Cheap flights from London Stansted Airport to Seattle from £391
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Stansted to Seattle
Cheapest flights from Stansted to SeattleExplore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.
Explore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.
Best flights from Stansted to SeattleDiscover carefully curated flight deals from Stansted to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Discover carefully curated flight deals from Stansted to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Last-minute flights from Stansted to SeattleDiscover last-minute flight deals from Stansted to Seattle. Data last updated 12 October 2026 and is based on user searches.
Discover last-minute flight deals from Stansted to Seattle. Data last updated 12 October 2026 and is based on user searches.
One-way flights from Stansted to SeattleSearch for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Search for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Find flight deals from Stansted to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) 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 12 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from London Stansted Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Tue 27/10
06:25-18:00
2 stops18h 35m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Tue 9/2
17:20-22:45
2 stops37h 25m
Seattle/Tacoma Intl
Tue 9/3
11:00-09:55
2 stops38h 55m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Thu 29/10
17:20-15:32
2 stops29h 12m
Seattle/Tacoma Intl
Wed 11/11
10:50-16:20
2 stops45h 30m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Tue 27/10
17:20-15:32
2 stops29h 12m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Thu 19/11
17:20-17:10
1 stop31h 50m
Seattle/Tacoma Intl
Fri 4/12
10:48-09:55
2 stops39h 07m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Sun 25/10
17:20-15:32
2 stops53h 12m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Sun 8/11
17:20-23:07
2 stops37h 47m
Seattle/Tacoma Intl
Sun 15/11
19:05-16:20
1 stop37h 15m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Mon 1/2
10:55-22:45
2 stops43h 50m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Mon 15/2
10:55-22:45
2 stops43h 50m
Seattle/Tacoma Intl
Mon 22/2
11:00-09:55
2 stops38h 55m
LondonSeattle
STN London Stansted - SEA Seattle/Tacoma Intl
STNSEA
London Stansted
Sat 30/1
10:55-22:45
2 stops43h 50m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
Best time to book a flight from Stansted to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Stansted with our price prediction graph.
Related info for your journey
Find useful and relevant information for your journey from Stansted to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsBrowse 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 Stansted to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to Washington
Book a non-stop flight to one of these other cities located in Washington.
Search flights from Stansted to Seattle by cabin class
Find flights from Stansted to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Stansted and Seattle flights
Browse other Stansted and Seattle flight options. Last updated on 12 October 2026.
Other flights from Stansted
Browse through other flights departing from Stansted. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Stansted to Seattle?
Cheapflights helps you search for flights from Stansted to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Stansted to Seattle?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Stansted.
Can Cheapflights find flights from Stansted to Seattle with no change fees?
Certainly. Search results for flights to Seattle from Stansted shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Stansted to Seattle become cheaper?
Yes, Cheapflights offers price alerts on Stansted to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.