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 cheapest layover airport for flights from Seattle to Osaka Kansai Intl Airport?

Tokyo (HND) is the most affordable 1-stop option, with an average round-trip price of $778.

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 24m.

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

Tokyo (HND) – chosen by Cheapflights users on 60% of 1-stop itineraries from Seattle to Osaka Kansai Intl Airport on Cheapflights.

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

Asiana Airlines, United Airlines, and Korean Air can get you from Seattle to Osaka Kansai Intl Airport in just under 15h 50m. Your travel time can differ by up to 11h 55m. 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 Asiana Airlines is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $648. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at $649 and $669, respectively. These flights start at 33% lower than the current average price 3 months from now.

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 Air Canada, EVA Air and China Airlines. Something to consider prior to booking your flight.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 40%.

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

To save on the cost of your flight from Seattle to Osaka Kansai Intl Airport, book at least 34 days before your planned departure. Booking around this time can save you about 6% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $690 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $781.

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

Our data shows that September tends to be the cheapest month to fly to Osaka Kansai Intl Airport from Seattle. Users have commonly found prices around $940 for the month, but tickets can be as low as $641. Due to multiple factors, prepare for potentially higher prices in December.

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. 10 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.

$303+ 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 February or September, booked 20 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap flight deals from Seattle to Kansai Intl

Round-trip from	$570 (FlightHub)
One-way from	$303 (FlightHub)
Popular in	December
Cheapest in	February
Average price	$787

From Seattle/Tacoma Intl to Osaka Kansai Intl

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

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Highest demand for flights based on searches. 5% potential increase in price ($58 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find 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 September 15, 2025.

Sun 11/3012:10 amSEA - KIX

1 stop16h 30mAsiana Airlines

Mon 12/1510:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$570

Sat 11/812:10 amSEA - KIX

1 stop16h 30mAsiana Airlines

Sun 11/1610:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$592

Sat 11/812:10 amSEA - KIX

1 stop16h 30mAsiana Airlines

Tue 11/189:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 9/12

$599

Sun 10/2612:10 amSEA - KIX

1 stop17h 30mAsiana Airlines

Tue 11/1110:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$601

Mon 12/112:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Tue 12/1610:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$619

Tue 10/212:15 pmSEA - KIX

1 stop35h 35mAsiana Airlines

Mon 10/279:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 9/15

$623

Tue 10/2812:00 pmSEA - KIX

1 stop32h 50mKorean Air

Fri 10/3111:55 amKIX - SEA

2 stops24h 19mKorean Air

Deal found 9/14

$628

Tue 10/2812:00 pmSEA - KIX

1 stop16h 45mKorean Air

Tue 11/411:55 amKIX - SEA

2 stops22h 10mKorean Air

Deal found 9/13

$638

Sun 9/287:00 amSEA - KIX

1 stop15h 50mUnited Airlines

Thu 10/164:50 pmKIX - SEA

1 stop20h 25mUnited Airlines

Deal found 9/13

$645

Tue 10/2112:50 pmSEA - KIX

1 stop16h 10mKorean Air

Mon 10/272:00 pmKIX - SEA

2 stops45h 58mKorean Air

Deal found 9/15

$646

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 September 15, 2025.

Mon 11/1012:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Thu 11/209:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 9/15

$599

Sun 9/287:00 amSEA - KIX

1 stop15h 50mUnited Airlines

Thu 10/164:50 pmKIX - SEA

1 stop20h 25mUnited Airlines

Deal found 9/13

$645

Sun 9/2812:50 pmSEA - KIX

1 stop16h 10mKorean Air

Mon 10/136:10 pmKIX - SEA

1 stop32h 30mKorean Air

Deal found 9/12

$649

Tue 10/285:30 amSEA - KIX

1 stop19h 10mANA

Tue 11/183:45 pmKIX - SEA

1 stop14h 35mANA

Deal found 9/15

$661

Sun 10/2612:10 amSEA - KIX

1 stop17h 30mAsiana Airlines

Tue 11/1110:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$601

Mon 12/13:40 pmSEA - KIX

1 stop34h 45mUnited Airlines

Fri 12/198:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 9/13

$675

Tue 12/212:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Mon 12/1510:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$649

Sun 12/73:40 pmSEA - KIX

1 stop34h 45mUnited Airlines

Thu 12/188:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 9/13

$675

Sun 11/3012:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Thu 12/189:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 9/13

$649

Tue 12/27:00 amSEA - KIX

2 stops19h 25mUnited Airlines

Wed 12/178:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 9/13

$679

Tue 12/27:00 amSEA - KIX

2 stops19h 25mUnited Airlines

Fri 12/198:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 9/13

$679

Sun 12/77:00 amSEA - KIX

2 stops19h 25mUnited Airlines

Wed 12/178:20 amKIX - SEA

1 stop22h 00mUnited Airlines

Deal found 9/13

$679

Last-minute flights from Seattle to Kansai Intl
Discover last-minute flight deals from Seattle to Kansai Intl. Data last updated September 15, 2025 and is based on user searches.

Sat 9/272:15 pmSEA - KIX

1 stop27h 25mAsiana Airlines

Tue 10/1410:50 amKIX - SEA

1 stop17h 40mAsiana Airlines

Deal found 9/13

$649

Sat 9/275:26 pmSEA - KIX

2 stops29h 24mUnited Airlines

Thu 10/164:50 pmKIX - SEA

2 stops21h 03mUnited Airlines

Deal found 9/13

$650

Sun 9/287:00 amSEA - KIX

1 stop15h 50mUnited Airlines

Thu 10/164:50 pmKIX - SEA

1 stop20h 25mUnited Airlines

Deal found 9/13

$645

Sun 9/287:15 amSEA - KIX

2 stops21h 45mKorean Air

Wed 10/1512:35 pmKIX - SEA

1 stop14h 05mKorean Air

Deal found 9/13

$654

Sun 10/1211:35 pmSEA - KIX

1 stop28h 05mPhilippine Airlines

Sun 10/1910:20 amKIX - SEA

1 stop24h 55mPhilippine Airlines

Deal found 9/13

$655

Tue 10/212:15 pmSEA - KIX

1 stop35h 35mAsiana Airlines

Mon 10/279:00 amKIX - SEA

1 stop21h 55mAsiana Airlines

Deal found 9/15

$623

Tue 10/2112:50 pmSEA - KIX

1 stop16h 10mKorean Air

Mon 10/272:00 pmKIX - SEA

2 stops45h 58mKorean Air

Deal found 9/15

$646

Sun 10/2612:10 amSEA - KIX

1 stop17h 30mAsiana Airlines

Tue 11/1110:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/13

$601

Mon 10/2712:10 amSEA - KIX

1 stop28h 45mAsiana Airlines

Tue 11/410:50 amKIX - SEA

1 stop20h 05mAsiana Airlines

Deal found 9/14

$599

Tue 10/2812:00 pmSEA - KIX

1 stop32h 50mKorean Air

Fri 10/3111:55 amKIX - SEA

2 stops24h 19mKorean Air

Deal found 9/14

$628

Tue 10/2812:00 pmSEA - KIX

1 stop16h 45mKorean Air

Tue 11/411:55 amKIX - SEA

2 stops22h 10mKorean Air

Deal found 9/13

$638

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 September 15, 2025.

Sun 11/1612:10 amSEA - KIX

1 stop16h 30mAsiana Airlines

Deal found 9/13

$303

Tue 11/412:10 amSEA - KIX

1 stop16h 30mAsiana Airlines

Deal found 9/13

$318

Tue 11/1812:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Deal found 9/14

$322

Wed 11/59:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 9/13

$331

Wed 10/2910:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 9/14

$332

Mon 11/1712:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Deal found 9/13

$333

Tue 10/2812:10 amSEA - KIX

1 stop17h 30mAsiana Airlines

Deal found 9/14

$335

Sat 11/2912:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Deal found 9/13

$336

Mon 11/179:08 amSEA - KIX

2 stops34h 12mMultiple Airlines

Deal found 9/13

$338

Sun 11/169:03 amSEA - KIX

2 stops44h 42mMultiple Airlines

Deal found 9/13

$340

Sun 11/169:30 pmSEA - KIX

1 stop29h 05mPhilippine Airlines

Deal found 9/13

$344

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

Mon 11/10

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Thu 11/20

9:00 am-1:55 pm

1 stop21h 55m

$599

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 10/26

12:10 am-9:40 am

1 stop17h 30m

Osaka Kansai Intl

Tue 11/11

10:50 am-1:55 pm

1 stop20h 05m

$601

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 9/28

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Thu 10/16

4:50 pm-9:15 pm

1 stop20h 25m

$645

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 9/28

12:50 pm-9:00 pm

1 stop16h 10m

Osaka Kansai Intl

Mon 10/13

6:10 pm-10:40 am

1 stop32h 30m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 12/2

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Mon 12/15

10:50 am-1:55 pm

1 stop20h 05m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 11/30

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Thu 12/18

9:00 am-1:55 pm

1 stop21h 55m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 10/28

5:30 am-4:40 pm

1 stop19h 10m

Osaka Kansai Intl

Tue 11/18

3:45 pm-1:20 pm

1 stop14h 35m

$661

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 12/1

3:40 pm-7:25 pm

1 stop34h 45m

Osaka Kansai Intl

Fri 12/19

8:20 am-1:20 pm

1 stop22h 00m

$675

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 12/7

3:40 pm-7:25 pm

1 stop34h 45m

Osaka Kansai Intl

Thu 12/18

8:20 am-1:20 pm

1 stop22h 00m

$675

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 12/2

7:00 am-7:25 pm

2 stops19h 25m

Osaka Kansai Intl

Wed 12/17

8:20 am-1:20 pm

1 stop22h 00m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 results

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 19 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, February is the cheapest month in which you can book a flight from Seattle to Osaka Kansai Intl Airport (average of $866). Flying from Seattle to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). 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 China 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

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

STARLUX Airlines

8.9

Very good

211 reviews

STARLUX Airlines

8.9

Very good

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

ANA

8.4

Very good

961 reviews

STARLUX Airlines

8.9

Very good

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

China Airlines

8.3

Very good

767 reviews

STARLUX Airlines

8.9

Very good

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

Asiana Airlines

8.2

Very good

479 reviews

STARLUX Airlines

8.9

Very good

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

Air Canada

7.1

Good

10,000 reviews

STARLUX Airlines

8.9

Very good

211 reviews

Reviews

1 / 8

10.0

Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

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. 10 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?
Asiana Airlines, United Airlines, and Korean Air can get you from Seattle to Osaka Kansai Intl Airport in just under 15h 50m. Your travel time can differ by up to 11h 55m. 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 Asiana Airlines is currently your cheapest option to Osaka Kansai Intl Airport, with prices starting at $648. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at $649 and $669, respectively. These flights start at 33% lower than the current average price 3 months from now.
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, February is the cheapest month in which you can book a flight from Seattle to Osaka Kansai Intl Airport (average of $866). Flying from Seattle to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). 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 10 airlines flying from Seattle to Kansai Intl

Airline	Cheapest	Average	Flexibility	On-time
Asiana Airlines	Cheapest$648	Average$854	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$649	Average$972	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$669	Average$848	FlexibilityNo cancel fee	On-time67%
ANA	Cheapest$670	Average$910	FlexibilityNo cancel fee	On-time80%
Korean Air	Cheapest$716	Average$1,133	FlexibilityNo cancel fee	On-time81%
China Eastern	Cheapest$719	Average$756	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$797	Average$905	FlexibilityNo cancel fee	On-time69%
STARLUX Airlines	Cheapest$918	Average$1,111	FlexibilityNo cancel fee	On-timeN/A
EVA Air	Cheapest$963	Average$1,159	FlexibilityNo cancel fee	On-time74%
China Airlines	Cheapest$1,017	Average$1,186	FlexibilityNo cancel fee	On-time70%

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$303+ 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 11/16. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Osaka Kansai Intl are usually found in February or September, booked 20 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap flight deals from Seattle to Kansai Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 September 15, 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 September 15, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to Kansai Intl

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Reviews of airlines servicing Kansai Intl

See what other customers who have flown with STARLUX Airlines, ANA, and China 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.

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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 September 15, 2025.