HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luton

$344+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
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 December 5, 2025.

This Mytrip deal was found by Cheapflights users on 12/3. 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 12/148:05 pmSEA - LTN
1 stop12h 40mMultiple Airlines
Wed 12/176:50 amLTN - SEA
1 stop19h 30mMultiple Airlines
Deal found 12/3$742
This Mytrip deal was found by Cheapflights users on 12/3. 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 stop19h 00mMultiple Airlines
Wed 12/247:00 amLTN - SEA
2 stops16h 40mMultiple Airlines
Deal found 12/3$978
This Mytrip deal was found by Cheapflights users on 12/3. 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 12/33:15 pmSEA - LTN
2 stops15h 45mMultiple Airlines
Wed 12/108:00 amLTN - SEA
1 stop17h 00mMultiple Airlines
Deal found 12/3$994
This Mytrip deal was found by Cheapflights users on 12/4. 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
Sun 12/145:20 pmLTN - SEA
2 stops26h 50mMultiple Airlines
Deal found 12/4$998
This Mytrip deal was found by Cheapflights users on 12/3. 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 12/45:40 pmSEA - LTN
2 stops15h 35mMultiple Airlines
Thu 12/117:15 amLTN - SEA
2 stops16h 25mMultiple Airlines
Deal found 12/3$1,001
This Mytrip deal was found by Cheapflights users on 12/5. 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.
Sat 12/68:10 amSEA - LTN
2 stops23h 55mMultiple Airlines
Sat 12/139:00 pmLTN - SEA
3 stops30h 16mMultiple Airlines
Deal found 12/5$1,012
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 12/168:10 amSEA - LTN
2 stops27h 55mMultiple Airlines
Wed 12/247:00 amLTN - SEA
2 stops16h 40mMultiple Airlines
Deal found 12/2$1,033
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.
Fri 12/268:10 amSEA - LTN
2 stops19h 45mMultiple Airlines
Fri 1/98:55 pmLTN - SEA
3 stops33h 11mMultiple Airlines
Deal found 12/2$1,058
This Mytrip deal was found by Cheapflights users on 12/4. 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 12/82:00 pmSEA - LTN
2 stops25h 00mMultiple Airlines
Wed 12/108:00 amLTN - SEA
1 stop17h 00mMultiple Airlines
Deal found 12/4$1,076
This Mytrip deal was found by Cheapflights users on 12/3. 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 12/53:10 pmSEA - LTN
2 stops21h 00mMultiple Airlines
Sun 12/78:50 pmLTN - SEA
2 stops26h 50mMultiple Airlines
Deal found 12/3$1,134
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Fri 12/128:05 pmSEA - LTN
1 stop16h 05mMultiple Airlines
Fri 12/195:50 amLTN - SEA
1 stop20h 30mMultiple Airlines
Deal found 12/3$1,159

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 5, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$593
(Kiwi.com)

One-way from

$344
(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.
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. 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
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 December 5, 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 2/25

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

Sun 3/15

3:35 pm-2:50 pm

1 stop16h 15m

London Luton

Thu 3/19

6:00 am-6:00 pm

1 stop19h 00m

$617

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 1/15

2:00 pm-8:55 pm

2 stops22h 55m

London Luton

Thu 1/22

9:40 pm-1:20 pm

2 stops23h 40m

$620

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 2/24

2:35 pm-2:50 pm

1 stop16h 15m

London Luton

Sun 3/8

6:00 am-5:00 pm

1 stop19h 00m

$628

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 3/1

2:35 pm-10:00 pm

2 stops23h 25m

London Luton

Wed 3/11

6:50 am-6:00 pm

2 stops18h 10m

$628

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

$629

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sat 2/14

8:10 am-8:30 pm

3 stops28h 20m

London Luton

Sun 2/22

4:20 pm-12:10 pm

2 stops27h 50m

$631

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-9:50 pm

2 stops23h 15m

London Luton

Mon 1/26

7:20 am-5:00 pm

2 stops17h 40m

$634

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-2:00 pm

1 stop15h 25m

London Luton

Tue 2/3

7:00 am-5:00 pm

1 stop18h 00m

$634

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 3/18

4:10 pm-9:45 pm

2 stops22h 35m

London Luton

Thu 3/26

5:35 pm-1:10 pm

2 stops26h 35m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

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

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.
Site
Cookie settings©2025 Cheapflights