HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
United Kingdom

$249+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to United Kingdom 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 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 diciembre 18, 2024.

Round-trip from

$515
(Ticket)

One-way from

$249
(Kiwi.com)
From Seattle/Tacoma Intl to United Kingdom
Search Deals
One-way flight from Seattle/Tacoma Intl to United Kingdom
Search Deals

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 diciembre 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/315:00 amSEA - MAN
2 stops25h 50mUnited Airlines
mié. 1/811:05 amMAN - SEA
2 stops43h 25mUnited Airlines
Deal found 12/17$751
This Delta deal was found by Cheapflights users on 12/17. 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.
mar. 12/311:35 pmSEA - MAN
1 stop21h 05mDelta
mié. 1/82:00 pmMAN - SEA
1 stop28h 38mDelta
Deal found 12/17$767
This Expedia deal was found by Cheapflights users on 12/18. 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.
mar. 12/3110:35 amSEA - LHR
1 stop15h 35mLufthansa
jue. 1/91:25 pmLHR - SEA
2 stops28h 25mLufthansa
Deal found 12/18$834
This Air Canada deal was found by Cheapflights users on 12/18. 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.
mar. 12/3110:35 amSEA - LHR
1 stop15h 35mAir Canada
jue. 1/911:10 amLHR - SEA
1 stop18h 20mAir Canada
Deal found 12/18$840
This United Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/3110:35 amSEA - LHR
1 stop15h 35mUnited Airlines
jue. 1/91:00 pmLHR - SEA
1 stop17h 00mUnited Airlines
Deal found 12/17$842
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
mar. 12/3111:49 amSEA - LGW
1 stop14h 46mMultiple Airlines
jue. 1/912:00 pmLGW - SEA
1 stop28h 57mMultiple Airlines
Deal found 12/18$870
This Virgin Atlantic deal was found by Cheapflights users on 12/18. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/315:45 pmSEA - LHR
Nonstop9h 25mVirgin Atlantic
jue. 1/912:40 pmLHR - SEA
Nonstop10h 00mVirgin Atlantic
Deal found 12/18$930
This Air Canada deal was found by Cheapflights users on 12/17. 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.
mar. 12/247:15 pmSEA - LHR
1 stop30h 55mMultiple Airlines
vie. 1/316:30 amLHR - SEA
2 stops20h 00mMultiple Airlines
Deal found 12/17$944
This Delta deal was found by Cheapflights users on 12/17. 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.
lun. 12/305:45 pmSEA - LHR
Nonstop9h 25mDelta
mié. 1/83:50 pmLHR - SEA
Nonstop10h 30mDelta
Deal found 12/17$980
This Expedia deal was found by Cheapflights users on 12/17. 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.
mar. 12/246:50 pmSEA - LHR
Nonstop9h 25mIberia
vie. 1/313:00 pmLHR - SEA
Nonstop9h 55mIberia
Deal found 12/17$1,005
This Expedia deal was found by Cheapflights users on 12/17. 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.
mar. 12/246:50 pmSEA - LHR
Nonstop9h 25mBritish Airways
vie. 1/3110:40 amLHR - SEA
1 stop18h 41mBritish Airways
Deal found 12/17$1,015
This KLM deal was found by Cheapflights users on 12/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/175:45 pmSEA - LHR
Nonstop9h 25mKLM
mié. 12/256:30 amLHR - SEA
1 stop13h 22mKLM
Deal found 12/17$1,042

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 2,558,603 searches. Data last updated diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

sáb. 2/1

2:35 pm-10:45 am

1 stop12h 10m

Manchester

sáb. 2/8

11:55 am-5:00 pm

1 stop13h 05m

$515

SeattleBirmingham

SEA - BHX

SEABHX

Seattle/Tacoma Intl

mar. 1/21

2:35 pm-7:55 pm

2 stops21h 20m

Birmingham

mar. 1/28

7:40 am-5:00 pm

2 stops17h 20m

$560

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mié. 1/22

7:10 am-7:00 am

1 stop15h 50m

Manchester

mié. 1/29

2:00 pm-10:38 am

1 stop28h 38m

$566

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mié. 1/22

2:35 pm-10:05 pm

2 stops23h 30m

Manchester

mié. 1/29

6:05 am-5:00 pm

2 stops18h 55m

$571

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

mié. 1/22

2:35 pm-10:45 pm

2 stops24h 10m

Edinburgh Turnhouse

jue. 1/30

7:25 am-5:00 pm

2 stops17h 35m

$583

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

mié. 2/12

3:15 pm-12:50 pm

1 stop13h 35m

London Heathrow

lun. 2/24

2:50 pm-2:21 pm

1 stop31h 31m

$597

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

mié. 4/30

3:45 pm-11:45 am

1 stop12h 00m

London Gatwick

mié. 5/21

3:40 pm-8:40 pm

1 stop13h 00m

$598

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

mar. 4/8

3:45 pm-11:55 am

1 stop12h 10m

London Heathrow

mié. 5/14

9:25 pm-8:40 pm

1 stop31h 15m

$598

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mar. 2/4

1:35 pm-11:25 am

1 stop13h 50m

Manchester

mar. 2/18

6:15 am-11:20 am

1 stop13h 05m

$619

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mar. 1/21

6:50 pm-6:40 pm

1 stop15h 50m

Manchester

mar. 1/28

9:45 am-4:55 pm

1 stop15h 10m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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

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 $661). Flying from Seattle to United Kingdom in June is currently the most expensive (average of $1,135). 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 diciembre 18, 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 diciembre 18, 2024.

The most flights from SEA to GB0 are scheduled on a Tuesday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 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 diciembre 18, 2024.
See what other customers who have flown with Scandinavian Airlines, WestJet and American Airlines 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
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,554 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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 WestJet ($269), Icelandair ($272), and Lufthansa ($376).

  • 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 (89%), Singapore Airlines (86%) or Air France (84%) 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 $1,827 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 $548.

  • 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 $1,135). 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 Seattle to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Heathrow flights
Seattle to Charles de Gaulle flights
Seattle to Istanbul flights
Seattle to Gatwick flights
Seattle to London City flights
Seattle to Leonardo da Vinci/Fiumicino flights
Seattle to Amsterdam flights
Seattle to Dublin flights
Seattle to Orly flights
Seattle to Frankfurt flights
Seattle to Keflavik Intl flights
Portland to Heathrow flights
Seattle to Lisbon flights
Seattle to Barcelona-El Prat flights
Seattle to Athens flights
Seattle to Munich flights
Seattle to Madrid flights
Seattle to Sabiha Gokcen flights
Seattle to Zurich flights
Seattle to Bruxelles-National flights
Seattle to Malpensa flights
Seattle to Vicenza flights
Portland to Charles de Gaulle flights
Seattle to Linate flights
Portland to Gatwick flights
Seattle to Copenhagen flights
Portland to Amsterdam flights
Seattle to Oslo Gardermoen flights
Seattle to Edinburgh flights
Portland to London City flights
Portland to Dublin flights
Seattle to Berlin flights
Seattle to Florence flights
Portland to Leonardo da Vinci/Fiumicino flights
Seattle to Vienna flights
Seattle to Geneva flights
Seattle to Stansted flights
Seattle to Málaga flights
Portland to Madrid flights
Seattle to Prague flights
Portland to Athens flights
Seattle to Budapest flights
Portland to Orly flights
Seattle to Luton flights
Seattle to Duesseldorf Intl flights
Portland to Lisbon flights
Seattle to Arlanda flights
Seattle to Glasgow Intl flights
Seattle to Frederic Chopin flights
Portland to Frankfurt flights

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 2,558,603 searches. Data last updated diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$384Average$898FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$497Average$724FlexibilityNo cancel feeOn-time76%
FinnairCheapest$560Average$832FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$568Average$880FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$579Average$911FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$583Average$748FlexibilityNo cancel feeOn-time77%
DeltaCheapest$584Average$1,007FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$586Average$899FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$588Average$1,055FlexibilityNo cancel feeOn-time77%
KLMCheapest$597Average$995FlexibilityNo cancel feeOn-time75%
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.