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$535+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
KIX — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$769
(Mytrip)

One-way from

$535
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,024
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
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One-way flight from Osaka Kansai Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 22% potential increase in price ($293 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/17. 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 5/2111:35 amKIX - SEA
2 stops18h 38mMultiple Airlines
Wed 5/2810:00 amSEA - KIX
2 stops18h 30mMultiple Airlines
Deal found 4/17$769
This Gotogate deal was found by Cheapflights users on 4/16. 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 6/256:30 pmKIX - SEA
1 stop17h 00mEVA Air
Thu 6/261:50 amSEA - KIX
1 stop16h 20mEVA Air
Deal found 4/16$908
This Gotogate deal was found by Cheapflights users on 4/17. 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.
Sun 5/117:05 pmKIX - SEA
1 stop16h 25mChina Airlines
Thu 5/151:10 amSEA - KIX
1 stop18h 50mChina Airlines
Deal found 4/17$913
This Gotogate deal was found by Cheapflights users on 4/17. 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 5/211:25 pmKIX - SEA
1 stop18h 45mSTARLUX Airlines
Tue 5/271:15 amSEA - KIX
1 stop19h 00mSTARLUX Airlines
Deal found 4/17$948
This Air Canada deal was found by Cheapflights users on 4/16. 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 6/146:05 pmKIX - SEA
1 stop16h 28mAir Canada
Sat 7/121:45 pmSEA - KIX
1 stop34h 40mAir Canada
Deal found 4/16$1,041
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:10 pmKIX - SEA
1 stop33h 35mAsiana Airlines
Mon 9/82:15 pmSEA - KIX
1 stop27h 25mAsiana Airlines
Deal found 4/17$1,114
This Philippine Airlines deal was found by Cheapflights users on 4/16. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:20 amKIX - SEA
1 stop24h 55mPhilippine Airlines
Wed 9/311:35 pmSEA - KIX
1 stop28h 05mPhilippine Airlines
Deal found 4/16$1,166
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:05 amKIX - SEA
2 stops30h 53mDelta
Mon 9/812:45 pmSEA - KIX
1 stop16h 15mDelta
Deal found 4/16$1,299
This HIS deal was found by Cheapflights users on 4/16. 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 HIS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:35 pmKIX - SEA
2 stops26h 22mKorean Air
Thu 6/2612:55 pmSEA - KIX
1 stop30h 25mKorean Air
Deal found 4/16$1,570
This Gurufare deal was found by Cheapflights users on 4/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/39:10 amKIX - SEA
2 stops23h 49mCathay Pacific
Sun 8/247:00 amSEA - KIX
2 stops31h 40mCathay Pacific
Deal found 4/16$1,836
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:25 amKIX - SEA
2 stops21h 00mUnited Airlines
Sun 8/1712:20 amSEA - KIX
2 stops22h 30mUnited Airlines
Deal found 4/16$2,002
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1411:50 amKIX - SEA
1 stop14h 45mAmerican Airlines
Fri 7/1112:55 amSEA - KIX
2 stops25h 50mAmerican Airlines
Deal found 4/16$2,277

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 April 17, 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

Wed 5/21

11:35 am-2:13 pm

2 stops18h 38m

Seattle/Tacoma Intl

Wed 5/28

10:00 am-8:30 pm

2 stops18h 30m

$769

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/25

6:30 pm-7:30 pm

1 stop17h 00m

Seattle/Tacoma Intl

Thu 6/26

1:50 am-10:10 am

1 stop16h 20m

$908

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 5/11

7:05 pm-7:30 pm

1 stop16h 25m

Seattle/Tacoma Intl

Thu 5/15

1:10 am-12:00 pm

1 stop18h 50m

$913

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 5/21

1:25 pm-4:10 pm

1 stop18h 45m

Seattle/Tacoma Intl

Tue 5/27

1:15 am-12:15 pm

1 stop19h 00m

$948

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 6/14

6:05 pm-6:33 pm

1 stop16h 28m

Seattle/Tacoma Intl

Sat 7/12

1:45 pm-4:25 pm

1 stop34h 40m

$1,041

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 8/21

7:10 pm-12:45 pm

1 stop33h 35m

Seattle/Tacoma Intl

Mon 9/8

2:15 pm-9:40 am

1 stop27h 25m

$1,114

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 8/20

10:20 am-7:15 pm

1 stop24h 55m

Seattle/Tacoma Intl

Wed 9/3

11:35 pm-7:40 pm

1 stop28h 05m

$1,166

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 8/21

9:05 am-11:58 pm

2 stops30h 53m

Seattle/Tacoma Intl

Mon 9/8

12:45 pm-9:00 pm

1 stop16h 15m

$1,299

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 6/13

12:35 pm-10:57 pm

2 stops26h 22m

Seattle/Tacoma Intl

Thu 6/26

12:55 pm-11:20 am

1 stop30h 25m

$1,570

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 8/3

9:10 am-4:59 pm

2 stops23h 49m

Seattle/Tacoma Intl

Sun 8/24

7:00 am-6:40 am

2 stops31h 40m

$1,836

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 21 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 April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Osaka Kansai Intl Airport-Seattle flight deals on Cheapflights vs. AranGrant >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 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 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 month to book a flight from Osaka Kansai Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Osaka Kansai Intl Airport to Seattle (average of $238). Flying from Osaka Kansai Intl Airport to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 April 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 44% on flights from Osaka Kansai Intl Airport to Seattle by exploring options for tickets in the morning.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 17, 2025.
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
154 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very good
1,177 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very good
1,064 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
China Airlines
8.2
Very good
729 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Asiana Airlines
8.2
Very good
438 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.9

Overall

9.1

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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. 2 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.

  • What are the cheapest airlines flying from Osaka Kansai Intl Airport to Seattle round-trip?

    Flying on EVA Air is currently your cheapest option to Seattle, with prices starting at $908. Additional round-trip tickets that might be worth considering are offered by China Airlines and STARLUX Airlines, with the lowest prices starting at $913 and $948, respectively. You may be able to fly from Osaka Kansai Intl Airport to Seattle for 11% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is China Airlines, with whom users have recently found tickets for as low as $559. However, be on the lookout for offers from EVA Air and Asiana 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.

  • What is the cheapest month to book a flight from Osaka Kansai Intl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Osaka Kansai Intl Airport to Seattle (average of $238). Flying from Osaka Kansai Intl Airport to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Aberdeen
Kent
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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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.
Itami to Seattle flights
Kansai Intl to Portland flights

Top 2 airlines flying from Kansai Intl to Seattle

Discover the top 2 airlines 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$802Average$1,581FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$852Average$923FlexibilityNo cancel feeOn-time76%

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