What airlines fly to State of Washington?

British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to State of Washington from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 6 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?

WestJet is the most popular carrier operating from London Heathrow to Washington

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

As of August 2025, there are 7 operators available to choose from for flights from London Heathrow Airport to Washington.

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 required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$344 Cheap Flights from London Heathrow Airport to State of Washington in 2025

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

As of August 2025, 25 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 4:00PM, with 72% of daily flights taking off in the afternoon.

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

The number of flights available between London Heathrow Airport and State of Washington is 181 per week as of August 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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Find the cheapest flights from London Heathrow Airport to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:50 am - 5:50 pmLHR-SEA

17h 00m1 stop

7:35 pm - 3:55 pmSEA-LHR

12h 20m1 stop

$533Aer Lingus

Find Deal

Tue, Sep 9 - Tue, Sep 16

8:35 pm - 5:00 pmLHR-SEA

28h 25m1 stop

2:35 pm - 7:30 pmSEA-LHR

20h 55m1 stop

$550Icelandair

Find Deal

Thu, Nov 6 - Tue, Nov 18

8:50 am - 5:50 pmLHR-SEA

17h 00m1 stop

7:35 pm - 6:55 pmSEA-LHR

15h 20m1 stop

$551Aer Lingus

Find Deal

Tue, Sep 9 - Wed, Sep 24

6:05 pm - 8:28 pmLHR-PDX

34h 23m2 stops

5:16 am - 12:50 pmPDX-LHR

23h 34m1 stop

$711American Airlines

Find Deal

Tue, Sep 2 - Wed, Sep 10

1:25 pm - 9:11 pmLHR-GEG

15h 46m1 stop

3:37 pm - 2:15 pmGEG-LHR

14h 38m1 stop

$718Virgin Atlantic

Find Deal

Wed, Oct 1 - Wed, Oct 8

3:40 pm - 5:35 pmLHR-PDX

9h 55mnonstop

1:09 pm - 10:30 amPDX-LHR

13h 21m1 stop

$722British Airways

Find Deal

Tue, Sep 9 - Mon, Sep 15

3:40 pm - 5:35 pmLHR-PDX

9h 55mnonstop

11:18 am - 9:05 amPDX-LHR

13h 47m1 stop

$723British Airways

Find Deal

Tue, Sep 2 - Tue, Sep 16

6:30 am - 11:20 amLHR-PDX

12h 50m1 stop

11:50 am - 8:55 amPDX-LHR

13h 05m1 stop

$733Virgin Atlantic

Find Deal

Mon, Sep 1 - Wed, Sep 10

3:40 pm - 5:35 pmLHR-PDX

9h 55mnonstop

7:25 pm - 1:00 pmPDX-LHR

9h 35mnonstop

$754American Airlines

Find Deal

Tue, Sep 2 - Thu, Sep 11

6:30 am - 4:32 pmLHR-PSC

18h 02m2 stops

6:00 am - 6:55 amPSC-LHR

16h 55m2 stops

$1,580Delta

Find Deal

Mon, Nov 3 - Fri, Nov 7

Aer Lingus flights from London Heathrow Airport to State of Washington

Our best Aer Lingus deals on London Heathrow Airport to State of Washington flight tickets

Aer Lingus

Sep 9

LHR8:50 amLondon Heathrow

17h 00m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

Sep 16

SEA7:35 pmSeattle/Tacoma Intl

12h 20m

1 stop

LHR3:55 pmLondon Heathrow

$533

Find similar

Aer Lingus

Sep 9

LHR8:50 amLondon Heathrow

17h 00m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

Sep 24

SEA7:35 pmSeattle/Tacoma Intl

15h 20m

1 stop

LHR6:55 pmLondon Heathrow

$551

Find similar

Aer Lingus

Sep 15

LHR12:00 pmLondon Heathrow

13h 50m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

Sep 18

SEA7:35 pmSeattle/Tacoma Intl

16h 45m

1 stop

LHR8:20 pmLondon Heathrow

$552

Find similar

Icelandair flights from London Heathrow Airport to State of Washington

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

Icelandair

Nov 6

LHR8:35 pmLondon Heathrow

28h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Nov 18

SEA2:35 pmSeattle/Tacoma Intl

20h 55m

1 stop

LHR7:30 pmLondon Heathrow

$550

Find similar

Icelandair

Sep 24

LHR1:05 pmLondon Heathrow

15h 35m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Oct 7

SEA3:45 pmSeattle/Tacoma Intl

20h 35m

1 stop

LHR8:20 pmLondon Heathrow

$554

Find similar

Icelandair

Sep 17

LHR1:05 pmLondon Heathrow

15h 35m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Sep 29

SEA7:00 pmSeattle/Tacoma Intl

32h 55m

1 stop

LHR11:55 amLondon Heathrow

$556

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 9/9

8:50 am-5:50 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 9/16

7:35 pm-3:55 pm

1 stop12h 20m

$533

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 11/6

8:35 pm-5:00 pm

1 stop28h 25m

Seattle/Tacoma Intl

Tue 11/18

2:35 pm-7:30 pm

1 stop20h 55m

$550

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 9/9

8:50 am-5:50 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 9/24

7:35 pm-6:55 pm

1 stop15h 20m

$551

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/2

6:05 pm-8:28 pm

2 stops34h 23m

Portland

Wed 9/10

5:16 am-12:50 pm

1 stop23h 34m

$711

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 10/1

1:25 pm-9:11 pm

1 stop15h 46m

Spokane

Wed 10/8

3:37 pm-2:15 pm

1 stop14h 38m

$718

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/9

3:40 pm-5:35 pm

Nonstop9h 55m

Portland

Mon 9/15

1:09 pm-10:30 am

1 stop13h 21m

$722

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/2

3:40 pm-5:35 pm

Nonstop9h 55m

Portland

Tue 9/16

11:18 am-9:05 am

1 stop13h 47m

$723

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 9/1

6:30 am-11:20 am

1 stop12h 50m

Portland

Wed 9/10

11:50 am-8:55 am

1 stop13h 05m

$733

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/2

3:40 pm-5:35 pm

Nonstop9h 55m

Portland

Thu 9/11

7:25 pm-1:00 pm

Nonstop9h 35m

$754

LondonPasco

LHR - PSC

LHRPSC

London Heathrow

Mon 11/3

6:30 am-4:32 pm

2 stops18h 02m

Pasco Tri Cities

Fri 11/7

6:00 am-6:55 am

2 stops16h 55m

$1,580

Flights are sorted by cheapest round-trip 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?

The month of February is, on average, the cheapest month to fly to State of Washington from London Heathrow Airport, with most prices found around $648. If you aren’t able to travel to State of Washington during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $689.

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 Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $791. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to State of Washington for around $1,018.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $851. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $943 on average. Flights to State of Washington from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 to State of 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 $773 when searching weeks out. 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 $705 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow 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 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	$344
Fastest flight time	9h 55m
Direct flights	Every day
Airports in State of Washington	5 airports

The best one-way flight to State of Washington from London Heathrow Airport in the past 72 hours is $344. The best round-trip flight deal from London Heathrow Airport to State of Washington found on momondo in the last 72 hours is $533.

The fastest flight from London Heathrow Airport to State of Washington takes 9h 55m

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

There are 5 airports near State of Washington: Pasco Tri Cities (PSC), Portland (PDX), Spokane (GEG), Seattle/Tacoma Intl (SEA), Bellingham (BLI)

Search flight deals

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?
As of August 2025, there are 7 operators available to choose from for flights from London Heathrow Airport to Washington.
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 required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to State of Washington is Airbus A330-900neo, representing 25.95% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 20.63%, Boeing 787-9 Dreamliner at 15.51%, and Boeing 777-300ER at 13.97%.

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
Icelandair	PriceFrom $449	Free Cancellation	Rating 7.0 527 reviews	Search Icelandair flights
British Airways	PriceFrom $560	Free Cancellation	Rating 6.6 7,277 reviews	Search British Airways flights
Iberia	PriceFrom $575	Free Cancellation	Rating 7.0 2,884 reviews	Search Iberia flights
Virgin Atlantic	PriceFrom $594	Free Cancellation	Rating 7.4 657 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $620	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $621	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Washington for you.

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 provides multiple filters to help you find the best flight to Washington from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from London to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.

An easier way to manage your State of Washington trip

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Cheap flights from London Heathrow Airport to Washington from $344

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Filter for what you want

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Find the cheapest flights from London Heathrow Airport to Washington

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Aer Lingus flights from London Heathrow Airport to State of Washington

Our best Aer Lingus deals on London Heathrow Airport to State of Washington flight tickets

Icelandair flights from London Heathrow Airport to State of Washington

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

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

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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

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?

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 to State of Washington?

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

There are 4 cabin classes available to choose from on London Heathrow 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 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.

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

WestJet is the most popular carrier operating from London Heathrow to Washington

What airlines fly to State of Washington?

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

As of August 2025, 25 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 4:00PM, with 72% of daily flights taking off in the afternoon.

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

The number of flights available between London Heathrow Airport and State of Washington is 181 per week as of August 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

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

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

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

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

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

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, organize 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