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Luton

$347+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 November 20, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$582
(Mytrip)

One-way from

$347
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$661
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 ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 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 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 November 20, 2025.

This Mytrip deal was found by Cheapflights users on 11/18. 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 12/33:10 pmSEA - LTN
2 stops23h 55mMultiple Airlines
Wed 12/105:10 pmLTN - SEA
2 stops27h 00mMultiple Airlines
Deal found 11/18$603
This Mytrip deal was found by Cheapflights users on 11/18. 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
Tue 12/97:10 amLTN - SEA
2 stops17h 50mMultiple Airlines
Deal found 11/18$635
This Mytrip deal was found by Cheapflights users on 11/19. 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.
Thu 12/42:35 pmSEA - LTN
2 stops16h 15mMultiple Airlines
Tue 12/97:10 amLTN - SEA
2 stops17h 50mMultiple Airlines
Deal found 11/19$641
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/22:35 pmSEA - LTN
2 stops21h 30mMultiple Airlines
Wed 12/106:50 amLTN - SEA
2 stops18h 10mMultiple Airlines
Deal found 11/20$645
This Mytrip deal was found by Cheapflights users on 11/18. 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 12/52:35 pmSEA - LTN
2 stops15h 25mMultiple Airlines
Tue 12/96:25 amLTN - SEA
2 stops18h 35mMultiple Airlines
Deal found 11/18$671
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/28:10 amSEA - LTN
2 stops17h 35mMultiple Airlines
Mon 12/87:05 pmLTN - SEA
2 stops25h 05mMultiple Airlines
Deal found 11/19$687
This Mytrip deal was found by Cheapflights users on 11/18. 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 12/88:10 amSEA - LTN
3 stops29h 35mMultiple Airlines
Mon 12/152:30 pmLTN - SEA
2 stops29h 40mMultiple Airlines
Deal found 11/18$725
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Thu 12/42:00 pmSEA - LTN
2 stops22h 30mMultiple Airlines
Fri 12/125:50 amLTN - SEA
2 stops24h 26mMultiple Airlines
Deal found 11/18$746
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/37:55 amSEA - LTN
2 stops16h 40mMultiple Airlines
Fri 12/125:50 amLTN - SEA
1 stop20h 30mMultiple Airlines
Deal found 11/18$762
This Mytrip deal was found by Cheapflights users on 11/17. 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 12/128:05 pmSEA - LTN
1 stop12h 10mMultiple Airlines
Fri 12/195:50 amLTN - SEA
1 stop20h 30mMultiple Airlines
Deal found 11/17$789

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 November 20, 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

Fri 1/9

2:00 pm-11:00 pm

2 stops25h 00m

London Luton

Sat 1/17

4:05 pm-7:16 pm

3 stops35h 11m

$591

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 2/25

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Wed 3/11

8:00 am-6:00 pm

1 stop17h 00m

$595

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 12/3

3:10 pm-11:05 pm

2 stops23h 55m

London Luton

Wed 12/10

5:10 pm-12:10 pm

2 stops27h 00m

$603

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 1/12

2:35 pm-9:50 pm

2 stops23h 15m

London Luton

Wed 1/28

7:00 am-5:00 pm

2 stops18h 00m

$621

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-9:55 pm

2 stops23h 20m

London Luton

Fri 1/30

7:00 am-5:00 pm

2 stops18h 00m

$629

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 3/5

2:35 pm-2:50 pm

2 stops16h 15m

London Luton

Mon 3/9

7:20 am-6:00 pm

2 stops17h 40m

$633

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 2/10

10:05 am-3:15 pm

3 stops21h 10m

London Luton

Wed 2/18

4:45 pm-7:16 pm

3 stops34h 31m

$639

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 1/5

2:35 pm-9:50 pm

2 stops23h 15m

London Luton

Sun 1/18

8:25 am-5:00 pm

2 stops16h 35m

$640

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 12/4

2:35 pm-2:50 pm

2 stops16h 15m

London Luton

Tue 12/9

7:10 am-5:00 pm

2 stops17h 50m

$641

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 1/18

11:55 am-9:55 pm

3 stops26h 00m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 20 results
1
2
  • 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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