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 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.

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.

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

United Airlines can get you from Seattle to Osaka Kansai Intl Airport in just under 17h 37m. Your travel time can differ by up to . The distance from Seattle to Osaka Kansai Intl Airport is about 5024 mi.

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.

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.

$305+ Flights from Seattle to Osaka Kansai Intl Airport

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Osaka Kansai Intl are usually found in November or September, booked 83 days in advance, depart on a Thursday or Monday and return on a Thursday

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 8, 2025.

Sat 12/612:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Sun 12/149:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 12/6

$832

Sun 12/710:05 amSEA - KIX

2 stops18h 35mMultiple Airlines

Sun 12/147:50 amKIX - SEA

2 stops23h 41mMultiple Airlines

Deal found 12/6

$895

Sun 12/712:10 pmSEA - KIX

1 stop27h 15mJapan Airlines

Sun 12/147:00 amKIX - SEA

1 stop19h 50mJapan Airlines

Deal found 12/6

$990

Wed 12/1010:05 amSEA - KIX

2 stops18h 35mMultiple Airlines

Wed 12/177:50 amKIX - SEA

2 stops31h 56mMultiple Airlines

Deal found 12/6

$1,039

Sun 12/77:00 amSEA - KIX

2 stops21h 50mANA

Sun 12/143:45 pmKIX - SEA

1 stop14h 35mANA

Deal found 12/6

$1,079

Thu 12/1112:35 pmSEA - KIX

1 stop31h 50mMultiple Airlines

Thu 1/297:40 amKIX - SEA

2 stops28h 09mMultiple Airlines

Deal found 12/8

$1,116

Thu 12/117:00 amSEA - KIX

1 stop16h 40mANA

Thu 1/295:35 pmKIX - SEA

1 stop12h 45mANA

Deal found 12/8

$1,150

Thu 12/117:00 amSEA - KIX

1 stop16h 40mANA

Thu 12/183:45 pmKIX - SEA

1 stop14h 35mANA

Deal found 12/7

$1,174

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 8, 2025.

Fri 1/96:03 amSEA - KIX

1 stop17h 37mUnited Airlines

Sun 1/258:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/6

$642

Fri 2/207:15 amSEA - KIX

1 stop16h 25mUnited Airlines

Mon 3/168:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/8

$646

Thu 1/296:18 amSEA - KIX

1 stop17h 22mUnited Airlines

Sun 2/158:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/7

$646

Fri 1/306:03 amSEA - KIX

1 stop17h 37mUnited Airlines

Sun 2/158:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/7

$646

Sat 1/316:03 amSEA - KIX

1 stop17h 37mUnited Airlines

Tue 2/178:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/7

$654

Thu 1/296:18 amSEA - KIX

1 stop17h 22mUnited Airlines

Thu 2/198:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/8

$654

Tue 1/276:18 amSEA - KIX

1 stop17h 22mUnited Airlines

Sun 2/158:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/7

$654

Wed 1/285:12 pmSEA - KIX

2 stops30h 28mUnited Airlines

Mon 2/168:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/7

$656

Thu 2/197:15 amSEA - KIX

1 stop16h 25mUnited Airlines

Mon 3/168:20 amKIX - SEA

2 stops28h 38mUnited Airlines

Deal found 12/8

$656

Thu 2/198:30 amSEA - KIX

2 stops39h 10mUnited Airlines

Sun 3/158:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/8

$656

Sat 2/712:35 pmSEA - KIX

2 stops37h 50mUnited Airlines

Mon 3/168:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 12/8

$661

Last-minute flights from Seattle to Kansai Intl
Discover last-minute flight deals from Seattle to Kansai Intl. Data last updated December 8, 2025 and is based on user searches.

Fri 1/910:05 amSEA - KIX

2 stops17h 30mMultiple Airlines

Sun 1/258:00 amKIX - SEA

2 stops28h 16mMultiple Airlines

Deal found 12/6

$628

Tue 1/136:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Tue 1/208:00 amKIX - SEA

1 stop18h 55mJapan Airlines

Deal found 12/8

$630

Wed 1/145:50 amSEA - KIX

2 stops35h 20mMultiple Airlines

Tue 1/209:10 pmKIX - SEA

2 stops39h 06mMultiple Airlines

Deal found 12/7

$626

Thu 1/1511:00 amSEA - KIX

1 stop16h 45mKorean Air

Sun 2/1511:55 amKIX - SEA

1 stop14h 05mKorean Air

Deal found 12/8

$632

Sun 1/1810:05 amSEA - KIX

2 stops17h 30mMultiple Airlines

Tue 1/2710:50 amKIX - SEA

2 stops25h 26mMultiple Airlines

Deal found 12/6

$608

Tue 1/205:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Tue 1/2710:50 amKIX - SEA

2 stops25h 26mMultiple Airlines

Deal found 12/6

$609

Tue 1/2012:30 pmSEA - KIX

1 stop28h 40mJapan Airlines

Tue 1/2710:50 amKIX - SEA

2 stops39h 08mJapan Airlines

Deal found 12/8

$638

Wed 1/2110:05 amSEA - KIX

2 stops34h 20mMultiple Airlines

Wed 1/288:00 amKIX - SEA

2 stops31h 06mMultiple Airlines

Deal found 12/6

$624

Thu 1/2210:05 amSEA - KIX

2 stops17h 30mMultiple Airlines

Mon 1/268:00 amKIX - SEA

2 stops31h 06mMultiple Airlines

Deal found 12/5

$625

Thu 1/229:55 amSEA - KIX

2 stops17h 40mMultiple Airlines

Thu 1/2910:50 amKIX - SEA

2 stops20h 41mMultiple Airlines

Deal found 12/8

$637

Fri 1/236:03 amSEA - KIX

1 stop17h 37mANA

Sat 2/142:05 pmKIX - SEA

1 stop16h 15mANA

Deal found 12/6

$629

Sat 1/318:00 pmSEA - KIX

2 stops43h 45mMultiple Airlines

Thu 2/58:00 amKIX - SEA

2 stops42h 31mMultiple Airlines

Deal found 12/7

$627

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 8, 2025.

Tue 3/39:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 12/6

$305

Wed 3/49:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 12/6

$319

Wed 1/1410:05 amSEA - KIX

2 stops17h 30mMultiple Airlines

Deal found 12/7

$323

Fri 1/165:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Deal found 12/6

$324

Wed 1/215:50 amSEA - KIX

2 stops21h 45mMultiple Airlines

Deal found 12/7

$326

Fri 2/273:45 pmSEA - KIX

1 stop23h 50mANA

Deal found 12/5

$331

Sun 3/19:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 12/6

$333

Sat 2/73:39 pmSEA - KIX

2 stops48h 06mJapan Airlines

Deal found 12/6

$337

Fri 1/1611:00 amSEA - KIX

1 stop30h 45mKorean Air

Deal found 12/8

$339

Fri 1/306:00 amSEA - KIX

1 stop19h 50mJapan Airlines

Deal found 12/5

$341

Fri 1/166:03 amSEA - KIX

1 stop17h 37mANA

Deal found 12/6

$342

Find flight deals from Seattle to Kansai Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$608 (Air Canada)
One-way from	$305 (CrystalTravel)
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. 11% potential increase in price ($122 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($24 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

Fri 1/9

6:03 am-4:40 pm

1 stop17h 37m

Osaka Kansai Intl

Sun 1/25

8:20 am-1:20 pm

1 stop22h 00m

$642

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 2/20

7:15 am-4:40 pm

1 stop16h 25m

Osaka Kansai Intl

Mon 3/16

8:20 am-2:20 pm

1 stop22h 00m

$646

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 1/29

6:18 am-4:40 pm

1 stop17h 22m

Osaka Kansai Intl

Sun 2/15

8:20 am-1:20 pm

1 stop22h 00m

$646

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 1/30

6:03 am-4:40 pm

1 stop17h 37m

Osaka Kansai Intl

Sun 2/15

8:20 am-1:20 pm

1 stop22h 00m

$646

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 1/31

6:03 am-4:40 pm

1 stop17h 37m

Osaka Kansai Intl

Tue 2/17

8:20 am-1:20 pm

1 stop22h 00m

$654

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 1/29

6:18 am-4:40 pm

1 stop17h 22m

Osaka Kansai Intl

Thu 2/19

8:20 am-1:20 pm

1 stop22h 00m

$654

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 1/27

6:18 am-4:40 pm

1 stop17h 22m

Osaka Kansai Intl

Sun 2/15

8:20 am-1:20 pm

1 stop22h 00m

$654

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 1/28

5:12 pm-4:40 pm

2 stops30h 28m

Osaka Kansai Intl

Mon 2/16

8:20 am-1:20 pm

1 stop22h 00m

$656

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 2/19

7:15 am-4:40 pm

1 stop16h 25m

Osaka Kansai Intl

Mon 3/16

8:20 am-8:58 pm

2 stops28h 38m

$656

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 2/19

8:30 am-4:40 pm

2 stops39h 10m

Osaka Kansai Intl

Sun 3/15

8:20 am-2:20 pm

1 stop22h 00m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 23 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
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Ovago	Price Accuracy2 stars	Trust Score*2 stars
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 $983). 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 SEA to KIX?

It’s typically best to fly out from Seattle to Osaka Kansai Intl Airport in the morning. Doing so could potentially save you 32% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Seattle to Osaka Kansai Intl Airport?

Travelers seeking maximum savings on their Seattle to Osaka Kansai Intl Airport flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Kansai Intl

See what other customers who have flown with STARLUX Airlines, ANA, and Korean Air 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

243 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

243 reviews

STARLUX Airlines

8.9

Very good

243 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

1,020 reviews

STARLUX Airlines

8.9

Very good

243 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Korean Air

8.4

Very good

1,183 reviews

STARLUX Airlines

8.9

Very good

243 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

490 reviews

STARLUX Airlines

8.9

Very good

243 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

10,513 reviews

STARLUX Airlines

8.9

Very good

243 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?
United Airlines can get you from Seattle to Osaka Kansai Intl Airport in just under 17h 37m. Your travel time can differ by up to . The distance from Seattle to Osaka Kansai Intl Airport is about 5024 mi.
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 $983). 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$772	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$647	Average$837	FlexibilityNo cancel fee	On-time69%
ANA	Cheapest$657	Average$825	FlexibilityNo cancel fee	On-time80%
Air Canada	Cheapest$669	Average$802	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$716	Average$976	FlexibilityNo cancel fee	On-time81%
China Airlines	Cheapest$1,056	Average$1,167	FlexibilityNo cancel fee	On-time70%
STARLUX Airlines	Cheapest$1,095	Average$1,294	FlexibilityNo cancel fee	On-timeN/A

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$305+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Osaka Kansai Intl are usually found in November or September, booked 83 days in advance, depart on a Thursday or Monday and return on a Thursday

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 8, 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 8, 2025.

Find flight deals from Seattle to Kansai Intl

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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 Seattle to Kansai Intl in December.

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.

Cheapflights Insights

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 Korean Air 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.

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

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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 8, 2025.