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$393+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
KIX — SEA
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
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 February 10, 2026.

This Air Canada deal was found by Cheapflights users on 2/7. 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 stop12h 22m
Air Canada
Wed 9/1610:30 am
SEA
-
KIX
1 stop13h 55m
Air Canada
Deal found 2/7$715
This Air Canada deal was found by Cheapflights users on 2/9. 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 7/206:00 pm
KIX
-
SEA
1 stop16h 32m
Air Canada
Wed 8/129:55 am
SEA
-
KIX
1 stop14h 30m
Air Canada
Deal found 2/9$738
This Gotogate deal was found by Cheapflights users on 2/9. 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.
Tue 9/16:00 pm
KIX
-
SEA
1 stop20h 22m
Air Canada
Mon 9/215:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 2/9$754
This Gotogate deal was found by Cheapflights users on 2/9. 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.
Wed 6/179:00 pm
KIX
-
SEA
2 stops41h 22m
Multiple Airlines
Sun 6/215:40 am
SEA
-
KIX
1 stop18h 45m
Multiple Airlines
Deal found 2/9$765
This Flightnetwork deal was found by Cheapflights users on 2/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:25 pm
KIX
-
SEA
1 stop12h 36m
Air Canada
Mon 3/305:40 am
SEA
-
KIX
1 stop18h 45m
Air Canada
Deal found 2/9$766
This Gotogate deal was found by Cheapflights users on 2/9. 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 7/206:00 pm
KIX
-
SEA
1 stop16h 32m
Multiple Airlines
Wed 8/129:55 am
SEA
-
KIX
2 stops19h 05m
Multiple Airlines
Deal found 2/9$785
This EVA Air deal was found by Cheapflights users on 2/8. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:10 am
KIX
-
SEA
1 stop23h 50m
EVA Air
Sun 9/201:30 am
SEA
-
KIX
1 stop16h 40m
EVA Air
Deal found 2/8$793
This Flightnetwork deal was found by Cheapflights users on 2/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:25 pm
KIX
-
SEA
1 stop20h 32m
Multiple Airlines
Mon 3/305:40 am
SEA
-
KIX
2 stops40h 05m
Multiple Airlines
Deal found 2/9$800
This oojo deal was found by Cheapflights users on 2/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:00 pm
KIX
-
SEA
1 stop21h 45m
China Airlines
Sun 8/161:55 am
SEA
-
KIX
1 stop18h 55m
China Airlines
Deal found 2/7$804
This EVA Air deal was found by Cheapflights users on 2/8. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:10 pm
KIX
-
SEA
1 stop22h 10m
EVA Air
Mon 10/261:10 am
SEA
-
KIX
1 stop16h 45m
EVA Air
Deal found 2/8$813

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 February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$715
(Air Canada)

One-way from

$393
(SmartFares)

Popular in

September

Cheapest in

May

Average price

$974
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. 11% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 10, 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

Tue 6/23

6:00 pm-2:22 pm

1 stop12h 22m

Seattle/Tacoma Intl

Wed 9/16

10:30 am-4:25 pm

1 stop13h 55m

$715

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/17

9:00 pm-10:22 pm

2 stops41h 22m

Seattle/Tacoma Intl

Sun 6/21

5:40 am-4:25 pm

1 stop18h 45m

$765

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 3/2

7:25 pm-3:01 pm

1 stop12h 36m

Seattle/Tacoma Intl

Mon 3/30

5:40 am-4:25 pm

1 stop18h 45m

$766

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 7/20

6:00 pm-6:32 pm

1 stop16h 32m

Seattle/Tacoma Intl

Wed 8/12

9:55 am-9:00 pm

2 stops19h 05m

$785

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 8/3

2:00 pm-7:45 pm

1 stop21h 45m

Seattle/Tacoma Intl

Sun 8/16

1:55 am-12:50 pm

1 stop18h 55m

$804

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/17

3:15 pm-8:05 pm

1 stop20h 50m

Seattle/Tacoma Intl

Sun 6/21

11:10 pm-7:35 pm

1 stop28h 25m

$824

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/23

6:00 pm-10:22 pm

1 stop20h 22m

Seattle/Tacoma Intl

Wed 9/16

5:40 am-9:00 pm

2 stops23h 20m

$830

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 5/8

2:20 pm-9:00 am

1 stop34h 40m

$393

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 3/9

8:25 pm-5:09 pm

2 stops36h 44m

$459

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 3/10

8:25 pm-5:09 pm

2 stops36h 44m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 19 results
1
2

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 February.
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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated February 10, 2026.
Get a feel of what it's like to fly with Air Canada from Osaka Kansai Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,700 reviews

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.3

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,700 reviews
Air Canada
7.1
Good
10,700 reviews

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.3

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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. 1 airline 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 can get you from Osaka Kansai Intl Airport to Seattle in just under 12h 22m. Your travel time can differ by up to . The distance between Osaka Kansai Intl Airport and Seattle is about 5024 mi.

  • What is the cheapest airline to fly from Osaka Kansai Intl Airport to Seattle round-trip?

    Flying on Air Canada is currently your cheapest option to Seattle, with prices starting at $794.

  • 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
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kansai Intl to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Kansai Intl to Seattle

Discover the top airline that operate flights from Kansai Intl to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$794Average$1,711FlexibilityNo cancel feeOn-time67%

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