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

Tokyo (HND) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Tokyo (HND) offer the lowest average round-trip price of $719.

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

Flights connecting via Tokyo (HND) have the shortest average one-way travel time: 13h 18m.

What airlines fly to Osaka?

ANA, Japan Airlines and Air Canada are the top three most popular airlines that fly to Osaka from Seattle according to our data. ANA is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 5 different airlines that fly to Osaka on a routine basis, so you have a few additional options to choose from.

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

Cathay Pacific, ANA, and Japan Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Osaka

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

Vancouver (YVR) has the shortest average layover time for this route: 1h 38m.

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

Prices for flights from Seattle/Tacoma Intl Airport to Osaka are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Osaka?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Osaka is 5 as of October 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Osaka.

What documentation or ID do you need to fly to Osaka?

The travel and health documents you'll need for your trip to Osaka may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$407 Cheap Flights from Seattle to Osaka in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Osaka

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:25 am - 6:20 amSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

26h 55m1 stop Hong Kong Intl

9:15 pm - 8:45 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

28h 30m1 stop Hong Kong Intl

$840Cathay Pacific

Mon, Oct 26 - Wed, Nov 11

11:25 am - 6:20 amSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

26h 55m1 stop Hong Kong Intl

9:15 pm - 8:45 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

28h 30m1 stop Hong Kong Intl

$840Cathay Pacific

Mon, Oct 26 - Tue, Nov 10

12:10 am - 11:35 amSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

18h 25m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 6:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

22h 25m1 stop Taipei City Taiwan Taoyuan Intl

$906China Airlines

Sun, Nov 15 - Mon, Nov 23

7:05 pm - 5:40 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

29h 35m1 stop Vancouver Intl

7:25 pm - 2:37 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

12h 12m1 stop Vancouver Intl

$916Air Canada

Sat, Feb 13 - Mon, Feb 22

10:10 am - 5:40 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

14h 30m1 stop Vancouver Intl

7:25 pm - 9:32 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

31h 07m1 stop Vancouver Intl

$926Air Canada

Wed, Feb 3 - Wed, Feb 24

12:10 am - 5:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

24h 40m1 stop Taipei City Taiwan Taoyuan Intl

7:00 pm - 6:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

16h 10m1 stop Taipei City Taiwan Taoyuan Intl

$934China Airlines

Sun, Nov 29 - Sun, Feb 21

12:15 pm - 7:55 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

14h 40m1 stop Tokyo Narita

2:40 pm - 10:05 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 25m1 stop Tokyo Narita

$974Japan Airlines

Wed, Jan 20 - Wed, Jan 27

12:15 pm - 7:55 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

14h 40m1 stop Tokyo Narita

2:40 pm - 10:05 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 25m1 stop Tokyo Narita

$974Japan Airlines

Wed, Feb 3 - Wed, Feb 24

7:00 am - 7:00 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

20h 00m2 stops San Francisco Tokyo Narita

5:50 pm - 1:20 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 30m1 stop Tokyo Haneda

$993ANA

Tue, Oct 27 - Tue, Nov 3

7:00 am - 7:00 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

20h 00m2 stops San Francisco Tokyo Narita

5:50 pm - 1:20 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 30m1 stop Tokyo Haneda

$999ANA

Tue, Oct 27 - Wed, Nov 4

Cheap last minute flights

Enter your travel dates to find the best prices.

1:15 am - 12:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

19h 35m1 stop Taipei City Taiwan Taoyuan Intl

7:00 pm - 6:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

16h 10m1 stop Taipei City Taiwan Taoyuan Intl

$980China Airlines

Mon, Oct 5 - Tue, Nov 10

7:11 am - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

15h 39m1 stop San Francisco

9:45 am - 1:20 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

20h 35m1 stop Tokyo Haneda

$1,007ANA

Tue, Oct 6 - Tue, Nov 10

6:10 am - 6:45 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

20h 35m1 stop Los Angeles

2:20 pm - 9:00 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

34h 40m1 stop Beijing Capital

$1,030Multiple Airlines

Wed, Oct 7 - Mon, Oct 12

1:15 am - 10:30 amSEA Seattle/Tacoma Intl-UKB Kobe

17h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 4:10 pmUKB Kobe-SEA Seattle/Tacoma Intl

19h 25m1 stop Taipei City Taiwan Taoyuan Intl

$1,049STARLUX Airlines

Tue, Oct 6 - Mon, Oct 12

1:15 am - 12:15 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

19h 00m1 stop Taipei City Taiwan Taoyuan Intl

1:25 pm - 4:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

18h 45m1 stop Taipei City Taiwan Taoyuan Intl

$1,054STARLUX Airlines

Tue, Oct 6 - Mon, Oct 12

7:10 am - 6:45 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

19h 35m1 stop Los Angeles

2:40 pm - 5:21 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

19h 41m2 stops Tokyo Haneda San Francisco

$1,055Japan Airlines

Tue, Oct 6 - Tue, Nov 10

8:29 pm - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

26h 21m1 stop San Francisco

9:00 pm - 1:20 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

33h 20m1 stop Tokyo Haneda

$1,061ANA

Mon, Oct 5 - Sun, Nov 29

1:15 am - 6:05 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

24h 50m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 6:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

22h 25m1 stop Taipei City Taiwan Taoyuan Intl

$1,066China Airlines

Mon, Oct 5 - Tue, Nov 10

7:10 am - 6:45 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

19h 35m1 stop Los Angeles

2:40 pm - 5:21 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

19h 41m2 stops Tokyo Haneda San Francisco

$1,071Japan Airlines

Tue, Oct 6 - Tue, Nov 10

7:11 am - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

15h 39m1 stop San Francisco

6:45 am - 1:20 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

23h 35m1 stop Tokyo Haneda

$1,099ANA

Tue, Oct 6 - Tue, Nov 10

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China Airlines flights from Seattle to Osaka

Our best China Airlines deals on Seattle to Osaka flight tickets

China Airlines

Nov 15

SEA12:10 amSeattle/Tacoma Intl

18h 25m

1 stop

KIX11:35 amOsaka Kansai Intl

Nov 23

KIX12:45 pmOsaka Kansai Intl

22h 25m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$906

China Airlines

Nov 29

SEA12:10 amSeattle/Tacoma Intl

24h 40m

1 stop

KIX5:50 pmOsaka Kansai Intl

Feb 21

KIX7:00 pmOsaka Kansai Intl

16h 10m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$934

China Airlines

Oct 12

SEA1:15 amSeattle/Tacoma Intl

24h 50m

1 stop

KIX6:05 pmOsaka Kansai Intl

Oct 27

KIX7:00 pmOsaka Kansai Intl

16h 10m

1 stop

SEA7:10 pmSeattle/Tacoma Intl

$967

Cathay Pacific flights from Seattle to Osaka

Our best Cathay Pacific deals on Seattle to Osaka flight tickets

Cathay Pacific

Oct 26

SEA11:25 amSeattle/Tacoma Intl

26h 55m

1 stop

KIX6:20 amOsaka Kansai Intl

Nov 11

KIX9:15 pmOsaka Kansai Intl

28h 30m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$840

Cathay Pacific

Jan 11

SEA10:25 amSeattle/Tacoma Intl

26h 55m

1 stop

KIX6:20 amOsaka Kansai Intl

Feb 22

KIX9:50 amOsaka Kansai Intl

39h 55m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$854

Cathay Pacific

Oct 19

SEA11:45 amSeattle/Tacoma Intl

38h 20m

1 stop

KIX6:05 pmOsaka Kansai Intl

Nov 1

KIX5:00 pmOsaka Kansai Intl

32h 45m

1 stop

SEA9:45 amSeattle/Tacoma Intl

$856

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 10/26

11:25 am-6:20 am

1 stop26h 55m

Osaka Kansai Intl

Wed 11/11

9:15 pm-8:45 am

1 stop28h 30m

$840

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 10/26

11:25 am-6:20 am

1 stop26h 55m

Osaka Kansai Intl

Tue 11/10

9:15 pm-8:45 am

1 stop28h 30m

$840

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 11/15

12:10 am-11:35 am

1 stop18h 25m

Osaka Kansai Intl

Mon 11/23

12:45 pm-6:10 pm

1 stop22h 25m

$906

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sat 2/13

7:05 pm-5:40 pm

1 stop29h 35m

Osaka Kansai Intl

Mon 2/22

7:25 pm-2:37 pm

1 stop12h 12m

$916

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Wed 2/3

10:10 am-5:40 pm

1 stop14h 30m

Osaka Kansai Intl

Wed 2/24

7:25 pm-9:32 am

1 stop31h 07m

$926

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 11/29

12:10 am-5:50 pm

1 stop24h 40m

Osaka Kansai Intl

Sun 2/21

7:00 pm-6:10 pm

1 stop16h 10m

$934

Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/20

12:15 pm-7:55 pm

1 stop14h 40m

Osaka Itami

Wed 1/27

2:40 pm-10:05 am

1 stop12h 25m

$974

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 2/3

12:15 pm-7:55 pm

1 stop14h 40m

Osaka Itami

Wed 2/24

2:40 pm-10:05 am

1 stop12h 25m

$974

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 10/27

7:00 am-7:00 pm

2 stops20h 00m

Osaka Itami

Tue 11/3

5:50 pm-1:20 pm

1 stop12h 30m

$993

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 10/27

7:00 am-7:00 pm

2 stops20h 00m

Osaka Itami

Wed 11/4

5:50 pm-1:20 pm

1 stop12h 30m

$999

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 Seattle to Osaka

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 Seattle and Osaka?

Prices are currently typical for flights on this route.

Typical prices usually range from $825 to $1,124.
The lowest price recently found on this route was $840.

What is the cheapest month to fly to Osaka?

In general, February is the cheapest month to fly from Seattle to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $747. If you are unable to visit Osaka during the month of February, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around $747.

Can stopping save me money on Seattle to Osaka flights?

You could potentially save up to 41% on your flight if you consider stops on a Seattle to Osaka flight.

How have Seattle to Osaka flight prices changed over time?

As of October 2026, prices for Seattle to Osaka flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Osaka

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

Estimated round-trip price

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

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

Best Price Found	$407
Fastest flight time	13h 15m
Direct flights	None

The best one-way flight to Osaka from Seattle in the past 72 hours is $407. The best round-trip flight deal from Seattle to Osaka found on momondo in the last 72 hours is $840.

The fastest flight from Seattle to Osaka takes 13h 15m

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

Search flight deals

Frequently asked questions about flying from Seattle to Osaka

How far is Seattle/Tacoma Intl to Osaka by plane?
The distance between Seattle/Tacoma Intl and Osaka is about 4994.7 mi. Flights usually cover this in 13h 15m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Osaka?
Prices for flights from Seattle/Tacoma Intl Airport to Osaka are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Osaka?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Osaka is 5 as of October 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Osaka?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Osaka.
What documentation or ID do you need to fly to Osaka?
The travel and health documents you'll need for your trip to Osaka may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Osaka?
momondo data reveals that the most frequently booked airline on the route from Seattle to Osaka is ANA, representing 38% of all bookings. The subsequent popular airlines are Japan Airlines at 14%, Asiana Airlines at 10%, and Air Canada at 9%.

Best airlines flying from Seattle to Osaka

Compare and see reviews for airlines that fly from Seattle to Osaka with momondo

Airline	Rating	Free Cancellation	Price
Asiana Airlines	PriceFrom $565	Free Cancellation	Rating 8.1 563 reviews	Search Asiana Airlines flights
ANA	PriceFrom $649	Free Cancellation	Rating 8.3 1,319 reviews	Search ANA flights
Japan Airlines	PriceFrom $708	Free Cancellation	Rating 8.3 1,932 reviews	Search Japan Airlines flights
Air Canada	PriceFrom $862	Free Cancellation	Rating 7.1 11,716 reviews	Search Air Canada flights
China Airlines	PriceFrom $915	Free Cancellation	Rating 8.3 847 reviews	Search China Airlines flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Osaka. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Seattle to Osaka flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Seattle and Osaka by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Seattle to Osaka now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Osaka and let you know when they change.

An easier way to manage your Osaka trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Nearby airports

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Complete your trip

Feeling lucky

Fly into one of these airports located in Osaka

Osaka Itami Airport

Osaka Kansai Intl Airport

Cheap flights from Seattle to Osaka from $407

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Osaka departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Osaka

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Cheap last minute flights

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China Airlines flights from Seattle to Osaka

Our best China Airlines deals on Seattle to Osaka flight tickets

Cathay Pacific flights from Seattle to Osaka

Our best Cathay Pacific deals on Seattle to Osaka flight tickets

momondo Fare Finder

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See travel insights to Osaka from

How to get the cheapest flight ticket from Seattle to Osaka

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

What is the cheapest month to fly to Osaka?

Can stopping save me money on Seattle to Osaka flights?

How have Seattle to Osaka flight prices changed over time?

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

What airlines fly to Osaka?

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

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

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

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

When to book flights from Seattle to Osaka

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Osaka

Best airlines flying from Seattle to Osaka

Compare and see reviews for airlines that fly from Seattle to Osaka with momondo

Traveling to a place near Osaka?

Why use momondo?

An easier way to manage your Osaka trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Japan

Fly into one of these airports located in Osaka

Airports listed have a maximum distance of 22.5 mi from Osaka

Fly your favorite airline to Osaka

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Osaka

List of cabin classes available on flights landing in Osaka. Availability may vary depending on flight origin and airline.

Popular cities in Japan

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Osaka

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According to popular flight searches on momondo this year