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$551+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap 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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$730
(Mytrip)

One-way from

$551
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$716
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
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From London Luton to Seattle/Tacoma Intl
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One-way flight from London Luton to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 12% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/25. 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.
Tue 12/235:10 pmLTN - SEA
2 stops30h 30mMultiple Airlines
Tue 12/305:40 pmSEA - LTN
2 stops17h 00mMultiple Airlines
Deal found 11/25$880
This Mytrip deal was found by Cheapflights users on 11/25. 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 11/268:50 pmLTN - SEA
2 stops26h 50mMultiple Airlines
Wed 12/102:35 pmSEA - LTN
2 stops23h 20mMultiple Airlines
Deal found 11/25$912
This Mytrip deal was found by Cheapflights users on 11/26. 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 11/268:50 pmLTN - SEA
2 stops26h 50mMultiple Airlines
Wed 12/312:35 pmSEA - LTN
2 stops23h 20mMultiple Airlines
Deal found 11/26$939
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Tue 12/97:00 amLTN - SEA
1 stop18h 00mMultiple Airlines
Thu 12/115:50 amSEA - LTN
3 stops24h 10mMultiple Airlines
Deal found 11/25$1,001
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Wed 12/108:00 amLTN - SEA
1 stop17h 00mMultiple Airlines
Mon 1/52:35 pmSEA - LTN
2 stops17h 35mMultiple Airlines
Deal found 11/24$1,002
This Mytrip deal was found by Cheapflights users on 11/23. 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 12/156:00 amLTN - SEA
2 stops19h 00mMultiple Airlines
Wed 12/312:35 pmSEA - LTN
2 stops23h 20mMultiple Airlines
Deal found 11/23$1,034
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Wed 12/108:00 amLTN - SEA
1 stop17h 00mMultiple Airlines
Mon 12/159:38 pmSEA - LTN
2 stops33h 12mMultiple Airlines
Deal found 11/24$1,066
This Mytrip deal was found by Cheapflights users on 11/24. 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 12/108:00 amLTN - SEA
1 stop17h 00mMultiple Airlines
Sun 1/48:05 pmSEA - LTN
1 stop12h 40mMultiple Airlines
Deal found 11/24$1,080

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 November 26, 2025.
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

Fri 1/23

5:50 pm-12:10 pm

2 stops26h 20m

Seattle/Tacoma Intl

Sat 2/7

2:00 pm-8:25 pm

2 stops22h 25m

$730

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 5/1

8:25 pm-8:28 pm

3 stops32h 03m

Seattle/Tacoma Intl

Thu 5/14

7:05 am-4:45 pm

3 stops25h 40m

$734

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 5/8

8:25 pm-8:28 pm

3 stops32h 03m

Seattle/Tacoma Intl

Sun 5/24

7:05 am-9:40 pm

3 stops30h 35m

$781

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 12/23

5:10 pm-3:40 pm

2 stops30h 30m

Seattle/Tacoma Intl

Tue 12/30

5:40 pm-6:40 pm

2 stops17h 00m

$880

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 12/26

10:25 am-6:20 pm

1 stop15h 55m

Seattle/Tacoma Intl

Fri 1/2

8:05 pm-8:10 pm

1 stop16h 05m

$939

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 1/8

9:00 am-5:00 pm

2 stops16h 00m

Seattle/Tacoma Intl

Thu 1/15

2:35 pm-8:30 pm

2 stops21h 55m

$958

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 1/13

7:00 am-5:00 pm

1 stop18h 00m

Seattle/Tacoma Intl

Thu 1/29

3:10 pm-5:15 pm

2 stops18h 05m

$962

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 2/3

7:00 am-5:00 pm

1 stop18h 00m

Seattle/Tacoma Intl

Sat 2/7

10:05 am-4:55 pm

3 stops22h 50m

$986

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 1/13

7:00 am-5:00 pm

1 stop18h 00m

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-6:20 pm

2 stops19h 45m

$992

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 12/9

7:00 am-5:00 pm

1 stop18h 00m

Seattle/Tacoma Intl

Thu 12/11

5:50 am-2:00 pm

3 stops24h 10m

$1,001

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 20 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
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Olympia
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Tukwila
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Puyallup
Kirkland
Kent
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