What are the cheapest airlines to fly from United Kingdom to Seattle one-way?

For one-way options, check prices for WestJet. According to our data, you can fly for as low as $430. Users have also found prices from $532 and $602 on Aer Lingus and Icelandair, respectively.

What are the most popular routes from United Kingdom to Seattle?

Most travelers choose London Heathrow - Seattle/Tacoma Intl, London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl when deciding on the best route from United Kingdom to Seattle.

What are the cheapest flights from United Kingdom to Seattle?

While on average a flight from United Kingdom to Seattle is generally $1,585, our data shows the cheapest flight currently is $661. When looking at the most popular route, (London Heathrow - Seattle/Tacoma Intl), you can expect to pay $441 for that flight.

What are the most reliable airlines from United Kingdom to Seattle?

The top 3 most reliable airlines when flying from United Kingdom to Seattle are Singapore Airlines (94%), Aeromexico (92%) and KLM (91%).

What are the most popular airlines that fly from United Kingdom to Seattle?

American Airlines, British Airways and Delta are the most popular airlines when flying from United Kingdom to Seattle.

How far in advance should I book a flight from United Kingdom to Seattle?

To save on the cost of your flight from United Kingdom to Seattle, book at least 44 days before your planned departure. Booking around this time can save you about 40% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $784 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,058.

What is the cheapest month to fly from United Kingdom to Seattle?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to Seattle. Flights to Seattle from United Kingdom in January are about $767 on average during January, but can be found for as low as $437.

What airport do you fly into for flights to Seattle from United Kingdom?

For a flight from United Kingdom to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

Can I find deals for flights from United Kingdom to Seattle that include hotel bookings?

Yes. In addition to deals on United Kingdom to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from United Kingdom to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Seattle.

Can I find deals for business class flights from United Kingdom to Seattle?

Yes. Cheapflights offers flight deals from United Kingdom to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$602+ Flights from the United Kingdom to Seattle

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Cheap flight deals from United Kingdom to Seattle

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$538 (Mytrip)
One-way from	$316 (Norse)
Popular in	August
Cheapest in	January
Average price	$709
Good round-trip deal	$726 or less
Good one-way deal	$760 or less

Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.

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Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.

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From United Kingdom to Seattle/Tacoma Intl

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One-way flight from United Kingdom to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($149 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from United Kingdom to Seattle/Tacoma Intl.

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Price to beat on a one-way flight from United Kingdom to Seattle/Tacoma Intl.

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Find flight deals from United Kingdom to Seattle

Cheapest flights from United Kingdom to Seattle
Explore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Thu 5/2212:35 pmLTN - SEA

2 stops33h 15mMultiple Airlines

Mon 5/264:00 pmSEA - LTN

2 stops21h 25mMultiple Airlines

Deal found 4/15

$538

Thu 5/19:00 amEDI - SEA

2 stops21h 42mUnited Airlines

Thu 5/811:59 pmSEA - EDI

2 stops24h 06mUnited Airlines

Deal found 4/17

$539

Thu 5/222:50 pmSTN - SEA

2 stops31h 00mMultiple Airlines

Mon 5/264:00 pmSEA - STN

2 stops22h 10mMultiple Airlines

Deal found 4/15

$544

Mon 9/157:00 amEDI - SEA

1 stop12h 35mBritish Airways

Mon 9/228:20 pmSEA - EDI

1 stop12h 20mBritish Airways

Deal found 4/17

$599

Sat 5/36:30 amLHR - SEA

1 stop13h 55mMultiple Airlines

Sat 5/107:15 pmSEA - LHR

2 stops30h 45mMultiple Airlines

Deal found 4/16

$603

Sun 8/319:25 pmLHR - SEA

1 stop22h 00mIcelandair

Thu 12/112:35 pmSEA - LHR

1 stop12h 15mIcelandair

Deal found 4/16

$604

Wed 5/146:15 amLHR - SEA

1 stop18h 44mBritish Airways

Wed 5/211:30 pmSEA - LHR

Nonstop9h 20mBritish Airways

Deal found 4/17

$605

Tue 5/63:40 pmLGW - SEA

1 stop13h 00mIcelandair

Fri 10/313:35 pmSEA - LGW

1 stop12h 20mIcelandair

Deal found 4/17

$606

Wed 4/305:00 pmLCY - SEA

2 stops37h 42mLufthansa

Wed 5/72:15 pmSEA - LCY

1 stop18h 10mLufthansa

Deal found 4/17

$606

Tue 5/66:30 amLHR - SEA

1 stop13h 55mLufthansa

Sun 5/118:10 amSEA - LHR

1 stop14h 45mLufthansa

Deal found 4/16

$606

Mon 9/14:25 pmLHR - SEA

1 stop16h 19mFinnair

Sun 9/2111:55 pmSEA - LHR

2 stops22h 20mFinnair

Deal found 4/17

$607

Wed 5/710:55 amLGW - SEA

2 stops21h 15mMultiple Airlines

Wed 10/227:00 pmSEA - LGW

1 stop11h 40mMultiple Airlines

Deal found 4/17

$608

Best flights from United Kingdom to Seattle
Discover carefully curated flight deals from United Kingdom to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Thu 5/2212:35 pmLTN - SEA

2 stops33h 15mMultiple Airlines

Mon 5/264:00 pmSEA - LTN

2 stops21h 25mMultiple Airlines

Deal found 4/15

$538

Thu 5/19:00 amEDI - SEA

2 stops21h 42mUnited Airlines

Thu 5/811:59 pmSEA - EDI

2 stops24h 06mUnited Airlines

Deal found 4/17

$539

Mon 9/157:00 amEDI - SEA

1 stop12h 35mBritish Airways

Mon 9/228:20 pmSEA - EDI

1 stop12h 20mBritish Airways

Deal found 4/17

$599

Sun 8/319:25 pmLHR - SEA

1 stop22h 00mIcelandair

Thu 12/112:35 pmSEA - LHR

1 stop12h 15mIcelandair

Deal found 4/16

$604

Wed 4/305:00 pmLCY - SEA

2 stops37h 42mLufthansa

Wed 5/72:15 pmSEA - LCY

1 stop18h 10mLufthansa

Deal found 4/17

$606

Mon 9/14:25 pmLHR - SEA

1 stop16h 19mFinnair

Sun 9/2111:55 pmSEA - LHR

2 stops22h 20mFinnair

Deal found 4/17

$607

Tue 5/68:45 amLHR - SEA

2 stops18h 52mAir Canada

Tue 5/137:20 amSEA - LHR

1 stop15h 10mAir Canada

Deal found 4/16

$609

Tue 4/295:10 pmLHR - SEA

2 stops37h 33mSWISS

Tue 5/62:40 pmSEA - LHR

2 stops19h 10mSWISS

Deal found 4/15

$617

Wed 5/145:25 pmLHR - SEA

Nonstop10h 15mVirgin Atlantic

Thu 5/228:20 pmSEA - LHR

Nonstop9h 55mVirgin Atlantic

Deal found 4/16

$619

Mon 5/56:30 amLHR - SEA

1 stop17h 27mKLM

Tue 5/208:20 pmSEA - LHR

Nonstop9h 55mKLM

Deal found 4/16

$622

Thu 6/57:30 pmLHR - SEA

1 stop26h 20mScandinavian Airlines

Fri 6/134:00 pmSEA - LHR

1 stop33h 20mScandinavian Airlines

Deal found 4/17

$629

Mon 4/2812:20 pmLGW - SEA

2 stops20h 31mAmerican Airlines

Tue 5/135:22 amSEA - LGW

2 stops18h 48mAmerican Airlines

Deal found 4/16

$648

Last-minute flights from United Kingdom to Seattle
Discover last-minute flight deals from United Kingdom to Seattle. Data last updated April 17, 2025 and is based on user searches.

Tue 4/229:25 pmLHR - SEA

1 stop31h 15mIcelandair

Tue 4/297:00 pmSEA - LHR

1 stop17h 20mIcelandair

Deal found 4/16

$607

Wed 4/233:40 pmLGW - SEA

1 stop13h 00mIcelandair

Thu 5/83:45 pmSEA - LGW

1 stop14h 55mIcelandair

Deal found 4/17

$609

Wed 4/236:50 amLHR - SEA

2 stops23h 53mUnited Airlines

Sun 4/2711:45 pmSEA - LHR

1 stop22h 35mUnited Airlines

Deal found 4/16

$631

Thu 4/242:10 pmLHR - SEA

1 stop12h 18mLufthansa

Wed 4/307:00 amSEA - LHR

1 stop15h 20mLufthansa

Deal found 4/16

$622

Thu 4/242:10 pmLHR - SEA

1 stop27h 43mAir Canada

Sat 5/107:20 amSEA - LHR

1 stop15h 10mAir Canada

Deal found 4/15

$627

Thu 4/245:20 pmLHR - SEA

2 stops27h 23mFinnair

Wed 4/301:35 pmSEA - LHR

1 stop14h 40mFinnair

Deal found 4/16

$648

Thu 4/248:20 amLHR - SEA

1 stop16h 39mBritish Airways

Wed 4/308:20 pmSEA - LHR

Nonstop9h 20mBritish Airways

Deal found 4/16

$652

Thu 4/248:30 amLHR - SEA

2 stops18h 31mMultiple Airlines

Sat 5/105:30 amSEA - LHR

2 stops17h 00mMultiple Airlines

Deal found 4/16

$660

Thu 4/245:50 amEDI - SEA

1 stop13h 45mBritish Airways

Thu 5/11:30 pmSEA - EDI

1 stop19h 10mBritish Airways

Deal found 4/17

$669

Thu 4/245:25 pmLHR - SEA

Nonstop10h 20mAir France

Wed 4/308:20 pmSEA - LHR

Nonstop9h 55mAir France

Deal found 4/16

$671

Fri 4/252:00 pmLGW - SEA

2 stops42h 44mMultiple Airlines

Sun 4/277:00 pmSEA - LGW

1 stop11h 40mMultiple Airlines

Deal found 4/17

$688

Sat 4/265:25 pmLHR - SEA

Nonstop10h 20mVirgin Atlantic

Thu 5/18:20 pmSEA - LHR

Nonstop9h 55mVirgin Atlantic

Deal found 4/17

$663

One-way flights from United Kingdom to Seattle
Search for one-way flight options from United Kingdom to Seattle. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Thu 6/1210:45 amLGW - SEA

1 stop20h 14mMultiple Airlines

Deal found 4/16

$316

Tue 5/2712:35 pmEDI - SEA

2 stops55h 11mMultiple Airlines

Deal found 4/17

$348

Thu 5/225:55 amBHX - SEA

3 stops36h 50mMultiple Airlines

Deal found 4/16

$366

Thu 6/124:50 pmSTN - SEA

2 stops35h 38mMultiple Airlines

Deal found 4/16

$388

Fri 5/27:20 pmMAN - SEA

2 stops57h 22mMultiple Airlines

Deal found 4/17

$397

Thu 6/129:10 pmLTN - SEA

2 stops31h 18mMultiple Airlines

Deal found 4/16

$400

Wed 7/910:30 amEDI - SEA

2 stops17h 58mWestJet

Deal found 4/17

$430

Thu 6/128:45 amLCY - SEA

2 stops19h 43mMultiple Airlines

Deal found 4/16

$468

Thu 6/122:10 pmLHR - SEA

3 stops31h 59mWestJet

Deal found 4/16

$516

Tue 4/229:50 amLHR - SEA

1 stop15h 09mAer Lingus

Deal found 4/16

$532

Mon 7/146:15 amLHR - SEA

3 stops22h 13mMultiple Airlines

Deal found 4/16

$539

Thu 9/1810:45 amLGW - SEA

2 stops33h 48mWestJet

Deal found 4/16

$545

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 5/22

12:35 pm-1:50 pm

2 stops33h 15m

Seattle/Tacoma Intl

Mon 5/26

4:00 pm-9:25 pm

2 stops21h 25m

$538

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Thu 5/1

9:00 am-10:42 pm

2 stops21h 42m

Seattle/Tacoma Intl

Thu 5/8

11:59 pm-8:05 am

2 stops24h 06m

$539

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 5/22

2:50 pm-1:50 pm

2 stops31h 00m

Seattle/Tacoma Intl

Mon 5/26

4:00 pm-10:10 pm

2 stops22h 10m

$544

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Mon 9/15

7:00 am-11:35 am

1 stop12h 35m

Seattle/Tacoma Intl

Mon 9/22

8:20 pm-4:40 pm

1 stop12h 20m

$599

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 5/3

6:30 am-12:25 pm

1 stop13h 55m

Seattle/Tacoma Intl

Sat 5/10

7:15 pm-10:00 am

2 stops30h 45m

$603

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 8/31

9:25 pm-11:25 am

1 stop22h 00m

Seattle/Tacoma Intl

Thu 12/11

2:35 pm-10:50 am

1 stop12h 15m

$604

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 5/14

6:15 am-4:59 pm

1 stop18h 44m

Seattle/Tacoma Intl

Wed 5/21

1:30 pm-6:50 am

Nonstop9h 20m

$605

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 4/30

5:00 pm-10:42 pm

2 stops37h 42m

Seattle/Tacoma Intl

Wed 5/7

2:15 pm-4:25 pm

1 stop18h 10m

$606

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 5/6

3:40 pm-8:40 pm

1 stop13h 00m

Seattle/Tacoma Intl

Fri 10/31

3:35 pm-10:55 am

1 stop12h 20m

$606

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 5/6

6:30 am-12:25 pm

1 stop13h 55m

Seattle/Tacoma Intl

Sun 5/11

8:10 am-6:55 am

1 stop14h 45m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 results

...

Best time to book a flight from United Kingdom to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from United Kingdom with our price prediction graph.

Estimated round-trip 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 the United Kingdom to Seattle

What is the cheapest month to book a flight from United Kingdom to Seattle?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Seattle (average of $238). Flying from United Kingdom to Seattle in July is currently the most expensive (average of $411). 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 GB to SEA?

When flying from United Kingdom to Seattle, 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 United Kingdom to Seattle

The most flights from GB0 to SEA are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Delta, KLM and Finnair from United Kingdom to Seattle to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,917 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,329 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,580 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to Seattle from United Kingdom?
For a flight from United Kingdom to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.
What are the cheapest airlines to fly from United Kingdom to Seattle one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as $430. Users have also found prices from $532 and $602 on Aer Lingus and Icelandair, respectively.
What are the most popular routes from United Kingdom to Seattle?
Most travelers choose London Heathrow - Seattle/Tacoma Intl, London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl when deciding on the best route from United Kingdom to Seattle.
What are the most reliable airlines from United Kingdom to Seattle?
The top 3 most reliable airlines when flying from United Kingdom to Seattle are Singapore Airlines (94%), Aeromexico (92%) and KLM (91%).
What are the cheapest flights from United Kingdom to Seattle?
While on average a flight from United Kingdom to Seattle is generally $1,585, our data shows the cheapest flight currently is $661. When looking at the most popular route, (London Heathrow - Seattle/Tacoma Intl), you can expect to pay $441 for that flight.
Can I find deals for flights from United Kingdom to Seattle that include hotel bookings?
Yes. In addition to deals on United Kingdom to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Seattle.
Can I find deals for business class flights from United Kingdom to Seattle?
Yes. Cheapflights offers flight deals from United Kingdom to Seattle 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 United Kingdom to Seattle?
Currently, January is the cheapest month in which you can book a flight from United Kingdom to Seattle (average of $238). Flying from United Kingdom to Seattle in July is currently the most expensive (average of $411). 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

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Tukwila

Tacoma

Renton

Lakewood

Ocean Shores

Lacey

Leavenworth

Federal Way

Olympia

Shoreline

Cle Elum

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Aberdeen

Kent

Lynnwood

Shelton

Silverdale

Redmond

Issaquah

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Top 8 airlines flying from United Kingdom to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$402	Average$740	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$551	Average$987	FlexibilityNo cancel fee	On-time70%
Aer Lingus	Cheapest$620	Average$1,011	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$621	Average$818	FlexibilityNo cancel fee	On-time71%
Virgin Atlantic	Cheapest$635	Average$980	FlexibilityNo cancel fee	On-time72%
Iberia	Cheapest$673	Average$1,001	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$674	Average$844	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$675	Average$869	FlexibilityNo cancel fee	On-timeN/A

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$316+ Cheap flights from the United Kingdom to Seattle (SEA)

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from United Kingdom to Seattle

Keep the following information in mind while searching for United Kingdom to Seattle flight deals. Data was last updated April 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from United Kingdom to Seattle

Cheapest flights from United Kingdom to SeattleExplore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Explore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Seattle that are best for you.

Best time to book a flight from United Kingdom to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from United Kingdom with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Seattle

What is the cheapest month to book a flight from United Kingdom to Seattle?

What is the cheapest time of day to fly from GB to SEA?

Find hourly flight availability from United Kingdom to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Weekly flight availability from United Kingdom to Seattle

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Delta, KLM and Finnair from United Kingdom to Seattle to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from United Kingdom?

What are the cheapest airlines to fly from United Kingdom to Seattle one-way?

What are the most popular routes from United Kingdom to Seattle?

What are the most reliable airlines from United Kingdom to Seattle?

What are the cheapest flights from United Kingdom to Seattle?

Can I find deals for flights from United Kingdom to Seattle that include hotel bookings?

How can I find direct flights from United Kingdom to Seattle?

Can I find deals for business class flights from United Kingdom to Seattle?

What is the cheapest month to book a flight from United Kingdom to Seattle?

Traveling to a place near the United Kingdom?

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 United Kingdom to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from United Kingdom to Seattle

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Cheapest flights from United Kingdom to Seattle
Explore the most affordable flight options available from United Kingdom to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.