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

Air Canada, Cathay Pacific, and China Airlines are the most popular carriers operating from Washington to Osaka

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 17h 25m on average, while flying from Pasco to Osaka Kansai Intl Airport is 32h 36m on average. Osaka Kansai Intl Airport is the most popular airport in Osaka.

What airlines fly to Osaka?

ANA, Japan Airlines and Asiana Airlines 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 68% 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 7 operators available for flights from Washington to Osaka as of August 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.

$415 Cheap Flights from Washington to Osaka in 2026

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.

3:00 pm - 4:25 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

33h 25m1 stop Vancouver Intl

6:00 pm - 10:05 amKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

32h 05m1 stop Vancouver Intl

$788Air Canada

Sat, Aug 29 - Mon, Sep 14

7:45 pm - 4:25 pmPDX Portland-KIX Osaka Kansai Intl

28h 40m1 stop Vancouver Intl

9:20 am - 7:11 pmKIX Osaka Kansai Intl-PDX Portland

25h 51m2 stops Tokyo Haneda Vancouver Intl

$810Air Canada

Thu, Aug 27 - Thu, Sep 10

7:00 am - 8:35 pmPDX Portland-KIX Osaka Kansai Intl

20h 35m2 stops Vancouver Intl Tokyo Narita

3:25 pm - 2:41 pmKIX Osaka Kansai Intl-PDX Portland

16h 16m2 stops Sapporo Chitose Vancouver Intl

$833Multiple Airlines

Thu, Feb 4 - Fri, Feb 12

8:15 am - 7:55 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

18h 40m2 stops Vancouver Intl Tokyo Narita

3:55 pm - 2:37 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

15h 42m2 stops Sapporo Chitose Vancouver Intl

$837Multiple Airlines

Tue, Feb 2 - Tue, Feb 23

4:30 pm - 8:05 amSEA Seattle/Tacoma Intl-ITM Osaka Itami

23h 35m1 stop Tokyo Haneda

3:00 pm - 2:25 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

15h 25m1 stop Tokyo Haneda

$1,075ANA

Sat, Aug 29 - Mon, Sep 14

4:30 pm - 9:45 pmSEA Seattle/Tacoma Intl-UKB Kobe

13h 15m1 stop Tokyo Haneda

7:05 am - 2:25 pmUKB Kobe-SEA Seattle/Tacoma Intl

23h 20m1 stop Tokyo Haneda

$1,080ANA

Sat, Aug 29 - Mon, Sep 14

12:10 am - 2:00 pmSEA Seattle/Tacoma Intl-UKB Kobe

21h 50m1 stop Incheon Intl

3:00 pm - 3:15 pmUKB Kobe-SEA Seattle/Tacoma Intl

16h 15m1 stop Incheon Intl

$1,080Asiana Airlines

Sun, Oct 4 - Fri, Oct 23

12:10 am - 2:00 pmSEA Seattle/Tacoma Intl-UKB Kobe

20h 50m1 stop Incheon Intl

3:00 pm - 1:55 pmUKB Kobe-SEA Seattle/Tacoma Intl

15h 55m1 stop Incheon Intl

$1,083Asiana Airlines

Mon, Feb 1 - Tue, Feb 23

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

14h 35m1 stop Tokyo Narita

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

12h 00m1 stop Tokyo Narita

$1,100Japan Airlines

Tue, Sep 8 - Tue, Sep 15

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

14h 35m1 stop Tokyo Narita

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

12h 00m1 stop Tokyo Narita

$1,108Japan Airlines

Tue, Sep 1 - Fri, Sep 11

Cheap last minute flights

Enter your travel dates to find the best prices.

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

15h 39m1 stop San Francisco

4:55 pm - 11:26 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

22h 31m1 stop San Francisco

$1,097ANA

Mon, Aug 17 - Mon, Aug 24

6:30 pm - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

28h 20m2 stops Los Angeles San Francisco

4:55 pm - 11:26 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

22h 31m1 stop San Francisco

$1,115United Airlines

Mon, Aug 17 - Mon, Aug 24

6:30 pm - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

28h 20m2 stops Los Angeles San Francisco

4:55 pm - 9:51 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

20h 56m2 stops San Francisco Los Angeles

$1,115United Airlines

Mon, Aug 17 - Mon, Aug 24

7:15 am - 6:40 pmPDX Portland-ITM Osaka Itami

19h 25m2 stops San Francisco Tokyo Haneda

1:25 pm - 1:50 pmITM Osaka Itami-PDX Portland

16h 25m2 stops Tokyo Haneda San Francisco

$1,179Multiple Airlines

Sat, Aug 15 - Mon, Aug 17

4:30 pm - 10:20 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

13h 50m1 stop Tokyo Haneda

4:55 pm - 4:14 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

15h 19m1 stop San Francisco

$1,191ANA

Fri, Aug 14 - Sun, Aug 16

4:30 pm - 2:05 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

29h 35m1 stop Tokyo Haneda

8:20 pm - 2:25 pmITM Osaka Itami-SEA Seattle/Tacoma Intl

34h 05m1 stop Tokyo Haneda

$1,199ANA

Fri, Aug 14 - Sun, Aug 16

6:52 pm - 2:50 pmSEA Seattle/Tacoma Intl-KIX Osaka Kansai Intl

27h 58m2 stops Los Angeles San Francisco

4:55 pm - 8:43 pmKIX Osaka Kansai Intl-SEA Seattle/Tacoma Intl

19h 48m1 stop San Francisco

$1,215United Airlines

Fri, Aug 14 - Sun, Aug 16

7:26 am - 7:50 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

20h 24m2 stops San Diego Tokyo Narita

11:25 am - 10:50 amITM Osaka Itami-SEA Seattle/Tacoma Intl

15h 25m1 stop Tokyo Haneda

$1,226Japan Airlines

Fri, Aug 14 - Sun, Aug 16

7:26 am - 7:50 pmSEA Seattle/Tacoma Intl-ITM Osaka Itami

20h 24m2 stops San Diego Tokyo Narita

9:50 am - 10:50 amITM Osaka Itami-SEA Seattle/Tacoma Intl

17h 00m2 stops Matsuyama Tokyo Haneda

$1,306Japan Airlines

Fri, Aug 14 - Sun, Aug 16

8:30 pm - 10:10 amPDX Portland-KIX Osaka Kansai Intl

21h 40m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

1:10 pm - 8:31 pmKIX Osaka Kansai Intl-PDX Portland

23h 21m2 stops Taipei City Taiwan Taoyuan Intl San Francisco

$1,524Multiple Airlines

Sat, Aug 15 - Mon, Aug 17

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Air Canada flights from State of Washington to Osaka

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

Air Canada

Aug 29

SEA3:00 pmSeattle/Tacoma Intl

33h 25m

1 stop

KIX4:25 pmOsaka Kansai Intl

Sep 14

KIX6:00 pmOsaka Kansai Intl

32h 05m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$788

Air Canada

Aug 27

PDX7:45 pmPortland

28h 40m

1 stop

KIX4:25 pmOsaka Kansai Intl

Sep 10

KIX9:20 amOsaka Kansai Intl

25h 51m

2 stops

PDX7:11 pmPortland

$810

Air Canada

Aug 27

PDX3:30 pmPortland

32h 55m

1 stop

KIX4:25 pmOsaka Kansai Intl

Sep 10

KIX6:00 pmOsaka Kansai Intl

17h 11m

1 stop

PDX7:11 pmPortland

$814

Cathay Pacific flights from State of Washington to Osaka

Our best Cathay Pacific deals on State of Washington to Osaka flight tickets

Cathay Pacific

Nov 10

SEA10:50 amSeattle/Tacoma Intl

37h 50m

1 stop

KIX5:40 pmOsaka Kansai Intl

Nov 17

KIX10:00 amOsaka Kansai Intl

40h 10m

1 stop

SEA9:10 amSeattle/Tacoma Intl

$884

Cathay Pacific

Sep 8

SEA12:25 pmSeattle/Tacoma Intl

26h 15m

1 stop

KIX6:40 amOsaka Kansai Intl

Sep 15

KIX9:05 amOsaka Kansai Intl

17h 15m

1 stop

SEA10:20 amSeattle/Tacoma Intl

$890

Cathay Pacific

Sep 8

SEA12:25 pmSeattle/Tacoma Intl

34h 25m

2 stops

KIX2:50 pmOsaka Kansai Intl

Sep 15

KIX9:05 amOsaka Kansai Intl

17h 15m

1 stop

SEA10:20 amSeattle/Tacoma Intl

$905

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sat 8/29

3:00 pm-4:25 pm

1 stop33h 25m

Osaka Kansai Intl

Mon 9/14

6:00 pm-10:05 am

1 stop32h 05m

$788

PortlandOsaka

PDX Portland - KIX Osaka Kansai Intl

PDXKIX

Portland

Thu 8/27

7:45 pm-4:25 pm

1 stop28h 40m

Osaka Kansai Intl

Thu 9/10

9:20 am-7:11 pm

2 stops25h 51m

$810

PortlandOsaka

PDX Portland - KIX Osaka Kansai Intl

PDXKIX

Portland

Thu 2/4

7:00 am-8:35 pm

2 stops20h 35m

Osaka Kansai Intl

Fri 2/12

3:25 pm-2:41 pm

2 stops16h 16m

$833

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 2/2

8:15 am-7:55 pm

2 stops18h 40m

Osaka Itami

Tue 2/23

3:55 pm-2:37 pm

2 stops15h 42m

$837

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Sat 8/29

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Mon 9/14

3:00 pm-2:25 pm

1 stop15h 25m

$1,075

SeattleKobe

SEA Seattle/Tacoma Intl - UKB Kobe

SEAUKB

Seattle/Tacoma Intl

Sat 8/29

4:30 pm-9:45 pm

1 stop13h 15m

Kobe

Mon 9/14

7:05 am-2:25 pm

1 stop23h 20m

$1,080

SeattleKobe

SEA Seattle/Tacoma Intl - UKB Kobe

SEAUKB

Seattle/Tacoma Intl

Sun 10/4

12:10 am-2:00 pm

1 stop21h 50m

Kobe

Fri 10/23

3:00 pm-3:15 pm

1 stop16h 15m

$1,080

SeattleKobe

SEA Seattle/Tacoma Intl - UKB Kobe

SEAUKB

Seattle/Tacoma Intl

Mon 2/1

12:10 am-2:00 pm

1 stop20h 50m

Kobe

Tue 2/23

3:00 pm-1:55 pm

1 stop15h 55m

$1,083

Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 9/8

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Tue 9/15

2:35 pm-10:35 am

1 stop12h 00m

$1,100

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 9/1

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Fri 9/11

2:35 pm-10:35 am

1 stop12h 00m

$1,108

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 $688. 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 $701.

How far in advance should I book a flight from Washington to Osaka?

You are more likely to see cheaper flights to Osaka from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka for around $896 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Osaka from State of Washington for as low as $650 on momondo.

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

You could potentially save up to 39% 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

Fastest flight time	13h 15m
Direct flights	None

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 7 operators available for flights from Washington to Osaka as of August 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
Alaska Airlines	PriceFrom $370	Free Cancellation	Rating 7.9 12,805 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $565	Free Cancellation	Rating 8.1 556 reviews	Search Asiana Airlines flights
ANA	PriceFrom $644	Free Cancellation	Rating 8.3 1,296 reviews	Search ANA flights
Air Canada	PriceFrom $675	Free Cancellation	Rating 7.1 11,466 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $788	Free Cancellation	Rating 8.3 1,902 reviews	Search Japan 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

Osaka Itami Airport

Osaka Kansai Intl Airport

Cheap flights from Washington to Osaka from $415

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 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from State of Washington to Osaka

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

Cathay Pacific flights from State of Washington to Osaka

Our best Cathay Pacific deals on State of Washington to Osaka flight tickets

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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?

How far in advance should I book a flight from Washington 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

Compare and see reviews for airlines that fly from State of Washington 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.

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

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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.

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