How long does it take to fly to Osaka?

Average flight duration from State of Washington to Osaka depends on which airport you fly into and out of. Flying from Seattle to Osaka Kansai Intl Airport is 15h 25m on average, while flying from Pasco to Osaka Kansai Intl Airport is 36h 30m on average. Osaka Kansai Intl Airport is the most popular airport in Osaka.

What is the cheapest airline that flies from Washington to Osaka?

China Airlines, ANA, and United Airlines are the most popular carriers operating from Washington to Osaka

What airlines fly to Osaka?

ANA, Japan Airlines and Air Canada are the top three most popular airlines that fly to Osaka from State of Washington 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.

When did momondo last update prices for flights from Washington to Osaka?

Prices for flights from Washington to Osaka are updated daily.

How many operators does momondo search for flights from Washington to Osaka?

There are 5 operators available for flights from Washington to Osaka as of October 2026.

How old do you have to be to fly from Washington to Osaka?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

$409 Cheap Flights from Washington to Osaka in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington 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 - Tue, Nov 10

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

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

14h 30m1 stop Vancouver Intl

7:25 pm - 2:35 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

12h 10m1 stop Vancouver Intl

$926Air Canada

Sun, Feb 21 - Wed, Mar 3

3:15 pm - 5:40 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

33h 25m1 stop Vancouver Intl

7:25 pm - 9:57 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

19h 32m1 stop Vancouver Intl

$933Air Canada

Sat, Feb 13 - Mon, Feb 22

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

12:10 am - 1:20 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

20h 10m1 stop Taipei City Taiwan Taoyuan Intl

2:30 pm - 6:10 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

20h 40m1 stop Taipei City Taiwan Taoyuan Intl

$934China Airlines

Mon, Nov 30 - Tue, Dec 15

8:46 am - 8:25 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

18h 39m2 stops San Francisco Tokyo Haneda

2:40 pm - 9:55 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 15m1 stop Tokyo Narita

$984Japan Airlines

Tue, Dec 8 - Tue, Dec 15

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

8:46 am - 8:25 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

18h 39m2 stops San Francisco Tokyo Haneda

3:30 pm - 2:55 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

16h 25m2 stops Tokyo Haneda San Francisco

$1,018Japan Airlines

Tue, Dec 8 - Tue, Dec 15

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 6:40 amSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

26h 55m1 stop Hong Kong Intl

9:05 am - 10:05 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

17h 00m1 stop Hong Kong Intl

$909Cathay Pacific

Sat, Oct 3 - Thu, Oct 8

11:45 am - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

35h 05m2 stops Hong Kong Intl Taipei City Taiwan Taoyuan Intl

9:05 am - 10:05 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

17h 00m1 stop Hong Kong Intl

$932Cathay Pacific

Sat, Oct 3 - Thu, Oct 8

11:45 am - 9:15 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

41h 30m1 stop Hong Kong Intl

4:15 pm - 10:05 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

33h 50m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

$969Cathay Pacific

Sat, Oct 3 - Wed, Oct 7

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

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

$1,011China Airlines

Sun, Oct 4 - Tue, Dec 1

7:25 pm - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

27h 25m1 stop San Francisco

7:00 am - 2:25 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

23h 25m1 stop Tokyo Haneda

$1,023ANA

Sat, Oct 3 - Wed, Oct 7

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

26h 21m1 stop San Francisco

9:20 am - 2:25 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

21h 05m1 stop Tokyo Haneda

$1,056ANA

Sun, Oct 4 - Sat, Oct 17

11:20 am - 7:50 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

16h 30m2 stops Vancouver Intl Tokyo Narita

2:40 pm - 9:55 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 15m1 stop Tokyo Narita

$1,201Japan Airlines

Mon, Oct 5 - Tue, Dec 1

7:10 am - 7:50 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

20h 40m2 stops Los Angeles Tokyo Narita

2:35 pm - 10:35 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 00m1 stop Tokyo Narita

$1,304Japan Airlines

Sun, Oct 4 - Sat, Oct 17

1:15 pm - 7:50 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

14h 35m1 stop Tokyo Narita

2:40 pm - 9:55 amITM Osaka Itami-SEA Seattle/Tacoma Intl

12h 15m1 stop Tokyo Narita

$1,318Japan Airlines

Mon, Oct 5 - Tue, Dec 1

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United Airlines flights from State of Washington to Osaka

Our best United Airlines deals on State of Washington to Osaka flight tickets

United Airlines

Nov 12

GEG7:00 amSpokane

16h 45m

1 stop

KIX4:45 pmOsaka Kansai Intl

Nov 19

KIX6:35 pmOsaka Kansai Intl

19h 22m

1 stop

GEG8:57 pmSpokane

$917

United Airlines

Nov 12

GEG7:00 amSpokane

16h 45m

1 stop

KIX4:45 pmOsaka Kansai Intl

Nov 19

KIX3:20 pmOsaka Kansai Intl

22h 37m

2 stops

GEG8:57 pmSpokane

$921

United Airlines

Oct 28

GEG4:10 pmSpokane

56h 35m

2 stops

KIX4:45 pmOsaka Kansai Intl

Nov 4

KIX6:35 pmOsaka Kansai Intl

17h 06m

1 stop

GEG6:41 pmSpokane

$933

Korean Air flights from State of Washington to Osaka

Our best Korean Air deals on State of Washington to Osaka flight tickets

Korean Air

Nov 12

GEG7:00 amSpokane

20h 45m

2 stops

KIX8:45 pmOsaka Kansai Intl

Nov 19

KIX11:55 amOsaka Kansai Intl

19h 51m

2 stops

GEG2:46 pmSpokane

$937

Korean Air

Oct 26

SEA12:10 amSeattle/Tacoma Intl

18h 00m

1 stop

UKB10:10 amKobe

Nov 3

UKB11:10 amKobe

14h 55m

1 stop

SEA9:05 amSeattle/Tacoma Intl

$997

Korean Air

Nov 10

SEA12:10 amSeattle/Tacoma Intl

17h 00m

1 stop

UKB10:10 amKobe

Nov 18

UKB11:10 amKobe

14h 55m

1 stop

SEA9:05 amSeattle/Tacoma Intl

$998

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

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

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

Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 2/21

10:10 am-5:40 pm

1 stop14h 30m

Osaka Kansai Intl

Wed 3/3

7:25 pm-2:35 pm

1 stop12h 10m

$926

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sat 2/13

3:15 pm-5:40 pm

1 stop33h 25m

Osaka Kansai Intl

Mon 2/22

7:25 pm-9:57 pm

1 stop19h 32m

$933

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

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 11/30

12:10 am-1:20 pm

1 stop20h 10m

Osaka Kansai Intl

Tue 12/15

2:30 pm-6:10 pm

1 stop20h 40m

$934

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 12/8

8:46 am-8:25 pm

2 stops18h 39m

Osaka Itami

Tue 12/15

2:40 pm-9:55 am

1 stop12h 15m

$984

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

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 12/8

8:46 am-8:25 pm

2 stops18h 39m

Osaka Itami

Tue 12/15

3:30 pm-2:55 pm

2 stops16h 25m

$1,018

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 State of Washington 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

Other information

What is the cheapest month to fly to Osaka?

In general, January is the cheapest month to fly from State of Washington to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $727. If you are unable to visit Osaka during the month of January, then departing from State of Washington during the month February is also very affordable. Most momondo users find prices during this month for around $747.

Can stopping save me money on State of Washington to Osaka flights?

You could potentially save up to 30% on your flight if you consider stops on a State of Washington to Osaka flight.

Cheap State of Washington to Osaka flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Osaka

Best Price Found	$409
Fastest flight time	13h 15m
Direct flights	None

The best one-way flight to Osaka from State of Washington in the past 72 hours is $409. The best round-trip flight deal from State of Washington to Osaka found on momondo in the last 72 hours is $840.

The fastest flight from State of Washington to Osaka takes 13h 15m

There are no direct flights from State of Washington to Osaka. There are no popular flight routes from State of Washington to Osaka.

Search flight deals

Frequently asked questions about flying from Washington to Osaka

When did momondo last update prices for flights from Washington to Osaka?
Prices for flights from Washington to Osaka are updated daily.
How many operators does momondo search for flights from Washington to Osaka?
There are 5 operators available for flights from Washington to Osaka as of October 2026.
How old do you have to be to fly from Washington to Osaka?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

Best airlines flying from State of Washington to Osaka

Compare and see reviews for airlines that fly from State of Washington 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 11,711 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 should I use momondo to find a flight deal from Washington to Osaka?

Finding the right flight to Osaka from Washington 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 Osaka quick and easy, saving you time and money.

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

Yes. All flights to Osaka from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington 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 Washington to Osaka right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington to Osaka flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fly into one of these airports located in Osaka

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Cheap flights from Washington to Osaka from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Osaka departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from State of Washington to Osaka

Our best United Airlines deals on State of Washington to Osaka flight tickets

Korean Air flights from State of Washington to Osaka

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How to get the cheapest flight ticket from State of Washington to Osaka

What is the cheapest month to fly to Osaka?

Can stopping save me money on State of Washington to Osaka flights?

What is the cheapest airline that flies from Washington to Osaka?

What airlines fly to Osaka?

How long does it take to fly to Osaka?

Cheap State of Washington to Osaka flight deals and tips

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Frequently asked questions about flying from Washington to Osaka

Best airlines flying from State of Washington to Osaka

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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

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

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

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