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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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap 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 December 3, 2025.

This Mytrip deal was found by Cheapflights users on 12/1. 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 12/98:10 amSEA - LTN
2 stops17h 35mMultiple Airlines
Sat 12/139:00 pmLTN - SEA
2 stops33h 16mMultiple Airlines
Deal found 12/1$619
This Mytrip deal was found by Cheapflights users on 12/2. 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 12/312:35 pmSEA - LTN
2 stops16h 40mMultiple Airlines
Wed 1/146:30 amLTN - SEA
2 stops18h 30mMultiple Airlines
Deal found 12/2$670
This Mytrip deal was found by Cheapflights users on 12/2. 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 12/35:50 amSEA - LTN
3 stops29h 35mMultiple Airlines
Wed 12/108:50 pmLTN - SEA
2 stops23h 20mMultiple Airlines
Deal found 12/2$734
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/318:05 pmSEA - LTN
1 stop19h 00mMultiple Airlines
Wed 1/76:50 amLTN - SEA
2 stops34h 26mMultiple Airlines
Deal found 12/1$826
This Mytrip deal was found by Cheapflights users on 12/2. 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 12/92:00 pmSEA - LTN
2 stops24h 35mMultiple Airlines
Tue 12/165:45 pmLTN - SEA
2 stops27h 35mMultiple Airlines
Deal found 12/2$955
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/33:15 pmSEA - LTN
2 stops15h 45mMultiple Airlines
Tue 12/97:00 amLTN - SEA
1 stop18h 00mMultiple Airlines
Deal found 12/2$971

Find 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 December 3, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$585
(Kiwi.com)

One-way from

$347
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$968
Provider with most accurate pricing for Seattle/Tacoma Intl-London Luton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London Luton flights.
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From Seattle/Tacoma Intl to London Luton
Search Deals
One-way flight from Seattle/Tacoma Intl to London Luton
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 3, 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 1/14

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Wed 1/21

8:00 am-5:00 pm

1 stop17h 00m

$585

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-2:50 pm

1 stop16h 15m

London Luton

Wed 3/11

8:00 am-6:00 pm

1 stop17h 00m

$589

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 2/25

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Sun 3/8

6:00 am-5:00 pm

1 stop19h 00m

$593

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 2/25

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Tue 3/10

7:00 am-6:00 pm

1 stop18h 00m

$594

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 1/13

2:35 pm-2:50 pm

1 stop16h 15m

London Luton

Tue 1/20

7:00 am-5:00 pm

1 stop18h 00m

$599

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Wed 2/4

8:00 am-5:00 pm

1 stop17h 00m

$600

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

$601

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 1/14

2:35 pm-12:55 pm

1 stop14h 20m

London Luton

Tue 1/20

7:00 am-5:00 pm

1 stop18h 00m

$601

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 2/24

2:35 pm-2:50 pm

1 stop16h 15m

London Luton

Tue 3/10

7:00 am-6:00 pm

1 stop18h 00m

$603

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 2/24

2:35 pm-2:50 pm

1 stop16h 15m

London Luton

Mon 3/9

8:00 am-6:00 pm

1 stop17h 00m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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
Ilford
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Kingston upon Thames
Wembley
Folkestone
Eastbourne
Sutton

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