HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luton

$296+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Luton with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 27, 2026.

This Mytrip deal was found by Cheapflights users on 6/25. 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 10/96:00 pm
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Mon 10/199:50 pm
LTN
-
SEA
2 stops25h 50m
Multiple Airlines
Deal found 6/25$732
This Mytrip deal was found by Cheapflights users on 6/25. 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.
Thu 9/36:05 pm
SEA
-
LTN
2 stops18h 05m
Multiple Airlines
Tue 9/158:55 pm
LTN
-
SEA
2 stops26h 45m
Multiple Airlines
Deal found 6/25$738
This Mytrip deal was found by Cheapflights users on 6/26. 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.
Fri 10/166:00 pm
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Fri 10/239:50 pm
LTN
-
SEA
2 stops26h 10m
Multiple Airlines
Deal found 6/26$746
This Mytrip deal was found by Cheapflights users on 6/25. 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.
Sun 9/205:40 pm
SEA
-
LTN
2 stops19h 25m
Multiple Airlines
Sun 10/49:50 pm
LTN
-
SEA
2 stops26h 20m
Multiple Airlines
Deal found 6/25$754
This Mytrip deal was found by Cheapflights users on 6/25. 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 10/96:00 pm
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Sun 10/189:50 pm
LTN
-
SEA
2 stops26h 20m
Multiple Airlines
Deal found 6/25$757
This Mytrip deal was found by Cheapflights users on 6/26. 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.
Fri 9/43:55 pm
SEA
-
LTN
3 stops24h 35m
Multiple Airlines
Fri 9/1812:50 pm
LTN
-
SEA
3 stops32h 55m
Multiple Airlines
Deal found 6/26$763
This Mytrip deal was found by Cheapflights users on 6/26. 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 9/97:00 pm
SEA
-
LTN
2 stops19h 15m
Multiple Airlines
Thu 9/175:40 am
LTN
-
SEA
3 stops36h 00m
Multiple Airlines
Deal found 6/26$768
This Mytrip deal was found by Cheapflights users on 6/26. 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.
Fri 8/147:00 am
SEA
-
LTN
3 stops23h 00m
Multiple Airlines
Mon 9/76:05 pm
LTN
-
SEA
3 stops47h 35m
Multiple Airlines
Deal found 6/26$771
This Mytrip deal was found by Cheapflights users on 6/25. 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 9/233:40 pm
SEA
-
LTN
2 stops21h 35m
Multiple Airlines
Wed 10/76:15 am
LTN
-
SEA
2 stops19h 40m
Multiple Airlines
Deal found 6/25$772
This Mytrip deal was found by Cheapflights users on 6/25. 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.
Mon 8/247:00 pm
SEA
-
LTN
2 stops17h 55m
Multiple Airlines
Thu 9/39:40 pm
LTN
-
SEA
3 stops31h 20m
Multiple Airlines
Deal found 6/25$783
This Mytrip deal was found by Cheapflights users on 6/27. 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.
Wed 8/197:00 pm
SEA
-
LTN
2 stops19h 15m
Multiple Airlines
Tue 8/259:40 am
LTN
-
SEA
3 stops32h 00m
Multiple Airlines
Deal found 6/27$790
This Mytrip deal was found by Cheapflights users on 6/27. 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 8/167:00 am
SEA
-
LTN
3 stops20h 25m
Multiple Airlines
Tue 8/259:40 am
LTN
-
SEA
3 stops32h 00m
Multiple Airlines
Deal found 6/27$796

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 June 27, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$732
(Mytrip)

One-way from

$296
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,176
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.
Search Deals
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. 22% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 27, 2026.
Use the filters below to find and compare flights from Seattle to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 10/9

6:00 pm-9:05 pm

2 stops19h 05m

London Luton

Sun 10/18

9:50 pm-4:10 pm

2 stops26h 20m

$757

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 9/9

7:00 pm-10:15 pm

2 stops19h 15m

London Luton

Tue 9/15

5:40 am-9:40 am

3 stops36h 00m

$815

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 12/15

2:35 pm-3:05 pm

1 stop16h 30m

London Luton

Thu 12/31

6:00 am-5:00 pm

1 stop19h 00m

$894

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 8/13

7:10 pm-4:45 pm

1 stop13h 35m

London Luton

Wed 8/19

6:15 am-6:45 pm

3 stops44h 30m

$903

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 10/20

6:05 pm-10:25 pm

2 stops20h 20m

London Luton

Tue 10/27

7:00 am-4:55 pm

2 stops16h 55m

$903

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 7/24

3:40 pm-12:30 am

2 stops24h 50m

London Luton

Fri 7/31

6:20 am-9:00 pm

2 stops22h 40m

$948
Quickest round-trip

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 8/17

7:10 pm-3:45 pm

1 stop12h 35m

London Luton

Tue 8/25

9:40 am-5:10 pm

1 stop15h 30m

$976

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 7/26

3:40 pm-9:05 pm

2 stops21h 25m

London Luton

Thu 7/30

9:15 am-8:40 pm

2 stops19h 25m

$987

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 9/11

6:00 pm-9:05 pm

2 stops19h 05m

London Luton

Sun 9/20

9:50 pm-4:10 pm

2 stops26h 20m

$991

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 8/20

7:10 pm-4:45 pm

1 stop13h 35m

London Luton

Wed 8/26

6:15 am-5:10 pm

1 stop18h 55m

$1,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 19 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Seattle-London Luton Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-London Luton Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.