London to Washington?

I’m not ready to book a flight from London to Washington right now. Can momondo alert me if prices change?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular Cities in Washington

Popular flights according to clicks in the last 7 days on momondo