Sign in
Cheap flights from London Luton 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
9 Nov — 16 Nov1
Cheap flight deals from Luton to Seattle
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from Luton to SeattleExplore the most affordable flight options available from Luton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Explore the most affordable flight options available from Luton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Thu 29/1006:15 -
2 stops18h 45m
Thu 12/1114:35 -
2 stops24h 30m
Deal found 5/10£484
Thu 15/1009:25 -
2 stops16h 30m
Mon 19/1015:40 -
2 stops16h 05m
Deal found 6/10£517
Thu 12/1106:15 -
2 stops18h 45m
Thu 26/1114:35 -
2 stops24h 30m
Deal found 6/10£518
Tue 24/1107:45 -
2 stops17h 15m
Tue 1/1214:35 -
2 stops21h 25m
Deal found 10/10£558
Mon 23/1109:00 -
2 stops16h 00m
Sun 6/1214:35 -
2 stops19h 50m
Deal found 8/10£607
Mon 16/1107:20 -
2 stops16h 35m
Sun 29/1115:00 -
2 stops19h 00m
Deal found 6/10£632
Sun 1/1120:25 -
2 stops27h 30m
Thu 5/1117:50 -
2 stops20h 25m
Deal found 9/10£641
Tue 20/1007:00 -
2 stops21h 40m
Fri 23/1015:40 -
2 stops24h 10m
Deal found 6/10£650
Best flights from Luton to SeattleDiscover carefully curated flight deals from Luton to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Discover carefully curated flight deals from Luton to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Mon 16/1107:20 -
2 stops16h 35m
Sun 29/1115:00 -
2 stops22h 55m
Deal found 8/10£656
Thu 5/1107:00 -
2 stops16h 55m
Thu 12/1117:50 -
2 stops18h 05m
Deal found 6/10£663
Thu 19/1107:00 -
2 stops16h 55m
Thu 26/1117:50 -
2 stops18h 05m
Deal found 5/10£668
Mon 23/1108:00 -
1 stop17h 00m
Mon 30/1114:35 -
2 stops19h 25m
Deal found 9/10£704
Wed 11/1108:00 -
1 stop17h 00m
Tue 24/1114:35 -
2 stops21h 25m
Deal found 6/10£715
Wed 23/1208:00 -
1 stop17h 00m
Sun 3/114:35 -
1 stop16h 30m
Deal found 6/10£727
Mon 9/1108:00 -
1 stop17h 00m
Mon 23/1114:35 -
2 stops19h 25m
Deal found 9/10£734
Tue 22/1207:00 -
1 stop18h 00m
Sat 2/114:35 -
1 stop14h 30m
Deal found 7/10£765
Thu 26/1106:00 -
1 stop19h 00m
Thu 10/1214:35 -
2 stops17h 20m
Deal found 10/10£773
Thu 29/1007:00 -
2 stops18h 00m
Wed 11/1114:35 -
2 stops22h 40m
Deal found 8/10£788
Sat 31/1007:20 -
3 stops21h 37m
Sun 1/1114:35 -
2 stops20h 25m
Deal found 10/10£830
Last-minute flights from Luton to SeattleDiscover last-minute flight deals from Luton to Seattle. Data last updated 10 October 2026 and is based on user searches.
Discover last-minute flight deals from Luton to Seattle. Data last updated 10 October 2026 and is based on user searches.
Thu 15/1009:25 -
2 stops16h 30m
Mon 19/1015:40 -
2 stops16h 05m
Deal found 6/10£517
Tue 20/1007:00 -
2 stops21h 40m
Fri 23/1015:40 -
2 stops24h 10m
Deal found 6/10£650
Thu 29/1006:15 -
2 stops18h 45m
Thu 12/1114:35 -
2 stops24h 30m
Deal found 5/10£484
Sun 1/1120:25 -
2 stops27h 30m
Thu 5/1117:50 -
2 stops20h 25m
Deal found 9/10£641
Thu 12/1106:15 -
2 stops18h 45m
Thu 26/1114:35 -
2 stops24h 30m
Deal found 6/10£518
Mon 16/1107:20 -
2 stops16h 35m
Sun 29/1115:00 -
2 stops19h 00m
Deal found 6/10£632
Mon 23/1109:00 -
2 stops16h 00m
Sun 6/1214:35 -
2 stops19h 50m
Deal found 8/10£607
Tue 24/1107:45 -
2 stops17h 15m
Tue 1/1214:35 -
2 stops21h 25m
Deal found 10/10£558
One-way flights from Luton to SeattleSearch for one-way flight options from Luton to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Search for one-way flight options from Luton to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Mon 2/1107:15 -
3 stops43h 18m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/10£391
Tue 15/1217:45 -
2 stops51h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/10£391
Sat 5/1221:45 -
3 stops27h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/10£394
Wed 24/208:20 -
3 stops40h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/10£397
Thu 12/1114:50 -
2 stops34h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/10£400
Wed 23/1206:00 -
3 stops43h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/10£401
Fri 15/118:35 -
2 stops51h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/10£403
Fri 8/108:20 -
3 stops40h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/10£403
Sun 6/1207:00 -
2 stops34h 04m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/10£405
Wed 6/108:30 -
3 stops40h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/10£406
Sun 1/1114:35 -
3 stops59h 58m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/10£408
Find flight deals from Luton to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) 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 10 October 2026.
Cheapflights Fare Finder
Customise your flight search to find flights from Luton 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 7,457,451 searches. Data last updated 10 October 2026.
Use the filters below to find and compare flights from London Luton Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest return flight
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Wed 24/2
08:20-17:00
3 stops40h 40m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£397
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Tue 10/11
12:15-19:54
3 stops39h 39m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£431
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Tue 5/1
18:55-21:58
2 stops35h 03m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£439
Fastest return journey
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Mon 23/11
08:00-17:00
1 stop17h 00m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£461
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Thu 29/10
18:55-10:15
2 stops46h 20m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£469
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Thu 10/12
06:00-17:00
1 stop19h 00m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£470
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Wed 28/10
21:45-18:00
2 stops27h 15m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£476
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Thu 22/10
11:40-16:00
3 stops36h 20m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£483
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Sat 21/11
07:00-17:00
1 stop18h 00m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£491
LondonSeattle
LTN London Luton - SEA Seattle/Tacoma Intl
LTNSEA
London Luton
Mon 16/11
07:20-15:55
2 stops16h 35m
Seattle/Tacoma Intl
Sun 29/11
15:00-21:55
2 stops22h 55m
£656
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Luton to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Luton with our price prediction graph.
LTN-SEA
Estimated return 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.
Related info for your journey
Find useful and relevant information for your journey from Luton 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 locationsFederal Way
SeaTac
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
Complete your trip
Direct flights to Washington
Flights by cabin class
Other flight options
Other flights from Luton
Popular flights
Seattle flight routes
Alternative routes for Luton 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 Luton to Seattle by cabin class
Find flights from Luton to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Luton and Seattle flights
Browse other Luton and Seattle flight options. Last updated on 10 October 2026.
Other flights from Luton
Browse through other flights departing from Luton. Flights are based on user searches made on Cheapflights and were last updated on 10 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 10 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 Luton to Seattle?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Luton to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Luton 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 Luton.
Can Cheapflights find flights from Luton to Seattle with no change fees?
Yes! Cheapflights helps users easily find flights from Luton to Seattle with no change fees.
Can Cheapflights notify me if prices for flights from Luton to Seattle become cheaper?
Of course! You can now track prices for flights from Luton to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.