Which airlines fly to State of Washington?

Virgin Atlantic, British Airways and Alaska Airlines are the top three most popular airlines that fly to State of Washington from London Heathrow Airport according to our data. Virgin Atlantic is the first choice among our users, with 55% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 13 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

JetBlue, United Airlines, and American Airlines are the most popular carriers operating from London Heathrow to Washington

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

The number of operators available for flights from London Heathrow Airport to Washington is 14 as of July 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Washington.

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

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£308 Cheap Flights from London Heathrow Airport to State of Washington in 2026

Q: How many flights depart from London Heathrow Airport to State of Washington on average per week?

As of July 2026, 195 flights take off from London Heathrow Airport and land in State of Washington each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.

Q: How many flights depart from London Heathrow Airport to State of Washington on average per day?

As of July 2026, 27 flights take off from London Heathrow Airport and land in State of Washington each day. The most common flight departure time for this route is 09:00, with 52% of daily flights taking off in the afternoon.

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Find the cheapest flights from London Heathrow Airport to Washington

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

09:50 - 11:35

LHR

SEA

9h 45mdirect

20:20 - 13:45

SEA

LHR

9h 25mdirect

£449British Airways

Thu, 13 Aug - Fri, 21 Aug

13:00 - 20:43

LHR

SEA

15h 43m

1 stop

10:41 - 09:00

SEA

LHR

14h 19m

1 stop

£470United Airlines

Thu, 13 Aug - Fri, 21 Aug

21:25 - 11:45

LHR

SEA

22h 20m

1 stop

15:40 - 11:55

SEA

LHR

12h 15m

1 stop

£473Icelandair

Wed, 2 Sep - Wed, 16 Sep

09:50 - 11:35

LHR

SEA

9h 45mdirect

13:35 - 06:50

SEA

LHR

9h 15mdirect

£483British Airways

Tue, 15 Sep - Fri, 7 May

09:50 - 11:35

LHR

SEA

9h 45mdirect

20:20 - 13:45

SEA

LHR

9h 25mdirect

£484British Airways

Tue, 15 Sep - Sun, 9 May

21:25 - 11:45

LHR

SEA

22h 20m

1 stop

15:40 - 11:55

SEA

LHR

12h 15m

1 stop

£487Icelandair

Wed, 2 Sep - Wed, 16 Sep

08:50 - 17:10

LHR

SEA

16h 20m

1 stop

19:10 - 19:25

SEA

LHR

16h 15m

1 stop

£497Aer Lingus

Fri, 28 Aug - Sat, 5 Sep

17:00 - 23:44

LHR

BLI

14h 44m

1 stop

19:18 - 15:05

BLI

LHR

11h 47m

1 stop

£558Alaska Airlines

Thu, 1 Oct - Mon, 5 Oct

17:00 - 23:53

LHR

BLI

14h 53m

1 stop

19:18 - 15:05

BLI

LHR

11h 47m

1 stop

£565Alaska Airlines

Wed, 7 Oct - Sun, 11 Oct

08:55 - 11:55

LHR

GEG

35h 00m

1 stop

14:15 - 09:40

GEG

LHR

35h 25m

2 stops

£668Finnair

Tue, 8 Sep - Tue, 6 Oct

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British Airways flights from London Heathrow Airport to State of Washington

Our best British Airways deals on London Heathrow Airport to State of Washington flight tickets

British Airways

13 Aug

LHR09:50London Heathrow

9h 45m

SEA11:35Seattle/Tacoma Intl

21 Aug

SEA20:20Seattle/Tacoma Intl

9h 25m

LHR13:45London Heathrow

£449

British Airways

15 Sept

LHR09:50London Heathrow

9h 45m

SEA11:35Seattle/Tacoma Intl

7 May

SEA13:35Seattle/Tacoma Intl

9h 15m

LHR06:50London Heathrow

£483

British Airways

15 Sept

LHR09:50London Heathrow

9h 45m

SEA11:35Seattle/Tacoma Intl

9 May

SEA20:20Seattle/Tacoma Intl

9h 25m

LHR13:45London Heathrow

£484

United Airlines flights from London Heathrow Airport to State of Washington

Our best United Airlines deals on London Heathrow Airport to State of Washington flight tickets

United Airlines

13 Aug

LHR13:00London Heathrow

15h 43m

1 stop

SEA20:43Seattle/Tacoma Intl

21 Aug

SEA10:41Seattle/Tacoma Intl

14h 19m

1 stop

LHR09:00London Heathrow

£470

United Airlines

25 Jul

LHR08:00London Heathrow

19h 06m

1 stop

SEA19:06Seattle/Tacoma Intl

29 Jul

SEA07:30Seattle/Tacoma Intl

17h 50m

1 stop

LHR09:20London Heathrow

£495

United Airlines

21 Jul

LHR08:00London Heathrow

16h 09m

1 stop

SEA16:09Seattle/Tacoma Intl

19 Aug

SEA08:10Seattle/Tacoma Intl

18h 30m

1 stop

LHR10:40London Heathrow

£515

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 13/8

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Fri 21/8

20:20-13:45

Nonstop9h 25m

£449

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 13/8

13:00-20:43

1 stop15h 43m

Seattle/Tacoma Intl

Fri 21/8

10:41-09:00

1 stop14h 19m

£470

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 2/9

21:25-11:45

1 stop22h 20m

Seattle/Tacoma Intl

Wed 16/9

15:40-11:55

1 stop12h 15m

£473

Fastest return journey

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 15/9

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Fri 7/5

13:35-06:50

Nonstop9h 15m

£483

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 15/9

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Sun 9/5

20:20-13:45

Nonstop9h 25m

£484

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 2/9

21:25-11:45

1 stop22h 20m

Seattle/Tacoma Intl

Wed 16/9

15:40-11:55

1 stop12h 15m

£487

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 28/8

08:50-17:10

1 stop16h 20m

Seattle/Tacoma Intl

Sat 5/9

19:10-19:25

1 stop16h 15m

£497

LondonBellingham

LHR - BLI

LHRBLI

London Heathrow

Thu 1/10

17:00-23:44

1 stop14h 44m

Bellingham

Mon 5/10

19:18-15:05

1 stop11h 47m

£558

LondonBellingham

LHR - BLI

LHRBLI

London Heathrow

Wed 7/10

17:00-23:53

1 stop14h 53m

Bellingham

Sun 11/10

19:18-15:05

1 stop11h 47m

£565

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 8/9

08:55-11:55

1 stop35h 00m

Spokane

Tue 6/10

14:15-09:40

2 stops35h 25m

£668

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport 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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £321.

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

The cheapest day to depart from London Heathrow Airport to State of Washington is on a Thursday. Travellers who choose to depart for State of Washington on a Thursday will often find tickets for as low as £594. 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 £677.

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

Flying to State of Washington from London Heathrow Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as £601 when looking at flights departing at midday. In contrast, the most expensive time of day to depart to State of Washington is in the morning when prices are around £633.

What is the cheapest London Heathrow to Washington flight route?

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

How far in advance should I book a flight from London Heathrow Airport to Washington?

You are more likely to see cheaper flights to State of Washington from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around £587 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 Heathrow Airport for as low as £532 on momondo.

What cabin class options are available on London Heathrow Airport to State of Washington flights?

There are 4 cabin classes available to choose from on London Heathrow Airport to State of 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 Heathrow Airport to State of Washington flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to State of Washington.

Cheap London Heathrow Airport to State of Washington flight deals and tips

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

Best price found	£418
Fastest flight time	9h 45m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from London Heathrow Airport in the past 72 hours is £418. The best return flight deal from London Heathrow Airport to State of Washington found on momondo in the last 72 hours is £499.

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

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

There are 96 airports in State of Washington. From London Heathrow Airport there are direct flights to Portland (PDX), Seattle/Tacoma Intl (SEA).

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Frequently asked questions about flying from London Heathrow Airport to Washington

When did momondo last update prices for flights from London Heathrow Airport to Washington?
Prices for flights from London Heathrow Airport to Washington refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Washington?
The number of operators available for flights from London Heathrow Airport to Washington is 14 as of July 2026.
How old do you have to be to fly from London Heathrow Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to State of Washington?
Based on momondo bookings for flights between London Heathrow Airport and State of Washington, the leading plane model is Boeing 787-9 Dreamliner, making up 21.47% of the total bookings. Other popular models include Airbus A330-900neo with 21.31%, Boeing 787-10 Dreamliner with 19.23%, and Boeing 777-300ER with 15.98%.

Best airlines flying from London Heathrow Airport to State of Washington

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

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom £334	Free Cancellation	Rating 6.8 8,132 reviews	Search Lufthansa flights
Icelandair	PriceFrom £341	Free Cancellation	Rating 7.0 704 reviews	Search Icelandair flights
Aer Lingus	PriceFrom £391	Free Cancellation	Rating 7.3 1,655 reviews	Search Aer Lingus flights
Virgin Atlantic	PriceFrom £424	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom £430	Free Cancellation	Rating 7.4 9,975 reviews	Search United Airlines flights
KLM	PriceFrom £437	Free Cancellation	Rating 7.8 1,537 reviews	Search KLM flights
Delta	PriceFrom £441	Free Cancellation	Rating 7.8 8,458 reviews	Search Delta flights
Air France	PriceFrom £450	Free Cancellation	Rating 7.5 1,625 reviews	Search Air France flights
British Airways	PriceFrom £457	Free Cancellation	Rating 6.7 8,107 reviews	Search British Airways flights
Finnair	PriceFrom £474	Free Cancellation	Rating 7.6 1,418 reviews	Search Finnair flights

Why use momondo?

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

It is quick and easy to find London to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.

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

Yes. momondo allows you to filter the results for London to Washington flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of London to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from London Heathrow Airport to Washington from £308

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British Airways flights from London Heathrow Airport to State of Washington

Our best British Airways deals on London Heathrow Airport to State of Washington flight tickets

United Airlines flights from London Heathrow Airport to State of Washington

Our best United Airlines deals on London Heathrow Airport to State of Washington flight tickets

momondo Fare Finder

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

See travel insights to Washington from

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

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

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 Heathrow to Washington flight route?

How far in advance should I book a flight from London Heathrow Airport to Washington?

What cabin class options are available on London Heathrow Airport to State of Washington flights?

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

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

Which airlines fly to State of Washington?

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

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

Cheap London Heathrow Airport to State of Washington flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in State of Washington

Frequently asked questions about flying from London Heathrow Airport to Washington

Best airlines flying from London Heathrow Airport to State of Washington

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

Why use momondo?

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

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