Cheap Flights from Osaka (OSA) to Seattle (SEA) from HK$3,925~

View HK$3,925 flight on Fri, 6 Feb 2026Opens 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$3,925 for one-way flights and HK$6,390 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Fri, 6 Feb - Sun, 15 Feb
KIX
Osaka
SEA
Seattle
HK$6,390 Return, found 5 days ago
HK$6,390
Return
found 5 days ago
Select Philippine Airlines flight, departing Fri, 6 Feb from Osaka to Seattle, returning Sun, 15 Feb, priced at HK$6,390 found 5 days ago
STARLUX Airlines
Fri, 6 Feb - Sun, 15 Feb
KIX
Osaka
SEA
Seattle
HK$6,635 Return, found 5 days ago
HK$6,635
Return
found 5 days ago
Select STARLUX Airlines flight, departing Fri, 6 Feb from Osaka to Seattle, returning Sun, 15 Feb, priced at HK$6,635 found 5 days ago
STARLUX Airlines
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$6,645 Return, found 22 hours ago
HK$6,645
Return
found 22 hours ago
Select STARLUX Airlines flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$6,645 found 22 hours ago
American Airlines
Fri, 6 Feb - Sun, 15 Feb
ITM
Osaka
SEA
Seattle
HK$7,082 Return, found 5 days ago
HK$7,082
Return
found 5 days ago
Select American Airlines flight, departing Fri, 6 Feb from Osaka to Seattle, returning Sun, 15 Feb, priced at HK$7,082 found 5 days ago
EVA Airways
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$7,093 Return, found 22 hours ago
HK$7,093
Return
found 22 hours ago
Select EVA Airways flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$7,093 found 22 hours ago
Philippine Airlines
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$7,130 Return, found 22 hours ago
HK$7,130
Return
found 22 hours ago
Select Philippine Airlines flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$7,130 found 22 hours ago
Philippine Airlines
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$7,169 Return, found 22 hours ago
HK$7,169
Return
found 22 hours ago
Select Philippine Airlines flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$7,169 found 22 hours ago
All Nippon Airways
Fri, 6 Feb - Sun, 15 Feb
ITM
Osaka
SEA
Seattle
HK$7,181 Return, found 5 days ago
HK$7,181
Return
found 5 days ago
Select All Nippon Airways flight, departing Fri, 6 Feb from Osaka to Seattle, returning Sun, 15 Feb, priced at HK$7,181 found 5 days ago
Philippine Airlines
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$7,210 Return, found 22 hours ago
HK$7,210
Return
found 22 hours ago
Select Philippine Airlines flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$7,210 found 22 hours ago
Asiana Airlines
Wed, 10 Sep - Sat, 13 Sep
KIX
Osaka
SEA
Seattle
HK$7,212 Return, found 22 hours ago
HK$7,212
Return
found 22 hours ago
Select Asiana Airlines flight, departing Wed, 10 Sep from Osaka to Seattle, returning Sat, 13 Sep, priced at HK$7,212 found 22 hours ago

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

May is typically the cheapest month to fly

From HK$5,316 - HK$8,658 per traveller.

Graph displaying average flight prices per month

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, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, United
Return price
HK$6,390
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$3,925 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$6,390. 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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