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$423+ Cheap flights from Luton (LTN) 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap flight deals from Luton to Seattle

Cheapest flights from Luton to Seattle
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 February 12, 2026.

This Mytrip deal was found by Cheapflights users on 2/9. 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.
Mon 3/96:00 am
LTN
-
SEA
2 stops19h 00m
Multiple Airlines
Tue 3/243:35 pm
SEA
-
LTN
2 stops21h 30m
Multiple Airlines
Deal found 2/9$572
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/18:05 am
LTN
-
SEA
1 stop18h 15m
Multiple Airlines
Sun 3/89:05 pm
SEA
-
LTN
1 stop12h 40m
Multiple Airlines
Deal found 2/10$620
This Mytrip deal was found by Cheapflights users on 2/11. 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.
Wed 3/116:50 am
LTN
-
SEA
1 stop19h 30m
Multiple Airlines
Wed 3/259:05 pm
SEA
-
LTN
1 stop19h 00m
Multiple Airlines
Deal found 2/11$631
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/275:50 am
LTN
-
SEA
1 stop20h 30m
Multiple Airlines
Sun 3/159:05 pm
SEA
-
LTN
1 stop17h 55m
Multiple Airlines
Deal found 2/10$656
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/176:20 am
LTN
-
SEA
1 stop18h 50m
Multiple Airlines
Wed 4/226:55 pm
SEA
-
LTN
1 stop18h 20m
Multiple Airlines
Deal found 2/10$703
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 9/39:25 am
LTN
-
SEA
1 stop15h 45m
Multiple Airlines
Mon 9/77:10 pm
SEA
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 2/11$711
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 5/59:40 am
LTN
-
SEA
2 stops32h 00m
Multiple Airlines
Thu 5/147:10 pm
SEA
-
LTN
1 stop13h 35m
Multiple Airlines
Deal found 2/12$767

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$572
(Mytrip)

One-way from

$423
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$635
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
Search Deals
From London Luton to Seattle/Tacoma Intl
Search Deals
One-way flight from London Luton to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from London Luton Airport to Seattle that are best for you.

Fly from

Luton

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 3/9

6:00 am-6:00 pm

2 stops19h 00m

Seattle/Tacoma Intl

Tue 3/24

3:35 pm-8:05 pm

2 stops21h 30m

$574

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 3/1

8:05 am-6:20 pm

1 stop18h 15m

Seattle/Tacoma Intl

Sun 3/8

9:05 pm-4:45 pm

1 stop12h 40m

$620

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 3/11

6:50 am-7:20 pm

1 stop19h 30m

Seattle/Tacoma Intl

Wed 3/25

9:05 pm-11:05 pm

1 stop19h 00m

$631

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 4/17

6:20 am-5:10 pm

1 stop18h 50m

Seattle/Tacoma Intl

Wed 4/22

6:55 pm-9:15 pm

1 stop18h 20m

$703

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 3/22

7:00 am-10:25 am

3 stops34h 25m

Seattle/Tacoma Intl

Mon 3/30

7:00 pm-5:10 pm

2 stops14h 10m

$847

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 5/13

6:15 am-7:19 pm

2 stops21h 04m

Seattle/Tacoma Intl

Sun 5/24

7:10 pm-9:40 pm

1 stop18h 30m

$895

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 2/24

7:05 am-5:00 pm

2 stops17h 55m

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-2:50 pm

2 stops16h 15m

$902

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 5/15

9:20 pm-4:00 pm

3 stops50h 40m

$423

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 6/15

8:15 am-6:45 pm

3 stops42h 30m

$438

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 6/9

9:40 am-6:45 pm

3 stops41h 05m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 18 results
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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.
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.

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.

  • What airport do you fly into for flights to Seattle from London Luton?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from London Luton to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from London Luton; the airport handles an average of 0 inbound flights from London Luton per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Seattle airport from London Luton. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • Can I find deals for flights from Luton to Seattle that include hotel bookings?

    Yes. In addition to deals on Luton to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luton to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Seattle.

  • Can I find deals for business class flights from Luton to Seattle?

    Yes. Cheapflights offers flight deals from Luton 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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