How long is the flight from Seattle to United Kingdom?

A quick flight from Seattle to United Kingdom can take about 9h 50m. Icelandair provides one of the quickest options available for as low as $508. Seattle and United Kingdom are separated by a distance of 4783 mi. This flight may include one or multiple stops.

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

The cheapest airlines for a one-way flight from Seattle to United Kingdom are WestJet ($275), Scandinavian Airlines ($318), and JetBlue ($333).

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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

While some choose either Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London City, Seattle/Tacoma Intl - London Heathrow is the most popular route from Seattle to United Kingdom.

What are the cheapest flights from Seattle to United Kingdom?

On average you can expect to pay $2,170 for a flight from Seattle to United Kingdom. The cheapest flight overall is $348 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at $471.

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

Consider Aeromexico (88%), KLM (87%) or Air France (87%) when booking your flight. These represent the most reliable airlines when flying from Seattle to United Kingdom.

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

The most popular airlines flying from Seattle to United Kingdom are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

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

To save up to 49% on this flight, we recommend booking at least 51 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to United Kingdom from $641 1-2 weeks out and tickets from $943 for flights departing within the next 72 hours.

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

Our data shows that October tends to be the cheapest month to fly to United Kingdom from Seattle. Users have commonly found prices around $758 for the month, but tickets can be as low as $515. Due to multiple factors, prepare for potentially higher prices in June.

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

Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to United Kingdom from Seattle.

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

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

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

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

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

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

$225+ Cheap Flights from Seattle to the United Kingdom

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Cheap flight deals from Seattle to United Kingdom

Round-trip from	$492 (oojo)
One-way from	$225 (Mytrip)
Popular in	June
Cheapest in	October
Average price	$696
Good round-trip deal	$644 or less
Good one-way deal	$430 or less

From Seattle/Tacoma Intl to United Kingdom

Search Deals

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

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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

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

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Find flight deals from Seattle to United Kingdom

Cheapest flights from Seattle to United Kingdom
Explore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Tue 10/77:00 pmSEA - GLA

1 stop10h 25mIcelandair

Wed 10/222:20 pmGLA - SEA

1 stop11h 30mIcelandair

Deal found 9/10

$492

Sat 10/43:45 pmSEA - MAN

1 stop11h 30mIcelandair

Tue 11/2511:55 amMAN - SEA

1 stop13h 05mIcelandair

Deal found 9/11

$500

Mon 9/227:00 pmSEA - LGW

1 stop11h 35mIcelandair

Sat 9/273:40 pmLGW - SEA

1 stop13h 00mIcelandair

Deal found 9/8

$506

Sun 9/217:50 amSEA - LHR

1 stop14h 55mVirgin Atlantic

Tue 10/711:30 amLHR - SEA

1 stop14h 10mVirgin Atlantic

Deal found 9/9

$506

Sat 9/2711:10 pmSEA - LHR

1 stop24h 30mUnited Airlines

Fri 10/106:55 amLHR - SEA

1 stop18h 04mUnited Airlines

Deal found 9/9

$507

Tue 10/213:45 pmSEA - LGW

1 stop14h 55mIcelandair

Sun 10/262:40 pmLGW - SEA

1 stop34h 20mIcelandair

Deal found 9/11

$508

Sun 9/213:15 pmSEA - LHR

1 stop14h 15mDelta

Tue 10/76:15 amLHR - SEA

1 stop19h 25mDelta

Deal found 9/11

$508

Wed 11/124:48 pmSEA - LHR

Nonstop9h 42mDelta

Wed 11/196:20 amLHR - SEA

1 stop15h 00mDelta

Deal found 9/11

$509

Wed 10/18:25 pmSEA - LHR

Nonstop9h 50mDelta

Fri 10/106:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/11

$510

Tue 9/307:00 pmSEA - LGW

1 stop11h 40mIcelandair

Thu 10/3011:55 amLGW - SEA

1 stop13h 05mIcelandair

Deal found 9/11

$511

Sun 10/57:50 amSEA - LHR

1 stop14h 55mDelta

Thu 10/166:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/8

$511

Sat 11/228:00 pmSEA - LHR

1 stop31h 50mUnited Airlines

Tue 12/211:10 amLHR - SEA

1 stop34h 10mUnited Airlines

Deal found 9/9

$512

Best flights from Seattle to United Kingdom
Discover carefully curated flight deals from Seattle to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 10/77:00 pmSEA - GLA

1 stop10h 25mIcelandair

Wed 10/222:20 pmGLA - SEA

1 stop11h 30mIcelandair

Deal found 9/10

$492

Sat 9/2711:10 pmSEA - LHR

1 stop24h 30mUnited Airlines

Fri 10/106:55 amLHR - SEA

1 stop18h 04mUnited Airlines

Deal found 9/9

$507

Mon 10/68:25 pmSEA - LHR

Nonstop9h 50mDelta

Wed 10/226:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/9

$508

Wed 10/2911:43 amSEA - LHR

1 stop14h 02mMultiple Airlines

Tue 11/116:20 amLHR - SEA

1 stop13h 05mMultiple Airlines

Deal found 9/10

$514

Wed 10/83:28 pmSEA - LCY

2 stops17h 47mSWISS

Tue 10/149:25 amLCY - SEA

2 stops17h 11mSWISS

Deal found 9/9

$548

Wed 10/81:30 pmSEA - MAN

1 stop13h 40mVirgin Atlantic

Wed 10/152:15 pmMAN - SEA

1 stop16h 07mVirgin Atlantic

Deal found 9/10

$563

Tue 10/72:00 pmSEA - LCY

1 stop18h 40mKLM

Tue 10/147:00 pmLCY - SEA

1 stop24h 50mKLM

Deal found 9/9

$567

Sun 10/197:35 pmSEA - MAN

1 stop12h 00mAer Lingus

Wed 10/229:25 amMAN - SEA

1 stop16h 25mAer Lingus

Deal found 9/9

$574

Wed 10/228:20 pmSEA - GLA

1 stop14h 20mBritish Airways

Mon 10/278:25 pmGLA - SEA

1 stop23h 05mBritish Airways

Deal found 9/10

$630

Tue 10/148:25 pmSEA - LHR

Nonstop9h 50mDelta

Thu 10/236:30 amLHR - SEA

1 stop13h 20mDelta

Deal found 9/9

$509

Tue 11/188:36 amSEA - LHR

2 stops17h 49mUnited Airlines

Wed 11/261:25 pmLHR - SEA

2 stops30h 05mUnited Airlines

Deal found 9/9

$509

Fri 1/232:35 pmSEA - GLA

1 stop11h 20mIcelandair

Sun 1/2512:35 pmGLA - SEA

1 stop12h 25mIcelandair

Deal found 9/9

$517

Last-minute flights from Seattle to United Kingdom
Discover last-minute flight deals from Seattle to United Kingdom. Data last updated September 11, 2025 and is based on user searches.

Sun 9/217:50 amSEA - LHR

1 stop14h 55mVirgin Atlantic

Tue 10/711:30 amLHR - SEA

1 stop14h 10mVirgin Atlantic

Deal found 9/9

$506

Sun 9/213:15 pmSEA - LHR

1 stop14h 15mDelta

Tue 10/76:15 amLHR - SEA

1 stop19h 25mDelta

Deal found 9/11

$508

Mon 9/227:00 pmSEA - LGW

1 stop11h 35mIcelandair

Sat 9/273:40 pmLGW - SEA

1 stop13h 00mIcelandair

Deal found 9/8

$506

Sat 9/2711:10 pmSEA - LHR

1 stop24h 30mUnited Airlines

Fri 10/106:55 amLHR - SEA

1 stop18h 04mUnited Airlines

Deal found 9/9

$507

Tue 9/307:00 pmSEA - LGW

1 stop11h 40mIcelandair

Thu 10/3011:55 amLGW - SEA

1 stop13h 05mIcelandair

Deal found 9/11

$511

Wed 10/18:25 pmSEA - LHR

Nonstop9h 50mDelta

Fri 10/106:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/11

$510

Wed 10/17:15 amSEA - LHR

1 stop18h 20mMultiple Airlines

Tue 10/145:50 pmLHR - SEA

1 stop31h 09mMultiple Airlines

Deal found 9/10

$512

Sat 10/43:45 pmSEA - MAN

1 stop11h 30mIcelandair

Tue 11/2511:55 amMAN - SEA

1 stop13h 05mIcelandair

Deal found 9/11

$500

Sun 10/57:50 amSEA - LHR

1 stop14h 55mDelta

Thu 10/166:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/8

$511

Mon 10/68:25 pmSEA - LHR

Nonstop9h 50mDelta

Wed 10/226:15 amLHR - SEA

1 stop13h 00mDelta

Deal found 9/10

$509

Tue 10/77:00 pmSEA - GLA

1 stop10h 25mIcelandair

Wed 10/222:20 pmGLA - SEA

1 stop11h 30mIcelandair

Deal found 9/10

$492

Tue 10/213:45 pmSEA - LGW

1 stop14h 55mIcelandair

Sun 10/262:40 pmLGW - SEA

1 stop34h 20mIcelandair

Deal found 9/11

$508

One-way flights from Seattle to United Kingdom
Search for one-way flight options from Seattle to United Kingdom. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Wed 10/810:00 amSEA - EDI

2 stops16h 05mMultiple Airlines

Deal found 9/10

$225

Fri 10/39:55 amSEA - LGW

1 stop36h 25mMultiple Airlines

Deal found 9/8

$261

Sun 10/55:30 amSEA - STN

3 stops30h 00mMultiple Airlines

Deal found 9/8

$262

Sun 10/128:43 pmSEA - LHR

2 stops31h 22mMultiple Airlines

Deal found 9/10

$262

Wed 10/227:05 amSEA - LGW

2 stops19h 50mMultiple Airlines

Deal found 9/9

$263

Sat 3/711:55 amSEA - LHR

2 stops16h 55mWestJet

Deal found 9/11

$263

Tue 11/113:10 pmSEA - LHR

1 stop13h 40mWestJet

Deal found 9/10

$264

Sat 1/2410:50 pmSEA - LGW

1 stop23h 10mMultiple Airlines

Deal found 9/11

$265

Thu 11/203:10 pmSEA - LHR

1 stop13h 40mWestJet

Deal found 9/10

$265

Mon 10/202:05 pmSEA - LHR

2 stops16h 50mMultiple Airlines

Deal found 9/9

$266

Tue 10/217:05 amSEA - LHR

2 stops23h 50mMultiple Airlines

Deal found 9/9

$268

Thu 10/231:50 pmSEA - STN

2 stops17h 55mMultiple Airlines

Deal found 9/9

$270

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 10/7

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Wed 10/22

2:20 pm-5:50 pm

1 stop11h 30m

$492

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 9/27

11:10 pm-7:40 am

1 stop24h 30m

London Heathrow

Fri 10/10

6:55 am-4:59 pm

1 stop18h 04m

$507

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 10/6

8:25 pm-2:15 pm

Nonstop9h 50m

London Heathrow

Wed 10/22

6:15 am-11:15 am

1 stop13h 00m

$508

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/14

8:25 pm-2:15 pm

Nonstop9h 50m

London Heathrow

Thu 10/23

6:30 am-11:50 am

1 stop13h 20m

$509

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 11/18

8:36 am-10:25 am

2 stops17h 49m

London Heathrow

Wed 11/26

1:25 pm-11:30 am

2 stops30h 05m

$509

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 9/22

5:35 pm-11:20 am

Nonstop9h 45m

London Heathrow

Tue 10/7

6:15 am-11:15 am

1 stop13h 00m

$509

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 10/29

11:43 am-8:45 am

1 stop14h 02m

London Heathrow

Tue 11/11

6:20 am-11:25 am

1 stop13h 05m

$514

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 11/2

7:50 am-11:25 am

1 stop19h 35m

London Heathrow

Tue 11/11

6:20 am-11:25 am

1 stop13h 05m

$514

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 10/27

12:41 pm-9:40 am

2 stops37h 59m

London Heathrow

Fri 11/7

2:30 pm-9:31 am

1 stop27h 01m

$515

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 10/4

9:55 pm-6:20 am

1 stop24h 25m

London Heathrow

Thu 10/30

6:30 am-12:45 pm

1 stop13h 15m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results

...

Best time to book a flight from Seattle to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Seattle 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 Seattle to the United Kingdom

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

Currently, November is the cheapest month in which you can book a flight from Seattle to United Kingdom (average of $661). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,098). 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 SEA to GB?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to United Kingdom as you normally would.

Weekly flight availability from Seattle to United Kingdom

The most flights from SEA to GB0 are scheduled on a Monday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

Reviews of airlines servicing United Kingdom

Read reviews from past customers who have flown Delta, Virgin Atlantic, and Icelandair from Seattle to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

664 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Icelandair

7.0

Good

546 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Iberia

7.0

Good

2,929 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

British Airways

6.7

Okay

7,361 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Seattle to United Kingdom?
Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to United Kingdom from Seattle.
How long is the flight from Seattle to United Kingdom?
A quick flight from Seattle to United Kingdom can take about 9h 50m. Icelandair provides one of the quickest options available for as low as $508. Seattle and United Kingdom are separated by a distance of 4783 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Seattle to United Kingdom one-way?
The cheapest airlines for a one-way flight from Seattle to United Kingdom are WestJet ($275), Scandinavian Airlines ($318), and JetBlue ($333).
What are the most popular routes from Seattle to United Kingdom?
While some choose either Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London City, Seattle/Tacoma Intl - London Heathrow is the most popular route from Seattle to United Kingdom.
What are the most reliable airlines from Seattle to United Kingdom?
Consider Aeromexico (88%), KLM (87%) or Air France (87%) when booking your flight. These represent the most reliable airlines when flying from Seattle to United Kingdom.
What are the cheapest flights from Seattle to United Kingdom?
On average you can expect to pay $2,170 for a flight from Seattle to United Kingdom. The cheapest flight overall is $348 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at $471.
Can I find deals for flights from Seattle to United Kingdom that include hotel bookings?
Yes. In addition to deals on Seattle to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to United Kingdom?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to United Kingdom.
Can I find deals for business class flights from Seattle to United Kingdom?
Yes. Cheapflights offers flight deals from Seattle to United Kingdom 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 Seattle to United Kingdom?
Currently, November is the cheapest month in which you can book a flight from Seattle to United Kingdom (average of $661). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,098). 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

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Seattle to United Kingdom

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$213	Average$1,046	FlexibilityNo cancel fee	On-time62%
Lufthansa	Cheapest$378	Average$877	FlexibilityNo cancel fee	On-time76%
Icelandair	Cheapest$485	Average$688	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$523	Average$850	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$532	Average$741	FlexibilityNo cancel fee	On-time77%
Air France	Cheapest$532	Average$876	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$547	Average$907	FlexibilityNo cancel fee	On-time69%
Finnair	Cheapest$556	Average$718	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$558	Average$973	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$563	Average$975	FlexibilityNo cancel fee	On-timeN/A

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$225+ Cheap flights from Seattle (SEA) to the United Kingdom

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 10/8. 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 Seattle to United Kingdom

Keep the following information in mind while searching for Seattle to United Kingdom flight deals. Data was last updated September 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Seattle to United Kingdom

Cheapest flights from Seattle to United KingdomExplore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to United Kingdom

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Seattle to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Weekly flight availability from Seattle to United Kingdom

Reviews of airlines servicing United Kingdom

Read reviews from past customers who have flown Delta, Virgin Atlantic, and Icelandair from Seattle to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated 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 Seattle to United Kingdom. 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 from for flights from Seattle to United Kingdom?

How long is the flight from Seattle to United Kingdom?

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

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

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

What are the cheapest flights from Seattle to United Kingdom?

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

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

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

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

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

Top 10 airlines flying from Seattle to United Kingdom

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Travel Smart

Cheapest flights from Seattle to United Kingdom
Explore the most affordable flight options available from Seattle to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.