Cheap Flights from Osaka (OSA) to Seattle (SEA) from HK$2,844~

View HK$2,844 flight on Mon, 13 Oct 2025Opens in a new window

Popular airlines from Osaka to Seattle, WA (SEA-Seattle - Tacoma Intl.)

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

Prices were available within the past 7 days and start at HK$2,844 for one-way flights and HK$5,930 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Mon, 1 Dec - Mon, 29 Dec
KIX
Osaka
SEA
Seattle
HK$5,930 Return, found 23 hours ago
HK$5,930
Return
found 23 hours ago
Select Asiana Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Mon, 29 Dec, priced at HK$5,930 found 23 hours ago
Asiana Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$6,430 Return, found 23 hours ago
HK$6,430
Return
found 23 hours ago
Select Asiana Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$6,430 found 23 hours ago
STARLUX Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$6,567 Return, found 23 hours ago
HK$6,567
Return
found 23 hours ago
Select STARLUX Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$6,567 found 23 hours ago
China Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$6,960 Return, found 23 hours ago
HK$6,960
Return
found 23 hours ago
Select China Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$6,960 found 23 hours ago
Asiana Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$7,240 Return, found 23 hours ago
HK$7,240
Return
found 23 hours ago
Select Asiana Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$7,240 found 23 hours ago
STARLUX Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$7,281 Return, found 23 hours ago
HK$7,281
Return
found 23 hours ago
Select STARLUX Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$7,281 found 23 hours ago
Asiana Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$7,303 Return, found 23 hours ago
HK$7,303
Return
found 23 hours ago
Select Asiana Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$7,303 found 23 hours ago
Korean Air
Mon, 1 Dec - Mon, 29 Dec
KIX
Osaka
SEA
Seattle
HK$7,308 Return, found 23 hours ago
HK$7,308
Return
found 23 hours ago
Select Korean Air flight, departing Mon, 1 Dec from Osaka to Seattle, returning Mon, 29 Dec, priced at HK$7,308 found 23 hours ago
Asiana Airlines
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$7,310 Return, found 23 hours ago
HK$7,310
Return
found 23 hours ago
Select Asiana Airlines flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$7,310 found 23 hours ago
EVA Airways
Mon, 1 Dec - Fri, 5 Dec
KIX
Osaka
SEA
Seattle
HK$7,467 Return, found 23 hours ago
HK$7,467
Return
found 23 hours ago
Select EVA Airways flight, departing Mon, 1 Dec from Osaka to Seattle, returning Fri, 5 Dec, priced at HK$7,467 found 23 hours ago

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

May is typically the cheapest month to fly

From HK$5,395 - HK$8,591 per traveller.
Osaka to Seattle route information
Origin airport
Kansai Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Japan Airlines, Korean Air, United
Return price
HK$5,930
Distance
8044 km

Flights from Hyogo Prefecture to Seattle

Book cheap flights from Hyogo Prefecture (OSA) to Seattle (SEA) 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 Hyogo Prefecture (OSA) to Seattle (SEA) 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 Hyogo Prefecture (OSA) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$2,844 now!

 

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 HK$5,930. 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 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.

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