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$371+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
KIX — SEA
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 diciembre 12, 2025.

This oojo deal was found by Cheapflights users on 12/11. 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.
sáb. 12/206:10 pmKIX - SEA
1 stop17h 00mEVA Air
jue. 1/112:10 amSEA - KIX
1 stop16h 45mEVA Air
Deal found 12/11$823
This Asiana Airlines deal was found by Cheapflights users on 12/10. 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.
jue. 12/259:00 amKIX - SEA
1 stop21h 55mAsiana Airlines
lun. 12/2912:10 amSEA - KIX
1 stop15h 40mAsiana Airlines
Deal found 12/10$836
This Air Canada deal was found by Cheapflights users on 12/10. 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.
jue. 12/2510:50 amKIX - SEA
2 stops28h 56mMultiple Airlines
mar. 12/305:50 amSEA - KIX
2 stops21h 45mMultiple Airlines
Deal found 12/10$975
This Cathay Pacific deal was found by Cheapflights users on 12/11. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/254:55 pmKIX - SEA
2 stops33h 07mCathay Pacific
mar. 12/307:09 amSEA - KIX
2 stops30h 11mCathay Pacific
Deal found 12/11$1,188
This Ovago deal was found by Cheapflights users on 12/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/204:15 pmKIX - SEA
3 stops33h 47mCathay Pacific
vie. 1/23:49 pmSEA - KIX
2 stops27h 56mCathay Pacific
Deal found 12/10$1,298
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/204:15 pmKIX - SEA
3 stops33h 47mMultiple Airlines
jue. 1/112:10 amSEA - KIX
1 stop16h 45mMultiple Airlines
Deal found 12/10$1,333

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$684
(Gotogate)

One-way from

$371
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$1,047
Provider with most accurate pricing for Osaka Kansai Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Osaka Kansai Intl-Seattle/Tacoma Intl flights.
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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 ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 diciembre 12, 2025.
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

lun. 1/26

9:00 am-9:00 am

1 stop17h 00m

Seattle/Tacoma Intl

lun. 2/2

11:00 am-10:45 am

1 stop30h 45m

$684

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mar. 3/3

7:25 pm-7:16 pm

1 stop16h 51m

Seattle/Tacoma Intl

mié. 3/18

5:50 am-5:40 pm

1 stop19h 50m

$745

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 2/5

11:55 am-1:20 pm

1 stop18h 25m

Seattle/Tacoma Intl

jue. 2/19

11:25 am-8:45 pm

1 stop16h 20m

$772

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 1/15

2:00 pm-9:00 am

1 stop36h 00m

Seattle/Tacoma Intl

jue. 1/29

11:00 am-8:45 pm

1 stop16h 45m

$780

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

lun. 1/26

8:45 pm-5:24 am

1 stop25h 39m

Seattle/Tacoma Intl

lun. 2/2

8:15 pm-6:45 pm

2 stops29h 30m

$782

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mar. 3/3

8:25 pm-10:06 pm

2 stops42h 41m

Seattle/Tacoma Intl

mié. 3/18

5:50 am-5:40 pm

1 stop19h 50m

$790

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 2/5

7:50 am-2:31 pm

2 stops23h 41m

Seattle/Tacoma Intl

jue. 2/19

11:00 am-8:55 pm

1 stop16h 55m

$804

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jue. 1/22

7:25 pm-1:55 pm

1 stop35h 30m

Seattle/Tacoma Intl

sáb. 1/24

12:10 am-6:05 pm

1 stop24h 55m

$812

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sáb. 1/24

10:50 am-5:52 pm

2 stops24h 02m

Seattle/Tacoma Intl

sáb. 1/31

7:00 am-6:45 pm

1 stop18h 45m

$815

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

dom. 3/1

7:00 pm-6:10 pm

1 stop16h 10m

Seattle/Tacoma Intl

mar. 3/17

1:10 am-5:50 pm

1 stop24h 40m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 18 results
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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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka Kansai Intl Airport-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Osaka Kansai Intl Airport to Seattle

What is the cheapest time of day to fly from KIX to SEA?

Find hourly flight availability from Kansai Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 43% on flights from Osaka Kansai Intl Airport to Seattle by exploring options for tickets in the morning.

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?

    Korean Air, Air Canada, and Delta can get you from Osaka Kansai Intl Airport to Seattle in just under 16h 51m. Your travel time can differ by up to 1h 34m. 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 EVA Air, with whom users have recently found tickets for as low as $309. However, be on the lookout for offers from Korean Air and Air Canada, 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

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