￥72,630 Cheap Flights from Osaka (OSA) to Seattle (SEA)

View ￥72,630 flight on Thu, Apr 23, 2026Opens in a new window

Popular airlines from Osaka to Seattle

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Cheap Flights from Osaka to Seattle (OSA-SEA)

Prices were available within the past 7 days and start at ￥72,630 for one-way flights and ￥95,030 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Jan 14 - Mon, Jan 26
KIX
Osaka
SEA
Seattle
￥95,030 Roundtrip, found 4 hours ago
￥95,030
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Osaka to Seattle, returning Mon, Jan 26, priced at ￥95,030 found 4 hours ago
Air Canada
Tue, Mar 17 - Sat, Mar 21
KIX
Osaka
SEA
Seattle
￥103,860 Roundtrip, found 9 hours ago
￥103,860
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Tue, Mar 17 from Osaka to Seattle, returning Sat, Mar 21, priced at ￥103,860 found 9 hours ago
Hainan Airlines
Fri, Apr 3 - Sat, Apr 18
KIX
Osaka
SEA
Seattle
￥109,520 Roundtrip, found 2 days ago
￥109,520
Roundtrip
found 2 days ago
Select Hainan Airlines flight, departing Fri, Apr 3 from Osaka to Seattle, returning Sat, Apr 18, priced at ￥109,520 found 2 days ago
Alaska Airlines
Thu, Jan 22 - Thu, Jan 29
ITM
Osaka
SEA
Seattle
￥111,270 Roundtrip, just found
￥111,270
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Jan 22 from Osaka to Seattle, returning Thu, Jan 29, priced at ￥111,270 just found
American Airlines
Tue, Jan 27 - Tue, Feb 3
ITM
Osaka
SEA
Seattle
￥123,980 Roundtrip, found 2 days ago
￥123,980
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jan 27 from Osaka to Seattle, returning Tue, Feb 3, priced at ￥123,980 found 2 days ago
Korean Air
Thu, Jan 22 - Sun, Feb 22
KIX
Osaka
SEA
Seattle
￥124,121 Roundtrip, found 9 hours ago
￥124,121
Roundtrip
found 9 hours ago
Select Korean Air flight, departing Thu, Jan 22 from Osaka to Seattle, returning Sun, Feb 22, priced at ￥124,121 found 9 hours ago
Korean Air
Tue, Jan 27 - Tue, Feb 3
UKB
Kobe
SEA
Seattle
￥125,225 Roundtrip, found 2 days ago
￥125,225
Roundtrip
found 2 days ago
Select Korean Air flight, departing Tue, Jan 27 from Kobe to Seattle, returning Tue, Feb 3, priced at ￥125,225 found 2 days ago
STARLUX Airlines
Thu, Jan 15 - Fri, Jan 16
UKB
Kobe
SEA
Seattle
￥129,040 Roundtrip, found 5 days ago
￥129,040
Roundtrip
found 5 days ago
Select STARLUX Airlines flight, departing Thu, Jan 15 from Kobe to Seattle, returning Fri, Jan 16, priced at ￥129,040 found 5 days ago
Philippine Airlines
Thu, Jun 11 - Thu, Jun 18
KIX
Osaka
SEA
Seattle
￥129,148 Roundtrip, found 1 hour ago
￥129,148
Roundtrip
found 1 hour ago
Select Philippine Airlines flight, departing Thu, Jun 11 from Osaka to Seattle, returning Thu, Jun 18, priced at ￥129,148 found 1 hour ago
EVA Airways
Fri, Apr 24 - Sun, May 3
KIX
Osaka
SEA
Seattle
￥131,410 Roundtrip, found 1 hour ago
￥131,410
Roundtrip
found 1 hour ago
Select EVA Airways flight, departing Fri, Apr 24 from Osaka to Seattle, returning Sun, May 3, priced at ￥131,410 found 1 hour ago

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

October is typically the cheapest month to fly

From ￥102,015 - ￥151,781 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from ￥170,030
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from ￥170,030
Flights from Osaka (KIX) to Seattle (SEA)
Origin airport
Kansai Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Hawaiian Airlines, Japan Airlines, Korean Air, Philippine Airlines, Qatar Airways, STARLUX Airlines, Singapore Airlines, Turkish Airlines, United
Roundtrip price
￥95,030
Distance
8044 km

Osaka to Seattle Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Osaka to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Seattle.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with OSA to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind Osaka for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Osaka (OSA-All Airports) to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Osaka (OSA-All Airports) and Seattle - Tacoma Intl. Airport (SEA) was ￥95,030. Great fares don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Osaka (OSA-All Airports) to SEA?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Osaka (OSA-All Airports) to Seattle - Tacoma Intl. Airport (SEA) 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 Osaka (OSA-All Airports) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Osaka (OSA-All Airports) to Seattle - Tacoma Intl. Airport (SEA)?
Make the 16 hours and 14 minutes between Osaka (OSA-All Airports) and Sea-Tac Airport as comfortable as possible. Bring the essentials, like a neck pillow, your toothbrush and warm clothes, and sit back and enjoy the flight!
How far is the flight from Osaka (OSA-All Airports) to SEA?
The distance is around 8,100 kilometers. Eye mask? Check. Toothbrush? Check. You'd be wise to pack all the essentials for this long-haul Japan to SeaTac flight.
Which airlines fly direct from Osaka (OSA-All Airports) to SEA?
If you want to travel straight from Osaka (OSA-All Airports) to Seattle - Tacoma Intl. Airport (SEA), you'll have to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly between these airports.
Are Osaka (OSA-All Airports) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Osaka (OSA-All Airports) to Seattle - Tacoma Intl. Airport (SEA) last minute could save you some cash. However, it might cost you a whole lot more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.
Can I fly from Osaka (OSA-All Airports) to SEA right now?
To see what travel restrictions and quarantine requirements are in place for different citizens flying from Osaka (OSA-All Airports) to Sea-Tac Airport please visit our COVID 19 travel advisor portal link.

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