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

Flights connecting via Tokyo (HND) have the shortest average one-way travel time: 12h 20m.

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

Taipei City (TPE) was the most common stop: 81% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Incheon (ICN) offer the lowest average round-trip price of $750.

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

Tokyo (HND) has the shortest average layover time for this route: 1h 53m.

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

Hainan Airlines is the most popular carrier operating from Osaka to Seattle/Tacoma Intl

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.

$325 Cheap Flights from Osaka to Seattle in 2025/26

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One-way

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9:00 am - 1:20 pm

KIX

SEA

21h 20m1 stop

11:25 am - 8:45 pm

SEA

KIX

16h 20m1 stop

$683Delta

jeu., janv. 29 - jeu., févr. 5

7:25 pm - 10:51 pm

KIX

SEA

20h 26m1 stop

10:05 am - 5:40 pm

SEA

KIX

15h 35m1 stop

$699Air Canada

mar., mars 3 - mer., mars 18

8:45 pm - 3:43 pm

KIX

SEA

35h 58m1 stop

3:45 pm - 6:45 pm

SEA

KIX

34h 00m1 stop

$736Alaska Airlines

sam., janv. 31 - sam., févr. 7

10:50 am - 7:16 pm

KIX

SEA

25h 26m2 stops

5:50 am - 8:35 pm

SEA

KIX

21h 45m2 stops

$770Multiple Airlines

lun., janv. 26 - jeu., janv. 29

2:35 pm - 8:00 am

KIX

SEA

34h 25m1 stop

5:50 am - 8:35 pm

SEA

KIX

21h 45m2 stops

$783Multiple Airlines

lun., janv. 26 - jeu., janv. 29

9:00 am - 1:55 pm

KIX

SEA

21h 55m1 stop

12:10 am - 8:45 pm

SEA

KIX

27h 35m1 stop

$804Multiple Airlines

lun., janv. 26 - mer., janv. 28

1:40 pm - 7:22 pm

ITM

SEA

22h 42m2 stops

6:38 pm - 8:40 am

SEA

ITM

21h 02m2 stops

$809American Airlines

ven., janv. 23 - mar., janv. 27

4:30 pm - 11:59 pm

ITM

SEA

24h 29m2 stops

6:38 pm - 8:40 am

SEA

ITM

21h 02m2 stops

$812American Airlines

ven., janv. 23 - mar., janv. 27

9:00 am - 1:55 pm

KIX

SEA

21h 55m1 stop

12:10 am - 8:55 pm

SEA

KIX

27h 45m1 stop

$814Asiana Airlines

sam., janv. 31 - ven., févr. 6

9:00 am - 1:55 pm

KIX

SEA

21h 55m1 stop

12:10 am - 6:05 pm

SEA

KIX

24h 55m1 stop

$817Asiana Airlines

sam., janv. 31 - ven., févr. 6

Air Canada flights from Osaka to Seattle

Our best Air Canada deals on Osaka to Seattle flight tickets

Air Canada

Mar 3

KIX7:25 pmOsaka Kansai Intl

20h 26m

1 stop

SEA10:51 pmSeattle/Tacoma Intl

Mar 18

SEA10:05 amSeattle/Tacoma Intl

15h 35m

1 stop

KIX5:40 pmOsaka Kansai Intl

$699

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Air Canada

May 13

KIX8:30 amOsaka Kansai Intl

21h 50m

2 stops

SEA2:20 pmSeattle/Tacoma Intl

May 28

SEA3:00 pmSeattle/Tacoma Intl

33h 25m

1 stop

KIX4:25 pmOsaka Kansai Intl

$2,118

Find similar

Air Canada

May 14

KIX6:00 pmOsaka Kansai Intl

12h 20m

1 stop

SEA2:20 pmSeattle/Tacoma Intl

May 29

SEA5:40 amSeattle/Tacoma Intl

21h 50m

2 stops

KIX7:30 pmOsaka Kansai Intl

$2,230

Find similar

Alaska Airlines flights from Osaka to Seattle

Our best Alaska Airlines deals on Osaka to Seattle flight tickets

Alaska Airlines

Jan 31

KIX8:45 pmOsaka Kansai Intl

35h 58m

1 stop

SEA3:43 pmSeattle/Tacoma Intl

Feb 7

SEA3:45 pmSeattle/Tacoma Intl

34h 00m

1 stop

KIX6:45 pmOsaka Kansai Intl

$736

Find similar

Alaska Airlines

Jan 1

KIX8:45 pmOsaka Kansai Intl

27h 55m

1 stop

SEA7:40 amSeattle/Tacoma Intl

Jan 5

SEA5:50 pmSeattle/Tacoma Intl

31h 55m

1 stop

KIX6:45 pmOsaka Kansai Intl

$1,671

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

jeu. 1/29

9:00 am-1:20 pm

1 stop21h 20m

Seattle/Tacoma Intl

jeu. 2/5

11:25 am-8:45 pm

1 stop16h 20m

$683

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

mar. 3/3

7:25 pm-10:51 pm

1 stop20h 26m

Seattle/Tacoma Intl

mer. 3/18

10:05 am-5:40 pm

1 stop15h 35m

$699

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sam. 1/31

8:45 pm-3:43 pm

1 stop35h 58m

Seattle/Tacoma Intl

sam. 2/7

3:45 pm-6:45 pm

1 stop34h 00m

$736

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

lun. 1/26

10:50 am-7:16 pm

2 stops25h 26m

Seattle/Tacoma Intl

jeu. 1/29

5:50 am-8:35 pm

2 stops21h 45m

$770

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

lun. 1/26

2:35 pm-8:00 am

1 stop34h 25m

Seattle/Tacoma Intl

jeu. 1/29

5:50 am-8:35 pm

2 stops21h 45m

$783

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

lun. 1/26

9:00 am-1:55 pm

1 stop21h 55m

Seattle/Tacoma Intl

mer. 1/28

12:10 am-8:45 pm

1 stop27h 35m

$804

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

ven. 1/23

1:40 pm-7:22 pm

2 stops22h 42m

Seattle/Tacoma Intl

mar. 1/27

6:38 pm-8:40 am

2 stops21h 02m

$809

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

ven. 1/23

4:30 pm-11:59 pm

2 stops24h 29m

Seattle/Tacoma Intl

mar. 1/27

6:38 pm-8:40 am

2 stops21h 02m

$812

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sam. 1/31

9:00 am-1:55 pm

1 stop21h 55m

Seattle/Tacoma Intl

ven. 2/6

12:10 am-8:55 pm

1 stop27h 45m

$814

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

sam. 1/31

9:00 am-1:55 pm

1 stop21h 55m

Seattle/Tacoma Intl

ven. 2/6

12:10 am-6:05 pm

1 stop24h 55m

$817

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 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 December 2025, prices for Osaka to Seattle flights are approximately 18% cheaper 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

Fastest flight time	16h 09m
Direct flights	None

The fastest flight from Osaka to Seattle takes 16h 09m

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

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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 16h 09m.
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 STARLUX Airlines, representing 53% of all bookings. The subsequent popular airlines are ANA at 25% and EVA Air at 22%.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Centralia

Westport

Kirkland

Shoreline

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.