What’s the cheapest layover airport for flights from Seattle to Osaka Kansai Intl Airport?

Honolulu (HNL) is the most affordable 1-stop option, with an average round-trip price of $548.

What’s the fastest layover option from Seattle to Osaka Kansai Intl Airport?

Flights via Tokyo (HND) have the shortest average one-way travel time for 1-stop routes: 13h 35m.

What’s the top layover airport for flights from Seattle to Osaka Kansai Intl Airport?

Honolulu (HNL) – chosen by Cheapflights users on 56% of 1-stop itineraries from Seattle to Osaka Kansai Intl Airport on Cheapflights.

Which airport typically offers the quickest layover for flights from Seattle to Osaka Kansai Intl Airport?

Flights via Tokyo (HND) offer the fastest connection on this route, with an average layover time of 2h 19m.

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

Japan Airlines, ANA, and Asiana Airlines can get you from Seattle to Osaka Kansai Intl Airport in just under 15h 40m. Your travel time can differ by up to 9h 50m. The distance from Seattle to Osaka Kansai Intl Airport is about 5024 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Flying on Alaska Airlines is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $370. Additional round-trip tickets that might be worth considering are offered by Asiana Airlines and United Airlines, with the lowest prices starting at $595 and $647, respectively. These flights start at 59% lower than the current average price 3 months from now.

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

$304 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on Korean Air and Air Canada, with prices starting from $355 and $360, respectively.

In terms of precipitation, rainfall in Osaka Kansai Intl Airport ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka Kansai Intl Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to Osaka Kansai Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

What are the most popular airlines that fly from Seattle to Osaka Kansai Intl Airport?

The most popular airlines flying from Seattle to Osaka Kansai Intl Airport are ANA, Asiana Airlines and Air Canada. Something to consider prior to booking your flight.

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

When flying from Seattle to Osaka Kansai Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Seattle-Osaka Kansai Intl Airport 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 Seattle-Osaka Kansai Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Seattle to Osaka Kansai Intl?

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Osaka Kansai Intl. 8 airlines have flights from Seattle/Tacoma Intl to Osaka Kansai Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Osaka Kansai Intl should not be difficult; the airport handles an average of 0 outbound flights to Osaka Kansai Intl per day.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Seattle to Kansai Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$323+ Flights from Seattle to Osaka Kansai Intl Airport

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Cheap flight deals from Seattle to Kansai Intl

Cheapest flights from Seattle to Kansai Intl
Explore the most affordable flight options available from Seattle to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Tue 12/3010:00 amSEA - KIX

1 stop33h 35mMultiple Airlines

Wed 1/148:45 pmKIX - SEA

2 stops32h 09mMultiple Airlines

Deal found 12/26

$845

Tue 12/3010:00 amSEA - KIX

1 stop33h 35mHainan Airlines

Wed 1/142:35 pmKIX - SEA

2 stops34h 30mHainan Airlines

Deal found 12/26

$861

Tue 12/303:40 pmSEA - KIX

1 stop13h 40mANA

Wed 1/149:10 pmKIX - SEA

1 stop33h 10mANA

Deal found 12/26

$882

Fri 12/267:12 pmSEA - KIX

1 stop28h 28mANA

Fri 1/302:05 pmKIX - SEA

1 stop16h 15mANA

Deal found 12/26

$884

Tue 12/305:05 pmSEA - KIX

2 stops30h 35mUnited Airlines

Wed 1/146:35 pmKIX - SEA

2 stops34h 06mUnited Airlines

Deal found 12/26

$890

Fri 12/267:12 pmSEA - KIX

1 stop28h 28mUnited Airlines

Fri 1/306:35 pmKIX - SEA

2 stops21h 41mUnited Airlines

Deal found 12/26

$898

Fri 12/267:12 pmSEA - KIX

2 stops46h 03mANA

Sun 1/119:10 pmKIX - SEA

1 stop33h 10mANA

Deal found 12/26

$973

Fri 12/265:05 pmSEA - KIX

2 stops30h 35mUnited Airlines

Sun 1/116:35 pmKIX - SEA

2 stops34h 06mUnited Airlines

Deal found 12/26

$1,257

Tue 12/305:59 pmSEA - KIX

3 stops27h 56mCathay Pacific

Wed 1/144:15 pmKIX - SEA

3 stops34h 46mCathay Pacific

Deal found 12/26

$1,436

Best flights from Seattle to Kansai Intl
Discover carefully curated flight deals from Seattle to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Tue 1/209:55 amSEA - KIX

2 stops17h 40mMultiple Airlines

Tue 1/2710:50 amKIX - SEA

2 stops25h 26mMultiple Airlines

Deal found 12/28

$608

Sat 1/316:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Wed 2/118:00 amKIX - SEA

1 stop18h 55mJapan Airlines

Deal found 12/26

$623

Sat 2/73:45 pmSEA - KIX

1 stop25h 30mANA

Sat 2/142:05 pmKIX - SEA

1 stop16h 15mANA

Deal found 12/27

$641

Mon 2/2312:10 amSEA - KIX

1 stop15h 40mAsiana Airlines

Tue 3/177:25 pmKIX - SEA

1 stop35h 30mAsiana Airlines

Deal found 12/27

$641

Sat 1/246:03 amSEA - KIX

1 stop17h 37mUnited Airlines

Sat 1/316:35 pmKIX - SEA

2 stops22h 12mUnited Airlines

Deal found 12/25

$658

Sun 1/186:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Tue 1/278:00 amKIX - SEA

1 stop18h 55mJapan Airlines

Deal found 12/27

$629

Sat 2/75:10 pmSEA - KIX

2 stops22h 25mANA

Sun 2/152:05 pmKIX - SEA

1 stop16h 15mANA

Deal found 12/27

$648

Tue 2/248:15 amSEA - KIX

2 stops31h 10mJapan Airlines

Tue 3/177:00 amKIX - SEA

2 stops25h 04mJapan Airlines

Deal found 12/26

$649

Sun 1/113:45 pmSEA - KIX

1 stop23h 50mANA

Sun 1/186:35 pmKIX - SEA

1 stop14h 09mANA

Deal found 12/27

$657

Tue 1/1312:30 pmSEA - KIX

1 stop28h 40mJapan Airlines

Tue 1/203:00 pmKIX - SEA

2 stops18h 47mJapan Airlines

Deal found 12/27

$652

Wed 2/188:15 amSEA - KIX

2 stops21h 05mJapan Airlines

Wed 2/255:50 pmKIX - SEA

1 stop21h 56mJapan Airlines

Deal found 12/27

$661

Last-minute flights from Seattle to Kansai Intl
Discover last-minute flight deals from Seattle to Kansai Intl. Data last updated December 28, 2025 and is based on user searches.

Tue 1/136:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Tue 1/2010:50 amKIX - SEA

1 stop16h 05mJapan Airlines

Deal found 12/28

$629

Sun 1/185:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Tue 1/2710:50 amKIX - SEA

2 stops25h 26mMultiple Airlines

Deal found 12/28

$608

Tue 1/208:06 amSEA - KIX

1 stop17h 44mMultiple Airlines

Tue 1/277:00 amKIX - SEA

1 stop19h 55mMultiple Airlines

Deal found 12/27

$630

Tue 1/205:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Mon 2/26:45 amKIX - SEA

2 stops24h 46mMultiple Airlines

Deal found 12/26

$633

Sun 1/255:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Sun 2/110:40 amKIX - SEA

2 stops20h 51mMultiple Airlines

Deal found 12/28

$624

Sun 1/2512:30 pmSEA - KIX

1 stop26h 55mJapan Airlines

Sun 2/19:05 pmKIX - SEA

1 stop29h 50mJapan Airlines

Deal found 12/28

$631

Mon 1/266:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Mon 2/28:00 amKIX - SEA

1 stop18h 55mJapan Airlines

Deal found 12/27

$607

Wed 1/285:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Thu 2/1210:40 amKIX - SEA

2 stops20h 51mMultiple Airlines

Deal found 12/27

$617

Sat 1/316:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Thu 2/128:00 amKIX - SEA

1 stop18h 55mJapan Airlines

Deal found 12/26

$623

Sat 1/316:00 amSEA - KIX

2 stops33h 25mJapan Airlines

Sat 2/147:00 amKIX - SEA

1 stop19h 55mJapan Airlines

Deal found 12/26

$625

Sat 1/316:00 amSEA - KIX

2 stops23h 20mJapan Airlines

Wed 2/117:00 amKIX - SEA

1 stop19h 55mJapan Airlines

Deal found 12/26

$632

One-way flights from Seattle to Kansai Intl
Search for one-way flight options from Seattle to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Tue 1/275:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Deal found 12/28

$323

Wed 2/47:00 amSEA - KIX

1 stop18h 45mAlaska Airlines

Deal found 12/25

$327

Sat 1/316:00 amSEA - KIX

2 stops23h 20mJapan Airlines

Deal found 12/28

$341

Thu 2/56:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Deal found 12/25

$344

Wed 2/48:25 amSEA - KIX

2 stops20h 55mJapan Airlines

Deal found 12/25

$345

Tue 2/36:18 amSEA - KIX

1 stop17h 22mANA

Deal found 12/25

$348

Sat 1/316:03 amSEA - KIX

1 stop17h 37mANA

Deal found 12/28

$349

Fri 2/66:03 amSEA - KIX

1 stop17h 37mUnited Airlines

Deal found 12/25

$352

Mon 2/25:12 pmSEA - KIX

2 stops30h 28mUnited Airlines

Deal found 12/25

$357

Find flight deals from Seattle to Kansai Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$607 (CrystalTravel)
One-way from	$323 (Air Canada)
Popular in	June
Cheapest in	November
Average price	$881

Provider with most accurate pricing for Seattle/Tacoma Intl-Osaka Kansai Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Osaka Kansai Intl flights.

Search Deals

From Seattle/Tacoma Intl to Osaka Kansai Intl

Search Deals

One-way flight from Seattle/Tacoma Intl to Osaka Kansai Intl

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($126 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Osaka Kansai Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 1/20

9:55 am-8:35 pm

2 stops17h 40m

Osaka Kansai Intl

Tue 1/27

10:50 am-7:16 pm

2 stops25h 26m

$608

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 1/31

6:00 am-6:50 pm

1 stop19h 50m

Osaka Kansai Intl

Wed 2/11

8:00 am-9:55 am

1 stop18h 55m

$623

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 1/18

6:00 am-6:50 pm

1 stop19h 50m

Osaka Kansai Intl

Tue 1/27

8:00 am-9:55 am

1 stop18h 55m

$629

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 2/7

3:45 pm-10:15 am

1 stop25h 30m

Osaka Kansai Intl

Sat 2/14

2:05 pm-1:20 pm

1 stop16h 15m

$641

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 2/23

12:10 am-8:50 am

1 stop15h 40m

Osaka Kansai Intl

Tue 3/17

7:25 pm-2:55 pm

1 stop35h 30m

$641

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 2/7

5:10 pm-8:35 am

2 stops22h 25m

Osaka Kansai Intl

Sun 2/15

2:05 pm-1:20 pm

1 stop16h 15m

$648

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 2/24

8:15 am-8:25 am

2 stops31h 10m

Osaka Kansai Intl

Tue 3/17

7:00 am-4:04 pm

2 stops25h 04m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 1/13

12:30 pm-10:10 am

1 stop28h 40m

Osaka Kansai Intl

Tue 1/20

3:00 pm-4:47 pm

2 stops18h 47m

$652

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 1/11

3:45 pm-8:35 am

1 stop23h 50m

Osaka Kansai Intl

Sun 1/18

6:35 pm-3:44 pm

1 stop14h 09m

$657

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 1/24

6:03 am-4:40 pm

1 stop17h 37m

Osaka Kansai Intl

Sat 1/31

6:35 pm-11:47 pm

2 stops22h 12m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 17 results

Compare providers for flights from Seattle to Kansai Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Kansai Intl in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

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

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

Prices

How far ahead should I book a flight from Seattle to Osaka Kansai Intl Airport?

To ensure you get the cheapest price possible for a flight from Seattle to Osaka Kansai Intl Airport, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Osaka Kansai Intl Airport (average of $370). Flying from Seattle to Osaka Kansai Intl Airport in June is currently the most expensive (average of $984). 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.

Reviews of airlines servicing Kansai Intl

See what other customers who have flown with STARLUX Airlines, ANA, and Asiana Airlines from Seattle to Osaka Kansai Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

STARLUX Airlines

8.9

Very good

250 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

ANA

8.4

Very good

1,050 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Asiana Airlines

8.2

Very good

502 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Alaska Airlines

8.0

Very good

11,559 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Air Canada

7.1

Good

10,563 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

What airport do you fly from for flights from Seattle to Osaka Kansai Intl?
Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Osaka Kansai Intl. 8 airlines have flights from Seattle/Tacoma Intl to Osaka Kansai Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Osaka Kansai Intl should not be difficult; the airport handles an average of 0 outbound flights to Osaka Kansai Intl per day.
How long is the flight from Seattle to Osaka Kansai Intl Airport?
Japan Airlines, ANA, and Asiana Airlines can get you from Seattle to Osaka Kansai Intl Airport in just under 15h 40m. Your travel time can differ by up to 9h 50m. The distance from Seattle to Osaka Kansai Intl Airport is about 5024 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Seattle to Osaka Kansai Intl Airport round-trip?
Flying on Alaska Airlines is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $370. Additional round-trip tickets that might be worth considering are offered by Asiana Airlines and United Airlines, with the lowest prices starting at $595 and $647, respectively. These flights start at 59% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Seattle to Osaka Kansai Intl Airport one-way?
$304 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on Korean Air and Air Canada, with prices starting from $355 and $360, respectively.
Can I find deals for flights from Seattle to Kansai Intl that include hotel bookings?
Yes. In addition to deals on Seattle to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Kansai Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kansai Intl.
Can I find deals for business class flights from Seattle to Kansai Intl?
Yes. Cheapflights offers flight deals from Seattle to Kansai Intl 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 Seattle to Osaka Kansai Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Seattle to Osaka Kansai Intl Airport (average of $370). Flying from Seattle to Osaka Kansai Intl Airport in June is currently the most expensive (average of $984). 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

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Top 8 airlines flying from Seattle to Kansai Intl

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$370	Average$438	FlexibilityNo cancel fee	On-time75%
Asiana Airlines	Cheapest$595	Average$754	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$647	Average$837	FlexibilityNo cancel fee	On-time69%
ANA	Cheapest$650	Average$808	FlexibilityNo cancel fee	On-time80%
Korean Air	Cheapest$660	Average$846	FlexibilityNo cancel fee	On-time81%
Air Canada	Cheapest$669	Average$802	FlexibilityNo cancel fee	On-time67%
STARLUX Airlines	Cheapest$934	Average$1,267	FlexibilityNo cancel fee	On-timeN/A
China Airlines	Cheapest$1,056	Average$1,167	FlexibilityNo cancel fee	On-time70%

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$323+ Cheap flights from Seattle (SEA) to Kansai Intl (KIX)

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Kansai Intl with Cheapflights

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Cheap flight deals from Seattle to Kansai Intl

Cheapest flights from Seattle to Kansai IntlExplore the most affordable flight options available from Seattle to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Explore the most affordable flight options available from Seattle to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Find flight deals from Seattle to Kansai Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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

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Reviews of airlines servicing Kansai Intl

See what other customers who have flown with STARLUX Airlines, ANA, and Asiana Airlines from Seattle to Osaka Kansai Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kansai Intl. 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 from for flights from Seattle to Osaka Kansai Intl?

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

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

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

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

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

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Alternative routes for Seattle to Kansai Intl

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Top 8 airlines flying from Seattle to Kansai Intl

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Cheapest flights from Seattle to Kansai Intl
Explore the most affordable flight options available from Seattle to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.