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$242+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Seattle to United Kingdom

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to United Kingdom (GB0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

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 November 21, 2024.

This Icelandair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:35 pmSEA - MAN
1 stop12h 10mIcelandair
Thu 1/2311:55 amMAN - SEA
1 stop13h 05mIcelandair
Deal found 11/20$559
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/32:35 pmSEA - LGW
1 stop12h 20mIcelandair
Sat 2/811:55 amLGW - SEA
1 stop13h 05mIcelandair
Deal found 11/19$615
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:10 amSEA - MAN
1 stop15h 50mDelta
Wed 12/1112:00 pmMAN - SEA
1 stop20h 21mDelta
Deal found 11/20$616
This FlightHub deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/292:35 pmSEA - LHR
1 stop12h 15mIcelandair
Sat 1/1812:15 pmLHR - SEA
1 stop12h 45mIcelandair
Deal found 11/20$624
This Lufthansa deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/42:00 pmSEA - MAN
1 stop13h 55mLufthansa
Thu 1/236:05 amMAN - SEA
2 stops20h 25mLufthansa
Deal found 11/20$629
This Air Canada deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:35 amSEA - LHR
1 stop15h 35mMultiple Airlines
Fri 1/176:30 amLHR - SEA
2 stops19h 55mMultiple Airlines
Deal found 11/20$632
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/22:24 pmSEA - LGW
1 stop36h 11mMultiple Airlines
Fri 12/63:05 pmLGW - SEA
2 stops51h 32mMultiple Airlines
Deal found 11/20$634
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/42:00 pmSEA - MAN
1 stop16h 50mUnited Airlines
Wed 12/116:00 amMAN - SEA
2 stops24h 10mUnited Airlines
Deal found 11/20$634
This Air France deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/412:34 pmSEA - MAN
1 stop19h 21mMultiple Airlines
Mon 12/98:30 pmMAN - SEA
1 stop23h 22mMultiple Airlines
Deal found 11/20$640
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:55 pmSEA - LHR
Nonstop9h 45mDelta
Thu 1/166:30 amLHR - SEA
1 stop13h 20mDelta
Deal found 11/20$646
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:32 pmSEA - LHR
1 stop15h 28mUnited Airlines
Thu 1/166:30 amLHR - SEA
1 stop13h 40mUnited Airlines
Deal found 11/20$649
This Lufthansa deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:35 amSEA - LHR
1 stop15h 35mLufthansa
Thu 1/91:00 pmLHR - SEA
1 stop13h 25mLufthansa
Deal found 11/20$660

Find flights from Seattle to United Kingdom within your budget

Customize your flight search to find flights from Seattle to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/11

2:35 pm-10:45 am

1 stop12h 10m

Manchester

Thu 2/27

11:55 am-5:00 pm

1 stop13h 05m

$535

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 2/21

2:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

Wed 2/26

12:35 pm-5:00 pm

1 stop12h 25m

$549

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Sun 1/12

2:35 pm-7:50 pm

2 stops21h 15m

Edinburgh Turnhouse

Mon 1/27

8:20 am-5:00 pm

2 stops16h 40m

$558

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/11

1:35 pm-11:25 am

1 stop13h 50m

Manchester

Thu 2/27

7:45 am-4:55 pm

1 stop17h 10m

$600

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/11

6:50 pm-6:40 pm

1 stop15h 50m

Manchester

Thu 2/27

9:55 am-11:22 pm

2 stops21h 27m

$607

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 3/16

3:35 pm-10:55 am

1 stop12h 20m

London Gatwick

Thu 3/27

11:55 am-6:00 pm

1 stop13h 05m

$610

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 12/4

7:10 am-7:00 am

1 stop15h 50m

Manchester

Wed 12/11

12:00 pm-12:21 am

1 stop20h 21m

$616

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 4/27

10:55 pm-6:40 am

1 stop23h 45m

Manchester

Thu 5/8

1:30 pm-12:06 am

1 stop18h 36m

$621

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 2/19

6:50 pm-7:25 pm

1 stop16h 35m

Glasgow Intl

Thu 2/27

9:55 am-4:55 pm

1 stop15h 00m

$625

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 1/14

2:35 pm-10:50 am

1 stop12h 15m

London Heathrow

Sun 1/19

8:20 am-2:21 pm

2 stops38h 01m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 60 results
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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.

Travel insights for flights from Seattle to United Kingdom

Get recent, data-driven insights about flights from Seattle to United Kingdom including ideal travel times, pricing trends, and more.

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 $648). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,089). 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?

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 November 21, 2024.

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

Explore weekly flight availability from Seattle to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from SEA to GB0 are scheduled on a Tuesday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in United Kingdom by month

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

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.

Temperature in United Kingdom by month

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

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).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated November 21, 2024.
See what other customers who have flown with WestJet, Air France and KLM from Seattle to United Kingdom have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,759 reviews
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,759 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    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 ($245), WestJet ($271), and Scandinavian Airlines ($382).

  • 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 KLM (76%), Air France (76%) or Delta (76%) 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 $1,763 for a flight from Seattle to United Kingdom. The cheapest flight overall is $407 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at $569.

  • 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 $648). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,089). 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.

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Alternative routes for Seattle to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to United Kingdom

Discover the top 10 airlines that operate flights from Seattle to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$384Average$884FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$499Average$724FlexibilityNo cancel feeOn-time76%
FinnairCheapest$560Average$758FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$577Average$889FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$579Average$900FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$583Average$746FlexibilityNo cancel feeOn-time77%
DeltaCheapest$584Average$982FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$586Average$888FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$588Average$1,050FlexibilityNo cancel feeOn-time77%
KLMCheapest$598Average$972FlexibilityNo cancel feeOn-time75%
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