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$364+ Cheap flights from Seattle (SEA) to Luton (LTN)

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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Seattle to Luton

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Luton (LTN). 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 October 27, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$557
(Mytrip)

One-way from

$364
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$663
Provider with most accurate pricing for Seattle/Tacoma Intl-London Luton flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London Luton flights.
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From Seattle/Tacoma Intl to London Luton
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One-way flight from Seattle/Tacoma Intl to London Luton
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Highest demand for flights based on searches. 15% potential increase in price ($134 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Luton

Cheapest flights from Seattle to Luton
Explore the most affordable flight options available from Seattle to Luton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Mytrip deal was found by Cheapflights users on 10/26. 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 12/108:05 pmSEA - LTN
1 stop13h 00mMultiple Airlines
Wed 12/176:50 amLTN - SEA
1 stop19h 30mMultiple Airlines
Deal found 10/26$557
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Sun 12/78:10 amSEA - LTN
2 stops19h 35mMultiple Airlines
Sat 12/139:00 pmLTN - SEA
2 stops33h 16mMultiple Airlines
Deal found 10/27$606
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/122:35 pmSEA - LTN
2 stops16h 25mMultiple Airlines
Wed 11/267:00 amLTN - SEA
2 stops18h 00mMultiple Airlines
Deal found 10/26$607
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Fri 10/314:10 pmSEA - LTN
2 stops21h 00mMultiple Airlines
Fri 11/75:50 amLTN - SEA
3 stops21h 26mMultiple Airlines
Deal found 10/25$623
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/172:35 pmSEA - LTN
2 stops23h 15mMultiple Airlines
Mon 11/247:20 amLTN - SEA
2 stops17h 40mMultiple Airlines
Deal found 10/27$625
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/112:35 pmSEA - LTN
2 stops19h 15mMultiple Airlines
Tue 11/257:10 amLTN - SEA
2 stops17h 50mMultiple Airlines
Deal found 10/27$628
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/12:35 pmSEA - LTN
2 stops15h 35mMultiple Airlines
Sun 12/148:45 amLTN - SEA
2 stops16h 15mMultiple Airlines
Deal found 10/27$632
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/1810:05 amSEA - LTN
3 stops26h 05mMultiple Airlines
Thu 11/278:50 pmLTN - SEA
2 stops23h 20mMultiple Airlines
Deal found 10/27$634
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Sun 11/92:35 pmSEA - LTN
2 stops18h 10mMultiple Airlines
Fri 11/145:50 amLTN - SEA
2 stops19h 10mMultiple Airlines
Deal found 10/27$637

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Luton 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 October 27, 2025.
Use the filters below to find and compare flights from Seattle to London Luton Airport that are best for you.

Fly from

Seattle

Fly to

Luton

Route

Depart

Return

Price

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 2/4

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Tue 2/10

7:00 am-5:00 pm

1 stop18h 00m

$612

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 12/10

2:35 pm-5:05 pm

2 stops18h 30m

London Luton

Wed 12/17

6:50 am-5:00 pm

2 stops18h 10m

$613

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-9:55 pm

2 stops23h 20m

London Luton

Sun 2/1

7:00 am-5:00 pm

2 stops18h 00m

$629

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 12/7

2:35 pm-2:35 pm

2 stops16h 00m

London Luton

Sun 12/14

7:00 am-5:00 pm

2 stops18h 00m

$644

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 11/14

8:05 pm-8:10 pm

1 stop16h 05m

London Luton

Mon 11/24

8:50 am-6:20 pm

1 stop17h 30m

$644

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 11/14

8:05 pm-4:15 pm

1 stop12h 10m

London Luton

Sun 11/23

8:05 am-6:20 pm

1 stop18h 15m

$644

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 11/16

2:35 pm-2:35 pm

2 stops16h 00m

London Luton

Thu 11/20

7:15 am-5:00 pm

2 stops17h 45m

$648

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 12/5

2:35 pm-2:00 pm

2 stops15h 25m

London Luton

Tue 12/9

6:25 am-5:00 pm

2 stops18h 35m

$653

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 12/5

2:35 pm-9:55 pm

2 stops23h 20m

London Luton

Wed 12/10

8:15 am-5:00 pm

2 stops16h 45m

$661

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 11/30

2:35 pm-2:35 pm

2 stops16h 00m

London Luton

Mon 12/8

7:20 am-5:00 pm

2 stops17h 40m

$664

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 21 results
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2
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  • Most accurate provider: When it comes to deals on Seattle-London Luton Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-London Luton Airport flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Seattle-London Luton Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London Luton Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London Luton Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Luton

Have a flexible travel schedule? Discover the best time to fly to Luton from Seattle 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 Seattle to Luton. 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 from for flights from Seattle to London Luton?

    For a flight from Seattle to London Luton, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to London Luton per day. 0 airlines have flights to London Luton from Seattle/Tacoma Intl on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Luton 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 London Luton Airport?

Book flights to London Luton Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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