HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$521+ Cheap flights from Luton (LTN) to Seattle (SEA)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Luton to Seattle 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 Luton to Seattle

Cheapest flights from Luton to Seattle
Explore the most affordable flight options available from Luton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This Booking.com deal was found by Cheapflights users on 12/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:05 amLTN - SEA
1 stop18h 15mMultiple Airlines
Sun 1/48:05 pmSEA - LTN
1 stop17h 55mMultiple Airlines
Deal found 12/25$1,133
This Mytrip deal was found by Cheapflights users on 12/24. 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 12/297:00 amLTN - SEA
2 stops16h 40mMultiple Airlines
Sat 1/35:40 pmSEA - LTN
2 stops18h 45mMultiple Airlines
Deal found 12/24$1,493
This Booking.com deal was found by Cheapflights users on 12/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:25 amLTN - SEA
1 stop15h 55mMultiple Airlines
Fri 1/28:05 pmSEA - LTN
1 stop12h 10mMultiple Airlines
Deal found 12/24$1,639
This Booking.com deal was found by Cheapflights users on 12/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:25 amLTN - SEA
1 stop15h 55mMultiple Airlines
Sat 1/102:35 pmSEA - LTN
2 stops18h 25mMultiple Airlines
Deal found 12/24$1,777

Find flight deals from Luton to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) to Seattle (SEA). 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 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$839
(Booking.com)

One-way from

$521
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$853
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
Search Deals
From London Luton to Seattle/Tacoma Intl
Search Deals
One-way flight from London Luton to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 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 Luton to Seattle 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 26, 2025.
Use the filters below to find and compare flights from London Luton Airport to Seattle that are best for you.

Fly from

Luton

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 1/16

7:00 am-10:22 am

3 stops35h 22m

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-4:10 pm

2 stops17h 35m

$868

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 1/15

7:15 am-10:22 am

3 stops35h 07m

Seattle/Tacoma Intl

Fri 1/16

3:10 pm-8:10 pm

2 stops21h 00m

$885

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 1/22

6:00 am-5:00 pm

1 stop19h 00m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-8:00 pm

2 stops21h 25m

$898

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 1/21

8:00 am-5:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-8:00 pm

2 stops21h 25m

$925

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 1/14

8:00 am-5:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 7/7

5:40 pm-7:35 am

2 stops29h 55m

$927

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 1/15

6:00 am-5:00 pm

1 stop19h 00m

Seattle/Tacoma Intl

Tue 7/7

5:40 pm-7:35 am

2 stops29h 55m

$980

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 6/3

6:15 am-11:45 am

1 stop13h 30m

Seattle/Tacoma Intl

Wed 7/15

7:00 pm-3:45 pm

2 stops12h 45m

$1,023

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 6/4

7:00 am-3:40 pm

2 stops16h 40m

Seattle/Tacoma Intl

Thu 6/18

3:40 pm-6:15 pm

2 stops18h 35m

$1,025

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 1/14

8:00 am-5:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 7/8

6:45 pm-10:55 pm

2 stops20h 10m

$1,043

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 6/1

9:50 pm-3:40 pm

2 stops25h 50m

Seattle/Tacoma Intl

Mon 6/15

7:05 am-3:45 pm

3 stops24h 40m

$1,069

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Luton to Seattle

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

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from London Luton to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from London Luton; the airport handles an average of 0 inbound flights from London Luton per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Seattle airport from London Luton. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

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

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

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

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

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

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

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis

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.