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 41% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 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?

As of July 2026, 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.

$413 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?

The number of flights available between London Heathrow Airport and State of Washington is 195 per week as of July 2026. The most frequent departure day is Tue, with 15% of weekly flights leaving 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 9:00AM, with 52% of daily flights taking off in the afternoon.

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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

Enter your travel dates to find the best prices.

9:50 am - 11:35 am

LHR

SEA

9h 45mnonstop

8:20 pm - 1:45 pm

SEA

LHR

9h 25mnonstop

$603British Airways

Thu, Aug 13 - Fri, Aug 21

1:00 pm - 8:43 pm

LHR

SEA

15h 43m

1 stop

10:41 am - 9:00 am

SEA

LHR

14h 19m

1 stop

$630United Airlines

Thu, Aug 13 - Fri, Aug 21

9:25 pm - 11:45 am

LHR

SEA

22h 20m

1 stop

3:40 pm - 11:55 am

SEA

LHR

12h 15m

1 stop

$635Icelandair

Wed, Sep 2 - Wed, Sep 16

9:25 pm - 11:45 am

LHR

SEA

22h 20m

1 stop

3:40 pm - 11:55 am

SEA

LHR

12h 15m

1 stop

$654Icelandair

Wed, Sep 2 - Wed, Sep 16

6:30 am - 12:20 pm

LHR

SEA

13h 50m

1 stop

8:00 am - 8:05 am

SEA

LHR

16h 05m

2 stops

$655Multiple Airlines

Mon, Oct 5 - Wed, Oct 14

6:30 am - 11:55 am

LHR

SEA

13h 25m

1 stop

8:00 am - 8:05 am

SEA

LHR

16h 05m

2 stops

$657Multiple Airlines

Mon, Sep 7 - Wed, Oct 7

5:00 pm - 11:44 pm

LHR

BLI

14h 44m

1 stop

7:18 pm - 3:05 pm

BLI

LHR

11h 47m

1 stop

$749Alaska Airlines

Thu, Oct 1 - Mon, Oct 5

5:00 pm - 11:53 pm

LHR

BLI

14h 53m

1 stop

7:18 pm - 3:05 pm

BLI

LHR

11h 47m

1 stop

$758Alaska Airlines

Wed, Oct 7 - Sun, Oct 11

6:40 am - 5:09 pm

LHR

GEG

18h 29m

2 stops

1:00 pm - 5:40 pm

GEG

LHR

20h 40m

2 stops

$777Scandinavian Airlines

Tue, Sep 8 - Tue, Oct 6

6:40 am - 5:09 pm

LHR

GEG

18h 29m

2 stops

11:18 am - 5:40 pm

GEG

LHR

22h 22m

2 stops

$778Scandinavian Airlines

Tue, Sep 8 - Tue, Oct 6

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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

Aug 13

LHR9:50 amLondon Heathrow

9h 45m

SEA11:35 amSeattle/Tacoma Intl

Aug 21

SEA8:20 pmSeattle/Tacoma Intl

9h 25m

LHR1:45 pmLondon Heathrow

$603

British Airways

Sep 15

LHR9:50 amLondon Heathrow

9h 45m

SEA11:35 amSeattle/Tacoma Intl

May 7

SEA1:35 pmSeattle/Tacoma Intl

9h 15m

LHR6:50 amLondon Heathrow

$648

British Airways

Sep 15

LHR9:50 amLondon Heathrow

9h 45m

SEA11:35 amSeattle/Tacoma Intl

May 9

SEA8:20 pmSeattle/Tacoma Intl

9h 25m

LHR1:45 pmLondon Heathrow

$650

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

Aug 13

LHR1:00 pmLondon Heathrow

15h 43m

1 stop

SEA8:43 pmSeattle/Tacoma Intl

Aug 21

SEA10:41 amSeattle/Tacoma Intl

14h 19m

1 stop

LHR9:00 amLondon Heathrow

$630

United Airlines

Jul 25

LHR8:00 amLondon Heathrow

19h 06m

1 stop

SEA7:06 pmSeattle/Tacoma Intl

Jul 29

SEA7:30 amSeattle/Tacoma Intl

17h 50m

1 stop

LHR9:20 amLondon Heathrow

$664

United Airlines

Jul 21

LHR8:00 amLondon Heathrow

16h 09m

1 stop

SEA4:09 pmSeattle/Tacoma Intl

Aug 19

SEA8:10 amSeattle/Tacoma Intl

18h 30m

1 stop

LHR10:40 amLondon Heathrow

$691

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

Cheapest round-trip

Quickest round-trip

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 8/13

9:50 am-11:35 am

Nonstop9h 45m

Seattle/Tacoma Intl

Fri 8/21

8:20 pm-1:45 pm

Nonstop9h 25m

$603

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 8/13

1:00 pm-8:43 pm

1 stop15h 43m

Seattle/Tacoma Intl

Fri 8/21

10:41 am-9:00 am

1 stop14h 19m

$630

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 9/2

9:25 pm-11:45 am

1 stop22h 20m

Seattle/Tacoma Intl

Wed 9/16

3:40 pm-11:55 am

1 stop12h 15m

$635

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 9/2

9:25 pm-11:45 am

1 stop22h 20m

Seattle/Tacoma Intl

Wed 9/16

3:40 pm-11:55 am

1 stop12h 15m

$654

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 10/5

6:30 am-12:20 pm

1 stop13h 50m

Seattle/Tacoma Intl

Wed 10/14

8:00 am-8:05 am

2 stops16h 05m

$655

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 9/7

6:30 am-11:55 am

1 stop13h 25m

Seattle/Tacoma Intl

Wed 10/7

8:00 am-8:05 am

2 stops16h 05m

$657

LondonBellingham

LHR - BLI

LHRBLI

London Heathrow

Thu 10/1

5:00 pm-11:44 pm

1 stop14h 44m

Bellingham

Mon 10/5

7:18 pm-3:05 pm

1 stop11h 47m

$749

LondonBellingham

LHR - BLI

LHRBLI

London Heathrow

Wed 10/7

5:00 pm-11:53 pm

1 stop14h 53m

Bellingham

Sun 10/11

7:18 pm-3:05 pm

1 stop11h 47m

$758

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 9/8

6:40 am-5:09 pm

2 stops18h 29m

Spokane

Tue 10/6

1:00 pm-5:40 pm

2 stops20h 40m

$777

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 9/8

6:40 am-5:09 pm

2 stops18h 29m

Spokane

Tue 10/6

11:18 am-5:40 pm

2 stops22h 22m

$778

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 $403. 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 $431.

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 Monday. Travelers who choose to depart for State of Washington on a Monday will often find tickets for as low as $848. 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 $969.

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 $841. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $886 on average. Flights to State of Washington from London Heathrow Airport in the afternoon 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 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 $788 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 $714 on momondo.

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

There are 3 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.

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	$637
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 $637. The best round-trip flight deal from London Heathrow Airport to State of Washington found on momondo in the last 72 hours is $687.

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).

Search flight deals

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?
As of July 2026, 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 21.71% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 20.96%, Boeing 787-10 Dreamliner at 19.18%, and Boeing 777-300ER at 15.77%.

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 $403	Free Cancellation	Rating 7.0 702 reviews	Search Icelandair flights
KLM	PriceFrom $485	Free Cancellation	Rating 7.8 1,534 reviews	Search KLM flights
Delta	PriceFrom $536	Free Cancellation	Rating 7.8 8,453 reviews	Search Delta flights
American Airlines	PriceFrom $618	Free Cancellation	Rating 7.1 11,796 reviews	Search American Airlines flights
British Airways	PriceFrom $661	Free Cancellation	Rating 6.7 8,106 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom $670	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
Alaska Airlines	PriceFrom $759	Free Cancellation	Rating 7.9 12,644 reviews	Search Alaska Airlines 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.

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Cheap flights from London Heathrow Airport to Washington from $413

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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

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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?

What is the cheapest airline that flies 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?

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, 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.

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