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

Hainan Airlines, Air Canada, and Japan Airlines are the most popular carriers operating from Washington to 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 71% 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.

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 Pasco to Osaka Kansai Intl Airport is 15h 55m on average, while flying from Seattle to Osaka Kansai Intl Airport is 18h 45m on average. Osaka Kansai Intl Airport is the most popular airport in 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 June 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.

$436 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.

11:10 pm - 2:10 pm

SEA

KIX

23h 00m

1 stop

10:25 am - 8:05 pm

KIX

SEA

25h 40m

1 stop

$840Philippine Airlines

Fri, Sep 11 - Sun, Oct 11

11:00 am - 12:45 pm

SEA

KIX

33h 45m

1 stop

2:20 pm - 9:00 am

KIX

SEA

34h 40m

1 stop

$845Hainan Airlines

Sat, Aug 22 - Mon, Aug 31

7:45 pm - 4:25 pm

PDX

KIX

28h 40m

1 stop

6:00 pm - 7:06 pm

KIX

PDX

17h 06m

1 stop

$951Air Canada

Tue, Sep 1 - Tue, Sep 29

10:10 am - 4:25 pm

PDX

KIX

14h 15m

1 stop

7:35 am - 2:51 pm

KIX

PDX

23h 16m

2 stops

$964Multiple Airlines

Mon, Sep 28 - Fri, Oct 9

7:45 pm - 4:25 pm

PDX

KIX

28h 40m

1 stop

9:20 am - 7:06 pm

KIX

PDX

25h 46m

2 stops

$965Air Canada

Tue, Sep 8 - Thu, Sep 17

4:05 pm - 4:25 pm

PDX

KIX

32h 20m

2 stops

6:00 pm - 2:51 pm

KIX

PDX

12h 51m

1 stop

$966Multiple Airlines

Tue, Sep 1 - Tue, Sep 29

1:25 pm - 7:50 pm

SEA

ITM

14h 25m

1 stop

2:30 pm - 10:50 am

ITM

SEA

12h 20m

1 stop

$1,037Japan Airlines

Tue, Aug 4 - Thu, Aug 20

7:03 am - 7:50 pm

SEA

ITM

20h 47m

2 stops

2:30 pm - 10:50 am

ITM

SEA

12h 20m

1 stop

$1,048Japan Airlines

Tue, Aug 4 - Thu, Aug 20

7:11 am - 6:55 pm

SEA

ITM

19h 44m

2 stops

4:40 pm - 2:25 pm

ITM

SEA

13h 45m

1 stop

$1,074ANA

Wed, Aug 26 - Wed, Sep 2

4:30 pm - 7:50 am

SEA

UKB

23h 20m

1 stop

7:05 am - 2:25 pm

UKB

SEA

23h 20m

1 stop

$1,074ANA

Mon, Aug 31 - Fri, Sep 18

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Hainan Airlines flights from State of Washington to Osaka

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

Hainan Airlines

Aug 22

SEA11:00 amSeattle/Tacoma Intl

33h 45m

1 stop

KIX12:45 pmOsaka Kansai Intl

Aug 31

KIX2:20 pmOsaka Kansai Intl

34h 40m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$845

Hainan Airlines

Aug 22

SEA11:00 amSeattle/Tacoma Intl

33h 45m

1 stop

KIX12:45 pmOsaka Kansai Intl

Aug 31

KIX2:20 pmOsaka Kansai Intl

34h 40m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$848

Hainan Airlines

Sep 12

SEA11:00 amSeattle/Tacoma Intl

33h 45m

1 stop

KIX12:45 pmOsaka Kansai Intl

Oct 12

KIX2:20 pmOsaka Kansai Intl

34h 40m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$854

Air Canada flights from State of Washington to Osaka

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

Air Canada

Sep 1

PDX7:45 pmPortland

28h 40m

1 stop

KIX4:25 pmOsaka Kansai Intl

Sep 29

KIX6:00 pmOsaka Kansai Intl

17h 06m

1 stop

PDX7:06 pmPortland

$951

Air Canada

Sep 8

PDX7:45 pmPortland

28h 40m

1 stop

KIX4:25 pmOsaka Kansai Intl

Sep 17

KIX9:20 amOsaka Kansai Intl

25h 46m

2 stops

PDX7:06 pmPortland

$965

Air Canada

Sep 29

PDX10:10 amPortland

17h 40m

2 stops

KIX7:50 pmOsaka Kansai Intl

Oct 22

KIX6:00 pmOsaka Kansai Intl

31h 31m

1 stop

PDX9:31 amPortland

$968

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 9/11

11:10 pm-2:10 pm

1 stop23h 00m

Osaka Kansai Intl

Sun 10/11

10:25 am-8:05 pm

1 stop25h 40m

$840

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 8/22

11:00 am-12:45 pm

1 stop33h 45m

Osaka Kansai Intl

Mon 8/31

2:20 pm-9:00 am

1 stop34h 40m

$845

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 9/1

7:45 pm-4:25 pm

1 stop28h 40m

Osaka Kansai Intl

Tue 9/29

6:00 pm-7:06 pm

1 stop17h 06m

$951

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Mon 9/28

10:10 am-4:25 pm

1 stop14h 15m

Osaka Kansai Intl

Fri 10/9

7:35 am-2:51 pm

2 stops23h 16m

$964

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 9/8

7:45 pm-4:25 pm

1 stop28h 40m

Osaka Kansai Intl

Thu 9/17

9:20 am-7:06 pm

2 stops25h 46m

$965

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 9/1

4:05 pm-4:25 pm

2 stops32h 20m

Osaka Kansai Intl

Tue 9/29

6:00 pm-2:51 pm

1 stop12h 51m

$966

Quickest round-trip

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 8/4

1:25 pm-7:50 pm

1 stop14h 25m

Osaka Itami

Thu 8/20

2:30 pm-10:50 am

1 stop12h 20m

$1,037

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 8/4

7:03 am-7:50 pm

2 stops20h 47m

Osaka Itami

Thu 8/20

2:30 pm-10:50 am

1 stop12h 20m

$1,048

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 8/26

7:11 am-6:55 pm

2 stops19h 44m

Osaka Itami

Wed 9/2

4:40 pm-2:25 pm

1 stop13h 45m

$1,074

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Mon 8/31

4:30 pm-7:50 am

1 stop23h 20m

Kobe

Fri 9/18

7:05 am-2:25 pm

1 stop23h 20m

$1,074

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

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Other information

What is the cheapest month to fly to Osaka?

In general, March 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 $363. If you are unable to visit Osaka during the month of March, then departing from State of Washington during the month February is also very affordable. Most momondo users find prices during this month for around $370.

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 $828 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 41% 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.

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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 June 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 12,550 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $565	Free Cancellation	Rating 8.1 545 reviews	Search Asiana Airlines flights
ANA	PriceFrom $649	Free Cancellation	Rating 8.3 1,248 reviews	Search ANA flights
Air Canada	PriceFrom $664	Free Cancellation	Rating 7.1 11,229 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,841 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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Cheap flights from Washington to Osaka from $436

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 11/14. 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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Hainan Airlines 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?

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?

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Compare and see reviews for airlines that fly from State of Washington to Osaka with momondo

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Why use momondo?

An easier way to manage your Osaka trip

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Airports listed have a maximum distance of 22.5 mi from Osaka

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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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