฿10,485 Cheap Flights from Seattle (SEA) to Osaka (KIX)

View ฿10,485 flight on Sun, 22 Feb 2026Opens 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 ฿10,485 for one-way flights and ฿20,555 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿20,555 Return, found 7 hours ago
฿20,555
Return
found 7 hours ago
Select United flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿20,555 found 7 hours ago
All Nippon Airways
Sun, 11 Jan - Sun, 18 Jan
SEA
Seattle
KIX
Osaka
฿20,870 Return, found 17 hours ago
฿20,870
Return
found 17 hours ago
Select All Nippon Airways flight, departing Sun, 11 Jan from Seattle to Osaka, returning Sun, 18 Jan, priced at ฿20,870 found 17 hours ago
All Nippon Airways
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿21,200 Return, found 7 hours ago
฿21,200
Return
found 7 hours ago
Select All Nippon Airways flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿21,200 found 7 hours ago
Korean Air
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿22,685 Return, found 7 hours ago
฿22,685
Return
found 7 hours ago
Select Korean Air flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿22,685 found 7 hours ago
Korean Air
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿22,900 Return, found 7 hours ago
฿22,900
Return
found 7 hours ago
Select Korean Air flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿22,900 found 7 hours ago
United
Fri, 21 Aug - Tue, 1 Sept
SEA
Seattle
KIX
Osaka
฿23,425 Return, found 6 days ago
฿23,425
Return
found 6 days ago
Select United flight, departing Fri, 21 Aug from Seattle to Osaka, returning Tue, 1 Sept, priced at ฿23,425 found 6 days ago
Japan Airlines
Sun, 11 Jan - Sun, 18 Jan
SEA
Seattle
KIX
Osaka
฿23,540 Return, found 17 hours ago
฿23,540
Return
found 17 hours ago
Select Japan Airlines flight, departing Sun, 11 Jan from Seattle to Osaka, returning Sun, 18 Jan, priced at ฿23,540 found 17 hours ago
Korean Air
Fri, 21 Aug - Tue, 1 Sept
SEA
Seattle
KIX
Osaka
฿23,830 Return, found 6 days ago
฿23,830
Return
found 6 days ago
Select Korean Air flight, departing Fri, 21 Aug from Seattle to Osaka, returning Tue, 1 Sept, priced at ฿23,830 found 6 days ago
Korean Air
Fri, 21 Aug - Tue, 1 Sept
SEA
Seattle
KIX
Osaka
฿24,045 Return, found 6 days ago
฿24,045
Return
found 6 days ago
Select Korean Air flight, departing Fri, 21 Aug from Seattle to Osaka, returning Tue, 1 Sept, priced at ฿24,045 found 6 days ago
Asiana Airlines
Sun, 22 Feb - Tue, 3 Mar
SEA
Seattle
KIX
Osaka
฿27,725 Return, found 7 hours ago
฿27,725
Return
found 7 hours ago
Select Asiana Airlines flight, departing Sun, 22 Feb from Seattle to Osaka, returning Tue, 3 Mar, priced at ฿27,725 found 7 hours ago

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

February is typically the cheapest month to fly

From ฿18,815 - ฿35,412 per traveller.

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 ฿20,555. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Kansai Intl.
Airlines serving
All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Japan Airlines, Korean Air, Philippine Airlines, Turkish Airlines, United
Return price
฿20,555
Distance
8044 km

Book with confidence

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 ฿10,485 and roundtrip prices from ฿20,555. 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.
Perfect flights from Seattle to Osaka

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฿333,975.00
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