Cheap Flights from Seattle (SEA) to Osaka (KIX) from HK$3,176~

View HK$3,176 flight on Tue, 9 Sep 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Kansai Intl. Airport (KIX)

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Find Cheap Flights from Seattle (SEA) to Osaka (KIX)

Prices were available within the past 7 days and start at HK$3,176 for one-way flights and HK$5,641 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Sat, 16 May - Fri, 29 May
SEA
Seattle
KIX
Osaka
HK$5,641 Return, found 14 hours ago
HK$5,641
Return
found 14 hours ago
Select Korean Air flight, departing Sat, 16 May from Seattle to Osaka, returning Fri, 29 May, priced at HK$5,641 found 14 hours ago
Korean Air
Sat, 16 May - Fri, 29 May
SEA
Seattle
KIX
Osaka
HK$5,692 Return, found 14 hours ago
HK$5,692
Return
found 14 hours ago
Select Korean Air flight, departing Sat, 16 May from Seattle to Osaka, returning Fri, 29 May, priced at HK$5,692 found 14 hours ago
All Nippon Airways
Sat, 16 May - Fri, 29 May
SEA
Seattle
KIX
Osaka
HK$5,697 Return, found 14 hours ago
HK$5,697
Return
found 14 hours ago
Select All Nippon Airways flight, departing Sat, 16 May from Seattle to Osaka, returning Fri, 29 May, priced at HK$5,697 found 14 hours ago
United
Sat, 23 Aug - Tue, 26 Aug
SEA
Seattle
KIX
Osaka
HK$5,893 Return, found 3 days ago
HK$5,893
Return
found 3 days ago
Select United flight, departing Sat, 23 Aug from Seattle to Osaka, returning Tue, 26 Aug, priced at HK$5,893 found 3 days ago
United
Mon, 18 Aug - Tue, 26 Aug
SEA
Seattle
KIX
Osaka
HK$6,013 Return, found 3 days ago
HK$6,013
Return
found 3 days ago
Select United flight, departing Mon, 18 Aug from Seattle to Osaka, returning Tue, 26 Aug, priced at HK$6,013 found 3 days ago
United
Thu, 21 Aug - Tue, 26 Aug
SEA
Seattle
KIX
Osaka
HK$6,063 Return, found 3 days ago
HK$6,063
Return
found 3 days ago
Select United flight, departing Thu, 21 Aug from Seattle to Osaka, returning Tue, 26 Aug, priced at HK$6,063 found 3 days ago
Asiana Airlines
Wed, 20 Aug - Sat, 23 Aug
SEA
Seattle
KIX
Osaka
HK$6,111 Return, found 3 days ago
HK$6,111
Return
found 3 days ago
Select Asiana Airlines flight, departing Wed, 20 Aug from Seattle to Osaka, returning Sat, 23 Aug, priced at HK$6,111 found 3 days ago
Korean Air
Sun, 17 Aug - Wed, 27 Aug
SEA
Seattle
KIX
Osaka
HK$6,162 Return, found 3 days ago
HK$6,162
Return
found 3 days ago
Select Korean Air flight, departing Sun, 17 Aug from Seattle to Osaka, returning Wed, 27 Aug, priced at HK$6,162 found 3 days ago
All Nippon Airways
Sun, 17 Aug - Tue, 26 Aug
SEA
Seattle
KIX
Osaka
HK$6,167 Return, found 3 days ago
HK$6,167
Return
found 3 days ago
Select All Nippon Airways flight, departing Sun, 17 Aug from Seattle to Osaka, returning Tue, 26 Aug, priced at HK$6,167 found 3 days ago
Philippine Airlines
Wed, 20 Aug - Sun, 24 Aug
SEA
Seattle
KIX
Osaka
HK$7,753 Return, found 3 days ago
HK$7,753
Return
found 3 days ago
Select Philippine Airlines flight, departing Wed, 20 Aug from Seattle to Osaka, returning Sun, 24 Aug, priced at HK$7,753 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Osaka (KIX)

March is typically the cheapest month to fly

From HK$5,252 - HK$8,126 per traveller.

Graph displaying average flight prices per month

Seattle to Osaka route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kansai Intl.
Airlines serving
All Nippon Airways, Asiana Airlines, Cathay Pacific, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, United
Return price
HK$5,641
Distance
8044 km

Flights from Seattle to Osaka

Book cheap flights from Seattle (SEA) to Osaka (KIX) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Osaka (KIX) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Osaka (KIX) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Osaka flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Osaka and things to do in Osaka for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Osaka more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Osaka is HK$3,176 now!

 

Frequently asked questions

How much is a flight from Sea-Tac Airport to Kansai Intl. Airport (KIX)?
Start packing your bags, because round-trip flights between Seattle - Tacoma Intl. Airport (SEA) and Kansai Intl. Airport (KIX) start from HK$5,641. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Kansai Intl. Airport?
The majority of flights can be canceled online, but each air carrier has its own set of terms and conditions. If you do decide to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Sea-Tac Airport to Kansai Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Kansai Intl. Airport (KIX) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Kansai Intl. Airport (KIX)?
With a flight distance of 8,100 kilometers between SeaTac and Tajiri, this is a long-haul trip. Be sure to drink plenty of water and move your legs from time to time.
Which airlines fly direct from Sea-Tac Airport to Kansai Intl. Airport?
Flying nonstop between Seattle - Tacoma Intl. Airport (SEA) and Kansai Intl. Airport isn't possible at the moment. However, you'll still be able to book a flight to Tajiri with at least one stop.
Are Sea-Tac Airport to Kansai Intl. Airport (KIX) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from SEA to KIX last minute could be your ticket to a cheap deal. However, it could end up costing a great deal more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.

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