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 Icelandair ($219), Lufthansa ($264), and WestJet ($280).

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 $2,488 for a flight from Seattle to United Kingdom. The cheapest flight overall is $341 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 Scandinavian Airlines (92%), KLM (91%) or Air France (91%) 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 44% 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 $805 1-2 weeks out and tickets from $981 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 $768 for the month, but tickets can be as low as $539. 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.

$219+ Flights from Seattle to the United Kingdom

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Cheap flight deals from Seattle to United Kingdom

Round-trip from	$491 (Mytrip)
One-way from	$219 (Cheapflightsfares)
Popular in	June
Cheapest in	October
Average price	$935
Good round-trip deal	$589 or less
Good one-way deal	$426 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 ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 29, 2025.

Mon 8/257:20 amSEA - MAN

2 stops20h 40mMultiple Airlines

Wed 9/310:15 pmMAN - SEA

3 stops28h 21mMultiple Airlines

Deal found 7/29

$491

Mon 8/257:20 amSEA - GLA

2 stops24h 05mMultiple Airlines

Mon 9/19:50 pmGLA - SEA

2 stops29h 41mMultiple Airlines

Deal found 7/28

$498

Mon 11/242:35 pmSEA - LGW

2 stops22h 25mMultiple Airlines

Sun 12/78:25 amLGW - SEA

2 stops16h 35mMultiple Airlines

Deal found 7/29

$515

Wed 9/101:30 pmSEA - LHR

Nonstop9h 20mBritish Airways

Wed 9/249:50 amLHR - SEA

Nonstop9h 45mBritish Airways

Deal found 7/29

$516

Wed 10/86:50 pmSEA - STN

2 stops19h 40mMultiple Airlines

Tue 10/149:25 pmSTN - SEA

2 stops24h 51mMultiple Airlines

Deal found 7/28

$517

Wed 9/1011:30 pmSEA - LGW

1 stop31h 10mIcelandair

Sun 9/283:40 pmLGW - SEA

1 stop13h 00mIcelandair

Deal found 7/28

$517

Tue 8/195:35 pmSEA - LHR

Nonstop9h 45mDelta

Thu 8/281:25 pmLHR - SEA

Nonstop10h 05mDelta

Deal found 7/28

$517

Mon 8/114:25 pmSEA - LHR

1 stop16h 00mSWISS

Mon 8/188:05 pmLHR - SEA

2 stops30h 31mSWISS

Deal found 7/29

$518

Wed 10/86:50 pmSEA - LTN

2 stops17h 55mMultiple Airlines

Tue 10/149:50 pmLTN - SEA

2 stops28h 46mMultiple Airlines

Deal found 7/28

$518

Wed 8/277:20 amSEA - EDI

2 stops22h 55mMultiple Airlines

Wed 9/36:55 amEDI - SEA

2 stops18h 04mMultiple Airlines

Deal found 7/28

$519

Sat 10/113:45 pmSEA - LHR

1 stop12h 10mIcelandair

Wed 10/229:25 pmLHR - SEA

1 stop28h 25mIcelandair

Deal found 7/27

$521

Mon 8/187:15 pmSEA - LHR

2 stops29h 20mAir Canada

Tue 8/262:05 pmLHR - SEA

2 stops32h 11mAir Canada

Deal found 7/27

$524

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 July 29, 2025.

Mon 8/257:20 amSEA - MAN

2 stops20h 40mMultiple Airlines

Wed 9/310:15 pmMAN - SEA

3 stops28h 21mMultiple Airlines

Deal found 7/29

$491

Wed 9/108:25 pmSEA - LHR

Nonstop9h 50mDelta

Fri 9/266:00 pmLHR - SEA

Nonstop10h 25mDelta

Deal found 7/29

$516

Wed 9/1011:30 pmSEA - LGW

1 stop31h 10mIcelandair

Sun 9/283:40 pmLGW - SEA

1 stop13h 00mIcelandair

Deal found 7/28

$517

Tue 8/198:20 pmSEA - LHR

Nonstop9h 20mBritish Airways

Thu 8/289:50 amLHR - SEA

Nonstop9h 45mBritish Airways

Deal found 7/28

$517

Mon 8/114:25 pmSEA - LHR

1 stop16h 00mSWISS

Mon 8/188:05 pmLHR - SEA

2 stops30h 31mSWISS

Deal found 7/29

$518

Mon 8/187:15 pmSEA - LHR

2 stops29h 20mAir Canada

Tue 8/262:05 pmLHR - SEA

2 stops32h 11mAir Canada

Deal found 7/27

$524

Sun 10/191:30 pmSEA - LHR

Nonstop9h 20mIberia

Wed 11/512:35 pmLHR - SEA

1 stop18h 43mIberia

Deal found 7/27

$527

Mon 9/15:02 amSEA - LHR

1 stop20h 38mUnited Airlines

Tue 9/2311:25 amLHR - SEA

1 stop14h 29mUnited Airlines

Deal found 7/29

$530

Thu 9/118:25 pmSEA - LHR

Nonstop9h 50mVirgin Atlantic

Thu 9/185:25 pmLHR - SEA

Nonstop10h 25mVirgin Atlantic

Deal found 7/27

$539

Sun 8/106:50 pmSEA - LHR

1 stop17h 55mLufthansa

Wed 8/202:05 pmLHR - SEA

2 stops32h 11mLufthansa

Deal found 7/28

$541

Sun 8/105:40 pmSEA - LHR

1 stop12h 10mKLM

Fri 9/196:30 amLHR - SEA

1 stop13h 15mKLM

Deal found 7/29

$542

Tue 9/307:00 amSEA - LHR

2 stops23h 20mAustrian Airlines

Wed 10/229:05 amLHR - SEA

2 stops41h 44mAustrian Airlines

Deal found 7/29

$544

Last-minute flights from Seattle to United Kingdom
Discover last-minute flight deals from Seattle to United Kingdom. Data last updated July 29, 2025 and is based on user searches.

Sun 8/32:55 pmSEA - LHR

1 stop14h 25mUnited Airlines

Tue 8/1911:25 amLHR - SEA

1 stop14h 33mUnited Airlines

Deal found 7/27

$522

Sun 8/31:55 pmSEA - LHR

1 stop12h 50mKLM

Tue 8/196:30 amLHR - SEA

2 stops18h 08mKLM

Deal found 7/27

$547

Sun 8/32:55 pmSEA - LHR

1 stop14h 25mUnited Airlines

Fri 8/2211:25 amLHR - SEA

1 stop19h 34mUnited Airlines

Deal found 7/27

$527

Mon 8/47:20 amSEA - LHR

1 stop18h 40mAir Canada

Tue 8/262:05 pmLHR - SEA

2 stops28h 55mAir Canada

Deal found 7/27

$524

Mon 8/47:00 pmSEA - LHR

1 stop32h 55mIcelandair

Mon 8/259:25 pmLHR - SEA

1 stop22h 00mIcelandair

Deal found 7/27

$538

Tue 8/58:25 pmSEA - LHR

Nonstop9h 50mVirgin Atlantic

Tue 8/121:25 pmLHR - SEA

Nonstop10h 05mVirgin Atlantic

Deal found 7/29

$516

Tue 8/57:15 amSEA - LHR

1 stop18h 00mDelta

Thu 8/145:25 pmLHR - SEA

Nonstop10h 20mDelta

Deal found 7/29

$520

Tue 8/55:15 amSEA - LHR

1 stop21h 35mIberia

Thu 8/1412:00 pmLHR - SEA

1 stop17h 38mIberia

Deal found 7/29

$530

Tue 8/511:30 pmSEA - LGW

1 stop28h 15mIcelandair

Wed 8/203:35 pmLGW - SEA

1 stop13h 05mIcelandair

Deal found 7/29

$533

Tue 8/51:55 pmSEA - LCY

1 stop33h 20mDelta

Fri 8/1510:00 amLCY - SEA

1 stop13h 55mDelta

Deal found 7/29

$566

Wed 8/67:35 pmSEA - LGW

1 stop14h 50mMultiple Airlines

Wed 8/139:45 amLGW - SEA

1 stop16h 05mMultiple Airlines

Deal found 7/28

$557

Wed 8/610:00 amSEA - LHR

2 stops22h 40mLufthansa

Tue 8/199:30 amLHR - SEA

2 stops36h 46mLufthansa

Deal found 7/28

$563

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 July 29, 2025.

Sat 10/47:00 pmSEA - LHR

1 stop17h 20mIcelandair

Deal found 7/27

$219

Wed 10/156:30 amSEA - LGW

1 stop20h 25mMultiple Airlines

Deal found 7/29

$242

Wed 10/17:00 pmSEA - LGW

1 stop11h 40mIcelandair

Deal found 7/27

$255

Tue 10/288:00 amSEA - LHR

3 stops26h 30mMultiple Airlines

Deal found 7/28

$255

Wed 9/102:20 pmSEA - LHR

1 stop12h 20mLufthansa

Deal found 7/28

$264

Wed 10/158:50 amSEA - SEN

3 stops28h 00mMultiple Airlines

Deal found 7/29

$274

Mon 12/13:10 pmSEA - LHR

1 stop13h 40mWestJet

Deal found 7/29

$280

Wed 10/158:50 amSEA - LTN

3 stops29h 45mMultiple Airlines

Deal found 7/29

$291

Wed 10/111:25 amSEA - STN

3 stops24h 35mMultiple Airlines

Deal found 7/27

$294

Thu 10/231:50 pmSEA - EDI

2 stops25h 30mMultiple Airlines

Deal found 7/28

$308

Thu 9/116:24 pmSEA - GLA

2 stops55h 31mMultiple Airlines

Deal found 7/27

$337

Sun 10/510:10 amSEA - MAN

3 stops27h 30mMultiple Airlines

Deal found 7/28

$350

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

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 8/25

7:20 am-12:00 pm

2 stops20h 40m

Manchester

Wed 9/3

10:15 pm-6:36 pm

3 stops28h 21m

$491

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 8/25

7:20 am-3:25 pm

2 stops24h 05m

Glasgow Intl

Mon 9/1

9:50 pm-7:31 pm

2 stops29h 41m

$498

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 11/24

2:35 pm-9:00 pm

2 stops22h 25m

London Gatwick

Sun 12/7

8:25 am-5:00 pm

2 stops16h 35m

$515

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 9/10

8:25 pm-2:15 pm

Nonstop9h 50m

London Heathrow

Fri 9/26

6:00 pm-8:25 pm

Nonstop10h 25m

$516

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 9/10

11:30 pm-2:40 pm

1 stop31h 10m

London Gatwick

Sun 9/28

3:40 pm-8:40 pm

1 stop13h 00m

$517

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 8/19

8:20 pm-1:40 pm

Nonstop9h 20m

London Heathrow

Thu 8/28

9:50 am-11:35 am

Nonstop9h 45m

$517

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 10/8

6:50 pm-10:30 pm

2 stops19h 40m

London Stansted

Tue 10/14

9:25 pm-2:16 pm

2 stops24h 51m

$517

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 8/11

4:25 pm-4:25 pm

1 stop16h 00m

London Heathrow

Mon 8/18

8:05 pm-6:36 pm

2 stops30h 31m

$518

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 10/11

3:45 pm-11:55 am

1 stop12h 10m

London Heathrow

Wed 10/22

9:25 pm-5:50 pm

1 stop28h 25m

$521

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 8/18

7:15 pm-8:35 am

2 stops29h 20m

London Heathrow

Tue 8/26

2:05 pm-2:16 pm

2 stops32h 11m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 $1,097). 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 (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing United Kingdom

Read reviews from past customers who have flown Delta, KLM, and Austrian Airlines 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

7,977 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

7,977 reviews

Delta

8.0

Very good

7,977 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!

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,977 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!

Austrian Airlines

7.6

Good

821 reviews

Delta

8.0

Very good

7,977 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!

Air France

7.5

Good

1,465 reviews

Delta

8.0

Very good

7,977 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!

SWISS

7.5

Good

1,683 reviews

Delta

8.0

Very good

7,977 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.
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 Icelandair ($219), Lufthansa ($264), and WestJet ($280).
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 Scandinavian Airlines (92%), KLM (91%) or Air France (91%) 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 $2,488 for a flight from Seattle to United Kingdom. The cheapest flight overall is $341 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 $1,097). 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$1,040	FlexibilityNo cancel fee	On-time62%
Lufthansa	Cheapest$378	Average$887	FlexibilityNo cancel fee	On-time76%
Icelandair	Cheapest$479	Average$698	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$532	Average$741	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$547	Average$908	FlexibilityNo cancel fee	On-time69%
Finnair	Cheapest$556	Average$729	FlexibilityNo cancel fee	On-time76%
Air France	Cheapest$565	Average$970	FlexibilityNo cancel fee	On-time77%
American Airlines	Cheapest$568	Average$832	FlexibilityNo cancel fee	On-time71%
Aer Lingus	Cheapest$572	Average$887	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$574	Average$992	FlexibilityNo cancel fee	On-time75%

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$219+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to United Kingdom with Cheapflights

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2. Select your favorite providers

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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 July 29, 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 July 29, 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 July 29, 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 July 29, 2025.

Weekly flight availability from Seattle to United Kingdom

Reviews of airlines servicing United Kingdom

Read reviews from past customers who have flown Delta, KLM, and Austrian Airlines 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?

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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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 July 29, 2025.