What is the cheapest airline that flies from Osaka to Seattle/Tacoma Intl?

Air Canada, Delta, and Philippine Airlines are the most popular carriers operating from Osaka to Seattle/Tacoma Intl

Which layover airport has the shortest connection time from Osaka to Seattle?

Taipei City (TPE) has the shortest average layover time for this route: 2h 23m.

Which layover airport offers the lowest fares from Osaka to Seattle?

Flights via Taipei City (TPE) offer the lowest average round-trip price of $911.

Which layover airport has the shortest travel time from Osaka to Seattle?

Flights connecting via Incheon (ICN) have the shortest average one-way travel time: 17h 00m.

Which airport is the most popular layover for flights between Osaka and Seattle?

Honolulu (HNL) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Osaka to Seattle/Tacoma Intl Airport?

Prices for flights from Osaka to Seattle/Tacoma Intl Airport refresh daily.

How old do you have to be to fly from Osaka to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Osaka to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$365 Cheap Flights from Osaka to Seattle in 2025/26

Q: What is the typical price of a round-trip flight between Osaka and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $1,082 to $1,291. The lowest price recently found on this route was $545.

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Find the cheapest flights from Osaka to Seattle

Round-trip

One-way

Cheap round-trip flights

12:10 pm - 12:30 pmKIX-SEA

16h 20m1 stop

2:15 pm - 10:50 pmSEA-KIX

16h 35m1 stop

$545Multiple Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

12:10 pm - 12:30 pmKIX-SEA

16h 20m1 stop

2:15 pm - 10:50 pmSEA-KIX

16h 35m1 stop

$551Multiple Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

6:05 pm - 10:31 pmKIX-SEA

20h 26m1 stop

2:55 pm - 4:25 pmSEA-KIX

33h 30m1 stop

$688Air Canada

Find Deal

Tue, Oct 14 - Tue, Oct 21

6:05 pm - 2:16 pmKIX-SEA

12h 11m1 stop

7:15 pm - 4:25 pmSEA-KIX

29h 10m1 stop

$689Air Canada

Find Deal

Mon, Sep 29 - Tue, Oct 21

10:20 am - 7:15 pmKIX-SEA

24h 55m1 stop

10:30 pm - 2:05 pmSEA-KIX

23h 35m1 stop

$733Philippine Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 29

10:15 am - 6:40 pmKIX-SEA

25h 25m1 stop

9:30 pm - 2:05 pmSEA-KIX

23h 35m1 stop

$781Philippine Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

1:10 pm - 7:30 pmKIX-SEA

22h 20m1 stop

1:30 am - 10:10 amSEA-KIX

16h 40m1 stop

$860EVA Air

Find Deal

Mon, Sep 29 - Mon, Oct 20

12:55 pm - 6:10 pmKIX-SEA

22h 15m1 stop

12:10 am - 11:55 amSEA-KIX

18h 45m1 stop

$887EVA Air

Find Deal

Sat, Nov 15 - Thu, Nov 20

7:00 pm - 6:36 pmITM-SEA

15h 36m2 stops

4:30 pm - 7:25 amSEA-ITM

22h 55m1 stop

$1,595ANA

Find Deal

Thu, Oct 9 - Thu, Oct 16

4:00 pm - 1:20 pmITM-SEA

14h 20m1 stop

3:45 pm - 10:10 amSEA-ITM

25h 25m1 stop

$1,631ANA

Find Deal

Mon, Jan 12 - Tue, Jan 20

American Airlines flights from Osaka to Seattle

Our best American Airlines deals on Osaka to Seattle flight tickets

American Airlines

Oct 14

ITM7:30 amOsaka Itami

28h 55m

2 stops

SEA8:25 pmSeattle/Tacoma Intl

Oct 18

SEA7:40 amSeattle/Tacoma Intl

35h 55m

2 stops

ITM11:35 amOsaka Itami

$1,219

Find similar

American Airlines

Oct 29

ITM4:30 pmOsaka Itami

19h 55m

2 stops

SEA8:25 pmSeattle/Tacoma Intl

Nov 5

SEA6:05 amSeattle/Tacoma Intl

19h 40m

2 stops

ITM6:45 pmOsaka Itami

$1,226

Find similar

American Airlines

Nov 19

ITM2:40 pmOsaka Itami

12h 10m

1 stop

SEA9:50 amSeattle/Tacoma Intl

Nov 25

SEA12:10 pmSeattle/Tacoma Intl

14h 40m

1 stop

ITM7:50 pmOsaka Itami

$1,515

Find similar

Asiana Airlines flights from Osaka to Seattle

Our best Asiana Airlines deals on Osaka to Seattle flight tickets

Asiana Airlines

Nov 20

KIX10:50 amOsaka Kansai Intl

20h 05m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

Nov 23

SEA12:10 amSeattle/Tacoma Intl

16h 30m

1 stop

KIX9:40 amOsaka Kansai Intl

$746

Find similar

Asiana Airlines

Nov 13

KIX10:50 amOsaka Kansai Intl

20h 05m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

Nov 16

SEA12:10 amSeattle/Tacoma Intl

27h 45m

1 stop

KIX8:55 pmOsaka Kansai Intl

$760

Find similar

Asiana Airlines

Nov 13

KIX10:50 amOsaka Kansai Intl

20h 05m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

Nov 16

SEA12:10 amSeattle/Tacoma Intl

27h 45m

1 stop

KIX8:55 pmOsaka Kansai Intl

$812

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/14

12:10 pm-12:30 pm

1 stop16h 20m

Seattle/Tacoma Intl

Tue 10/21

2:15 pm-10:50 pm

1 stop16h 35m

$545

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/14

12:10 pm-12:30 pm

1 stop16h 20m

Seattle/Tacoma Intl

Tue 10/21

2:15 pm-10:50 pm

1 stop16h 35m

$551

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 10/14

6:05 pm-10:31 pm

1 stop20h 26m

Seattle/Tacoma Intl

Tue 10/21

2:55 pm-4:25 pm

1 stop33h 30m

$688

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 9/29

6:05 pm-2:16 pm

1 stop12h 11m

Seattle/Tacoma Intl

Tue 10/21

7:15 pm-4:25 pm

1 stop29h 10m

$689

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 10/8

10:20 am-7:15 pm

1 stop24h 55m

Seattle/Tacoma Intl

Wed 10/29

10:30 pm-2:05 pm

1 stop23h 35m

$733

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 11/19

10:15 am-6:40 pm

1 stop25h 25m

Seattle/Tacoma Intl

Sun 11/23

9:30 pm-2:05 pm

1 stop23h 35m

$781

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 9/29

1:10 pm-7:30 pm

1 stop22h 20m

Seattle/Tacoma Intl

Mon 10/20

1:30 am-10:10 am

1 stop16h 40m

$860

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 11/15

12:55 pm-6:10 pm

1 stop22h 15m

Seattle/Tacoma Intl

Thu 11/20

12:10 am-11:55 am

1 stop18h 45m

$887

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Thu 10/9

7:00 pm-6:36 pm

2 stops15h 36m

Seattle/Tacoma Intl

Thu 10/16

4:30 pm-7:25 am

1 stop22h 55m

$1,595

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Mon 1/12

4:00 pm-1:20 pm

1 stop14h 20m

Seattle/Tacoma Intl

Tue 1/20

3:45 pm-10:10 am

1 stop25h 25m

$1,631

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Osaka to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Osaka and Seattle?

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Osaka is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $916. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Osaka because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,184.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Osaka in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,034 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $1,134. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How have Osaka to Seattle flight prices changed over time?

As of September 2025, prices for Osaka to Seattle flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Osaka to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Osaka to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Osaka to Seattle (OSA to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Osaka to Seattle

Direct flights	None

There are no direct flights from Osaka to Seattle. There are no popular flight routes from Osaka to Seattle.

Search flight deals

How far is Osaka to Seattle/Tacoma Intl by plane?
The straight-line distance from Osaka to Seattle/Tacoma Intl is 4994.7 mi. By plane, this route typically takes 11h 45m.
When did momondo last update prices for flights from Osaka to Seattle/Tacoma Intl Airport?
Prices for flights from Osaka to Seattle/Tacoma Intl Airport refresh daily.
How old do you have to be to fly from Osaka to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Osaka to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Osaka to Seattle?
momondo data reveals that the most frequently booked airline on the route from Osaka to Seattle is ANA, representing 52% of all bookings. The subsequent popular airline is EVA Air at 48%.

Leavenworth

Tacoma

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

Redmond

Westport

Why use momondo?

Why should I use momondo to find a flight deal from Osaka to Seattle?

Finding the right flight to Seattle from Osaka is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Osaka to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Osaka which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Osaka to Seattle?

Once you have performed a search for Osaka to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Osaka to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Osaka to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.