HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$468+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from United Kingdom to Seattle with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from United Kingdom to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from United Kingdom (GB0) to Seattle (SEA). 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 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 November 21, 2024.

This United Airlines deal was found by Cheapflights users on 11/21. 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.
Sat 11/231:45 pmLHR - SEA
1 stop37h 28mUnited Airlines
Mon 11/256:05 amSEA - LHR
1 stop16h 25mUnited Airlines
Deal found 11/21$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.
Tue 11/2612:00 pmLGW - SEA
1 stop36h 23mMultiple Airlines
Mon 1/135:23 pmSEA - LGW
1 stop33h 12mMultiple Airlines
Deal found 11/20$633
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/411:55 amLGW - SEA
1 stop13h 05mIcelandair
Mon 12/162:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 11/20$645
This Gotogate deal was found by Cheapflights users on 11/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/278:40 pmLHR - SEA
1 stop28h 20mIcelandair
Mon 12/22:35 pmSEA - LHR
1 stop20h 55mIcelandair
Deal found 11/21$655
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.
Fri 12/65:50 amLTN - SEA
1 stop20h 25mMultiple Airlines
Sun 12/157:00 amSEA - LTN
2 stops17h 50mMultiple Airlines
Deal found 11/20$676
This Expedia deal was found by Cheapflights users on 11/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:30 amLHR - SEA
1 stop13h 40mMultiple Airlines
Wed 12/117:00 amSEA - LHR
1 stop16h 55mMultiple Airlines
Deal found 11/21$695
This Delta deal was found by Cheapflights users on 11/21. 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.
Mon 12/304:00 pmLHR - SEA
1 stop24h 55mDelta
Thu 2/206:15 amSEA - LHR
1 stop17h 40mDelta
Deal found 11/21$704
This Air Canada deal was found by Cheapflights users on 11/21. 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.
Wed 12/41:00 pmLHR - SEA
1 stop17h 00mAir Canada
Wed 12/1110:35 amSEA - LHR
2 stops17h 15mAir Canada
Deal found 11/21$705
This ChecknFly deal was found by Cheapflights users on 11/21. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/101:15 pmLHR - SEA
Nonstop10h 00mKLM
Tue 1/75:45 pmSEA - LHR
Nonstop9h 25mKLM
Deal found 11/21$715
This British Airways deal was found by Cheapflights users on 11/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:20 amLHR - SEA
1 stop16h 57mBritish Airways
Thu 2/206:50 pmSEA - LHR
Nonstop9h 25mBritish Airways
Deal found 11/21$717
This Netflights deal was found by Cheapflights users on 11/21. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:20 amLHR - SEA
1 stop13h 00mVirgin Atlantic
Tue 1/75:45 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 11/21$720
This ChecknFly deal was found by Cheapflights users on 11/21. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:40 amLHR - SEA
1 stop13h 40mLufthansa
Tue 1/711:59 pmSEA - LHR
2 stops21h 56mLufthansa
Deal found 11/21$724

Find flights from United Kingdom to Seattle within your budget

Customize your flight search to find flights from United Kingdom to Seattle 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 2/7

8:40 pm-5:00 pm

1 stop28h 20m

Seattle/Tacoma Intl

Thu 3/6

2:35 pm-7:30 pm

1 stop20h 55m

$616

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 2/7

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Thu 3/6

2:35 pm-10:55 am

1 stop12h 20m

$618

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 2/10

3:15 pm-7:56 pm

2 stops36h 41m

Seattle/Tacoma Intl

Wed 2/12

3:15 pm-12:50 pm

1 stop13h 35m

$620

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 1/21

12:00 pm-12:14 am

1 stop20h 14m

Seattle/Tacoma Intl

Thu 1/30

5:30 am-10:35 am

1 stop21h 05m

$643

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 1/13

9:25 am-8:04 pm

1 stop18h 39m

Seattle/Tacoma Intl

Wed 1/29

9:45 am-12:05 pm

1 stop18h 20m

$652

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 1/15

6:30 am-11:50 am

1 stop13h 20m

Seattle/Tacoma Intl

Wed 1/22

7:00 pm-12:40 pm

Nonstop9h 40m

$655

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Mon 1/13

6:10 am-5:00 pm

2 stops18h 50m

Seattle/Tacoma Intl

Mon 1/27

2:35 pm-7:10 pm

2 stops20h 35m

$659

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 1/13

1:15 pm-3:15 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Wed 1/29

5:45 pm-11:10 am

Nonstop9h 25m

$660

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 1/13

2:30 pm-9:50 am

2 stops27h 20m

Seattle/Tacoma Intl

Wed 1/29

10:35 am-10:10 am

1 stop15h 35m

$662

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 1/8

6:00 pm-9:30 pm

1 stop35h 30m

Seattle/Tacoma Intl

Mon 1/13

9:20 am-7:25 am

1 stop14h 05m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from United Kingdom to Seattle

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

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?

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 November 21, 2024.

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.

Rainfall in Seattle by month

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

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

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated November 21, 2024.
Peruse reviews from past customers who have flown with Icelandair, Lufthansa and Delta 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.
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Air New Zealand
8.1
Very good
529 reviews
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Delta
8.0
Very good
8,755 reviews
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

KLM
7.8
Good
1,349 reviews
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Finnair
7.7
Good
1,300 reviews
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

SWISS
7.6
Good
1,636 reviews
Air New Zealand
8.1
Very good
529 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.4

Overall

8.1

Crew

8.6

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

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?

    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 Aer Lingus. According to our data, you can fly for as low as $526. Users have also found prices from $533 and $534 on WestJet and Icelandair, respectively.

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

    Most travelers choose London Heathrow - Seattle/Tacoma Intl, London City - Seattle/Tacoma Intl or London Gatwick - 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 Air France (70%), Delta (70%) and Virgin Atlantic (70%).

  • What are the cheapest flights from United Kingdom to Seattle?

    While on average a flight from United Kingdom to Seattle is generally $1,490, our data shows the cheapest flight currently is $729. When looking at the most popular route, (London Heathrow - Seattle/Tacoma Intl), you can expect to pay $537 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

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.
Frankfurt to Seattle flights
Heathrow to Seattle flights
Charles de Gaulle to Seattle flights
Amsterdam to Seattle flights
Gatwick to Seattle flights
Heathrow to Portland flights
Orly to Seattle flights
Munich to Seattle flights
Berlin to Seattle flights
Istanbul to Seattle flights
Dublin to Seattle flights
Madrid to Seattle flights
Frederic Chopin to Seattle flights
Athens to Seattle flights
Luton to Seattle flights
Gatwick to Portland flights
Barcelona-El Prat to Seattle flights
Manchester to Seattle flights
Charles de Gaulle to Portland flights
Linate to Seattle flights
Vienna to Seattle flights
Belfast Intl to Seattle flights
Lyon to Seattle flights
Leonardo da Vinci/Fiumicino to Seattle flights
Oslo Gardermoen to Seattle flights
Belfast City to Seattle flights
Krakow to Seattle flights
Edinburgh to Seattle flights
Amsterdam to Portland flights
Bruxelles-National to Seattle flights
Gothenburg to Seattle flights
Copenhagen to Seattle flights
Duesseldorf Intl to Seattle flights
Zurich to Seattle flights
Hamburg to Seattle flights
Prague to Seattle flights
Bergamo to Seattle flights
Malpensa to Seattle flights
Bremen to Seattle flights
Budapest to Seattle flights
Arlanda to Seattle flights
Geneva to Seattle flights
Birmingham to Seattle flights
Glasgow Intl to Seattle flights
Otopeni Intl to Seattle flights
Heathrow to Spokane flights
Stansted to Seattle flights

Top 8 airlines flying from United Kingdom to Seattle

Discover the top 8 airlines that operate flights from United Kingdom to Seattle. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$549Average$933FlexibilityNo cancel feeOn-time72%
IcelandairCheapest$558Average$881FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$600Average$983FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$621Average$948FlexibilityNo cancel feeOn-time71%
DeltaCheapest$654Average$883FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$671Average$1,021FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$674Average$844FlexibilityNo cancel feeOn-time75%
IberiaCheapest$677Average$868FlexibilityNo cancel feeOn-time77%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines