฿11,655 Cheap Flights from Seattle (SEA) to Osaka (KIX)

View ฿11,655 flight on Sat, 25 Oct 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿11,655 for one-way flights and ฿20,905 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 9 Sep - Tue, 16 Sep
SEA
Seattle
KIX
Osaka
฿20,905 Return, found 1 day ago
฿20,905
Return
found 1 day ago
Select United flight, departing Tue, 9 Sep from Seattle to Osaka, returning Tue, 16 Sep, priced at ฿20,905 found 1 day ago
United
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿22,285 Return, found 13 hours ago
฿22,285
Return
found 13 hours ago
Select United flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿22,285 found 13 hours ago
Delta
Mon, 8 Sep - Tue, 16 Sep
SEA
Seattle
KIX
Osaka
฿22,400 Return, found 1 day ago
฿22,400
Return
found 1 day ago
Select Delta flight, departing Mon, 8 Sep from Seattle to Osaka, returning Tue, 16 Sep, priced at ฿22,400 found 1 day ago
Asiana Airlines
Mon, 8 Sep - Sat, 20 Sep
SEA
Seattle
KIX
Osaka
฿22,465 Return, found 1 day ago
฿22,465
Return
found 1 day ago
Select Asiana Airlines flight, departing Mon, 8 Sep from Seattle to Osaka, returning Sat, 20 Sep, priced at ฿22,465 found 1 day ago
Korean Air
Wed, 10 Sep - Tue, 16 Sep
SEA
Seattle
KIX
Osaka
฿22,465 Return, found 1 day ago
฿22,465
Return
found 1 day ago
Select Korean Air flight, departing Wed, 10 Sep from Seattle to Osaka, returning Tue, 16 Sep, priced at ฿22,465 found 1 day ago
All Nippon Airways
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿22,710 Return, found 13 hours ago
฿22,710
Return
found 13 hours ago
Select All Nippon Airways flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿22,710 found 13 hours ago
Asiana Airlines
Thu, 11 Sep - Tue, 16 Sep
SEA
Seattle
KIX
Osaka
฿22,795 Return, found 1 day ago
฿22,795
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 11 Sep from Seattle to Osaka, returning Tue, 16 Sep, priced at ฿22,795 found 1 day ago
Delta
Mon, 8 Sep - Wed, 17 Sep
SEA
Seattle
KIX
Osaka
฿23,000 Return, found 1 day ago
฿23,000
Return
found 1 day ago
Select Delta flight, departing Mon, 8 Sep from Seattle to Osaka, returning Wed, 17 Sep, priced at ฿23,000 found 1 day ago
Korean Air
Sun, 14 Sep - Wed, 17 Sep
SEA
Seattle
KIX
Osaka
฿23,065 Return, found 1 day ago
฿23,065
Return
found 1 day ago
Select Korean Air flight, departing Sun, 14 Sep from Seattle to Osaka, returning Wed, 17 Sep, priced at ฿23,065 found 1 day ago
Philippine Airlines
Fri, 12 Sep - Sun, 21 Sep
SEA
Seattle
KIX
Osaka
฿24,760 Return, found 1 day ago
฿24,760
Return
found 1 day ago
Select Philippine Airlines flight, departing Fri, 12 Sep from Seattle to Osaka, returning Sun, 21 Sep, priced at ฿24,760 found 1 day ago

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

September is typically the cheapest month to fly

From ฿21,175 - ฿38,182 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Osaka route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kansai Intl.
Airlines serving
All Nippon Airways, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, KLM, Korean Air, Philippine Airlines, United
Return price
฿20,905
Distance
8044 km

Perfect flights from Seattle to Osaka

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Osaka. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to Kansai Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿11,655 and roundtrip prices from ฿20,905. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Kansai Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Osaka.

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 ฿20,905. 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 cancelled 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 kilometres 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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Osaka Airports

Osaka

Seattle Airports

Seattle Paine Field Intl. Airport

Seattle Paine Field Intl. Airport to Osaka
฿201,875.00
*Available to Expedia members.