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$380+ Cheap flights from Kansai Intl (KIX) 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
KIX — SEA
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Kansai Intl to Seattle

Cheapest flights from Kansai Intl to Seattle
Explore the most affordable flight options available from Kansai Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This flugladen.de deal was found by Cheapflights users on 1/26. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:25 pm
KIX
-
SEA
1 stop31h 10m
Air Canada
Sat 3/213:40 pm
SEA
-
KIX
1 stop34h 00m
Air Canada
Deal found 1/26$653
This Air Canada deal was found by Cheapflights users on 1/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:00 pm
KIX
-
SEA
1 stop20h 22m
Air Canada
Mon 8/175:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 1/26$655
This Asiana Airlines deal was found by Cheapflights users on 1/26. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:25 pm
KIX
-
SEA
1 stop35h 30m
Asiana Airlines
Fri 5/2212:55 am
SEA
-
KIX
1 stop16h 45m
Asiana Airlines
Deal found 1/26$689
This Asiana Airlines deal was found by Cheapflights users on 1/25. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:00 am
KIX
-
SEA
1 stop21h 55m
Asiana Airlines
Mon 3/912:10 am
SEA
-
KIX
1 stop16h 40m
Asiana Airlines
Deal found 1/25$702
This Gotogate deal was found by Cheapflights users on 1/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:05 pm
KIX
-
SEA
1 stop12h 11m
Air Canada
Fri 10/235:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 1/26$703
This Air Canada deal was found by Cheapflights users on 1/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 pm
KIX
-
SEA
1 stop16h 32m
Air Canada
Mon 9/2110:00 am
SEA
-
KIX
1 stop14h 25m
Air Canada
Deal found 1/26$708
This Air Canada deal was found by Cheapflights users on 1/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:05 pm
KIX
-
SEA
1 stop20h 11m
Air Canada
Sat 9/267:45 pm
SEA
-
KIX
1 stop28h 40m
Air Canada
Deal found 1/26$720
This Air Canada deal was found by Cheapflights users on 1/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:00 pm
KIX
-
SEA
1 stop20h 22m
Air Canada
Wed 9/165:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 1/26$732
This Gotogate deal was found by Cheapflights users on 1/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:00 am
KIX
-
SEA
2 stops24h 01m
Multiple Airlines
Sat 3/213:40 pm
SEA
-
KIX
1 stop34h 00m
Multiple Airlines
Deal found 1/26$735
This Booking.com deal was found by Cheapflights users on 1/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:40 am
KIX
-
SEA
2 stops41h 35m
Multiple Airlines
Sat 5/233:00 pm
SEA
-
KIX
1 stop33h 25m
Multiple Airlines
Deal found 1/26$737

Find flight deals from Kansai Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kansai Intl (KIX) 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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$653
(flugladen.de)

One-way from

$380
(SmartFares)

Popular in

June

Cheapest in

February
Provider with most accurate pricing for Osaka Kansai Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Osaka Kansai Intl-Seattle/Tacoma Intl flights.
Search Deals
From Osaka Kansai Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Osaka Kansai Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansai Intl 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 January 28, 2026.
Use the filters below to find and compare flights from Osaka Kansai Intl Airport to Seattle that are best for you.

Fly from

Kansai Intl

Fly to

Seattle

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 3/5

7:25 pm-9:35 am

1 stop31h 10m

Seattle/Tacoma Intl

Sat 3/21

3:40 pm-5:40 pm

1 stop34h 00m

$653

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/20

7:25 pm-2:55 pm

1 stop35h 30m

Seattle/Tacoma Intl

Fri 5/22

12:55 am-9:40 am

1 stop16h 45m

$689

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 3/6

9:00 am-1:55 pm

1 stop21h 55m

Seattle/Tacoma Intl

Mon 3/9

12:10 am-8:50 am

1 stop16h 40m

$702

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 3/5

8:00 am-3:01 pm

2 stops24h 01m

Seattle/Tacoma Intl

Sat 3/21

3:40 pm-5:40 pm

1 stop34h 00m

$735

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/20

7:40 am-9:15 am

2 stops41h 35m

Seattle/Tacoma Intl

Sat 5/23

3:00 pm-4:25 pm

1 stop33h 25m

$737

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 3/12

6:10 pm-7:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Thu 3/19

11:50 pm-9:55 am

1 stop18h 05m

$876

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/23

7:25 pm-10:20 am

1 stop30h 55m

Seattle/Tacoma Intl

Wed 9/16

11:45 am-2:55 pm

2 stops35h 10m

$894

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/20

5:35 pm-7:09 am

2 stops29h 34m

Seattle/Tacoma Intl

Sat 5/23

11:20 am-2:55 pm

3 stops35h 35m

$899

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 3/12

10:00 am-11:07 pm

2 stops29h 07m

Seattle/Tacoma Intl

Thu 3/19

6:25 am-6:20 am

2 stops31h 55m

$1,010

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 4/20

2:20 pm-9:00 am

1 stop34h 40m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 19 results
1
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Compare providers for flights from Kansai Intl to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kansai Intl to Seattle in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Osaka Kansai Intl Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka Kansai Intl Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka Kansai Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Osaka Kansai Intl Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Osaka Kansai Intl Airport-Seattle 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 Kansai Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kansai Intl 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 Kansai Intl 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 Osaka Kansai Intl?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Osaka Kansai Intl to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Osaka Kansai Intl on a regular basis. Booking flights from Osaka Kansai Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Osaka Kansai Intl per day.

  • How long is the flight from Osaka Kansai Intl Airport to Seattle?

    Air Canada and Asiana Airlines can get you from Osaka Kansai Intl Airport to Seattle in just under 31h 10m. Your travel time can differ by up to 4h 20m. The distance between Osaka Kansai Intl Airport and Seattle is about 5024 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Osaka Kansai Intl Airport to Seattle one-way?

    The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $420. However, be on the lookout for offers from Air Canada and China Airlines, as they are both options that can get you from Osaka Kansai Intl Airport to Seattle for a low price.

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

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

  • How can I find direct flights from Kansai Intl to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Kansai Intl 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
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Olympia
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Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
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Federal Way
Chehalis

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