$282+ 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 5/19. 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
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
Keep the following information in mind while searching for Seattle to United Kingdom flight deals. Data was last updated April 17, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $535 (Flightnetwork) |
One-way from | $283 (Gotogate) |
Popular in | June |
Cheapest in | October |
Average price | $684 |
Good round-trip deal | $722 or less |
Good one-way deal | $489 or less |
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 April 17, 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 April 17, 2025.
This oojo deal was found by Cheapflights users on 4/16. 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.
This oojo deal was found by Cheapflights users on 4/16. 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.
This Iberia deal was found by Cheapflights users on 4/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/15. 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.
This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Finnair deal was found by Cheapflights users on 4/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelocity deal was found by Cheapflights users on 4/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 4/16. 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.
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/16. 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.
Cheapflights Fare Finder
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 April 17, 2025.
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
Tue 10/7
7:00 pm-11:40 am
1 stop32h 40m
Manchester
Wed 11/5
11:55 am-5:00 pm
1 stop13h 05m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 10/1
3:45 pm-11:55 am
1 stop12h 10m
London Heathrow
Sat 10/11
1:05 pm-5:50 pm
1 stop12h 45m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Mon 4/28
11:20 am-10:30 am
1 stop15h 10m
London Heathrow
Tue 5/13
9:25 am-11:10 am
Nonstop9h 45m
SeattleManchester
SEA - MAN
SEAMAN
Seattle/Tacoma Intl
Mon 5/12
3:45 pm-4:50 pm
2 stops17h 05m
Manchester
Fri 5/16
9:35 am-8:40 pm
2 stops19h 05m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Mon 4/28
1:30 pm-6:50 am
Nonstop9h 20m
London Heathrow
Tue 5/13
9:25 am-11:10 am
Nonstop9h 45m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 5/4
7:20 am-9:35 am
2 stops18h 15m
London Heathrow
Wed 5/21
8:40 am-7:37 pm
2 stops18h 57m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Sat 9/20
3:45 pm-2:40 pm
1 stop14h 55m
London Gatwick
Sat 10/4
3:40 pm-8:40 pm
1 stop13h 00m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 5/13
8:20 pm-2:15 pm
Nonstop9h 55m
London Heathrow
Wed 5/21
11:30 am-5:25 pm
1 stop13h 55m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 5/1
7:35 pm-10:55 am
1 stop31h 20m
London Gatwick
Sun 5/4
10:55 am-1:25 pm
1 stop34h 30m
SeattleLondon
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Mon 9/8
7:20 am-10:00 am
1 stop18h 40m
London Heathrow
Tue 9/16
8:45 am-6:36 pm
2 stops17h 51m
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?
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 $1,110). 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 April 17, 2025.
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 April 17, 2025.
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).
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 April 17, 2025.
See what other customers who have flown with Delta, KLM and Finnair 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.
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
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.
Browse thousands of different options on Cheapflights for your next trip
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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.
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 April 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$378 | Average$915 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$500 | Average$713 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$550 | Average$1,043 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$568 | Average$863 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$581 | Average$734 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$583 | Average$963 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$584 | Average$1,032 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$585 | Average$925 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$595 | Average$974 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$597 | Average$762 | FlexibilityNo cancel fee | On-time76% |