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

Delta, Korean Air, and ANA are the most popular carriers operating from Washington to Osaka

What airlines fly to Osaka?

ANA, Asiana Airlines and Japan 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 66% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 8 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 Seattle to Osaka Kansai Intl Airport is 17h 50m on average, while flying from Pasco to Osaka Kansai Intl Airport is 24h 10m 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 9 operators available for flights from Washington to Osaka as of March 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.

$315 Cheap Flights from Washington to Osaka in 2026

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Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:10 pm - 7:35 pm

SEA

KIX

28h 25m

1 stop

10:25 am - 8:05 pm

KIX

SEA

25h 40m

1 stop

$634Philippine Airlines

Wed, Aug 26 - Wed, Sep 2

11:10 pm - 2:10 pm

SEA

KIX

23h 00m

1 stop

3:15 pm - 8:05 pm

KIX

SEA

20h 50m

1 stop

$636Philippine Airlines

Wed, Sep 2 - Wed, Sep 9

11:10 pm - 2:10 pm

SEA

KIX

23h 00m

1 stop

10:25 am - 8:05 pm

KIX

SEA

25h 40m

1 stop

$670Philippine Airlines

Sun, Aug 30 - Wed, Sep 9

11:45 am - 6:40 am

SEA

KIX

26h 55m

1 stop

9:05 am - 10:05 am

KIX

SEA

17h 00m

1 stop

$704Cathay Pacific

Mon, Apr 27 - Tue, May 12

12:55 am - 9:00 am

SEA

KIX

16h 05m

1 stop

7:45 pm - 2:55 pm

KIX

SEA

35h 10m

1 stop

$711Asiana Airlines

Sun, Aug 23 - Wed, Sep 9

12:55 am - 9:35 pm

SEA

KIX

28h 40m

1 stop

9:30 am - 2:55 pm

KIX

SEA

21h 25m

1 stop

$718Asiana Airlines

Mon, Apr 6 - Tue, Jun 9

5:10 am - 8:45 pm

PSC

KIX

23h 35m

2 stops

12:35 pm - 2:50 pm

KIX

PSC

18h 15m

2 stops

$736Delta

Thu, Apr 30 - Thu, May 7

12:50 pm - 10:55 am

SEA

UKB

30h 05m

1 stop

11:55 am - 10:40 am

UKB

SEA

14h 45m

1 stop

$742Korean Air

Mon, Apr 27 - Tue, May 12

10:42 am - 10:40 pm

PDX

KIX

19h 58m

2 stops

2:15 am - 7:23 pm

KIX

PDX

33h 08m

2 stops

$761Delta

Tue, Apr 21 - Tue, May 12

6:30 am - 11:20 am

PSC

KIX

36h 50m

2 stops

6:15 pm - 4:20 pm

KIX

PSC

38h 05m

2 stops

$787Korean Air

Sat, Sep 5 - Wed, Sep 9

Air Canada flights from State of Washington to Osaka

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

Air Canada

Apr 7

PDX7:05 pmPortland

29h 20m

1 stop

KIX4:25 pmOsaka Kansai Intl

May 12

KIX6:00 pmOsaka Kansai Intl

17h 05m

1 stop

PDX7:05 pmPortland

$874

Air Canada

Mar 29

PDX9:50 amPortland

14h 35m

1 stop

KIX4:25 pmOsaka Kansai Intl

Apr 16

KIX6:00 pmOsaka Kansai Intl

16h 30m

1 stop

PDX6:30 pmPortland

$1,872

Philippine Airlines flights from State of Washington to Osaka

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

Philippine Airlines

Aug 26

SEA11:10 pmSeattle/Tacoma Intl

28h 25m

1 stop

KIX7:35 pmOsaka Kansai Intl

Sep 2

KIX10:25 amOsaka Kansai Intl

25h 40m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$634

Philippine Airlines

Sep 2

SEA11:10 pmSeattle/Tacoma Intl

23h 00m

1 stop

KIX2:10 pmOsaka Kansai Intl

Sep 9

KIX3:15 pmOsaka Kansai Intl

20h 50m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$636

Philippine Airlines

Aug 30

SEA11:10 pmSeattle/Tacoma Intl

23h 00m

1 stop

KIX2:10 pmOsaka Kansai Intl

Sep 9

KIX10:25 amOsaka Kansai Intl

25h 40m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$670

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 8/26

11:10 pm-7:35 pm

1 stop28h 25m

Osaka Kansai Intl

Wed 9/2

10:25 am-8:05 pm

1 stop25h 40m

$634

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 9/2

11:10 pm-2:10 pm

1 stop23h 00m

Osaka Kansai Intl

Wed 9/9

3:15 pm-8:05 pm

1 stop20h 50m

$636

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 8/30

11:10 pm-2:10 pm

1 stop23h 00m

Osaka Kansai Intl

Wed 9/9

10:25 am-8:05 pm

1 stop25h 40m

$670

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 4/27

11:45 am-6:40 am

1 stop26h 55m

Osaka Kansai Intl

Tue 5/12

9:05 am-10:05 am

1 stop17h 00m

$704

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 8/23

12:55 am-9:00 am

1 stop16h 05m

Osaka Kansai Intl

Wed 9/9

7:45 pm-2:55 pm

1 stop35h 10m

$711

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 4/6

12:55 am-9:35 pm

1 stop28h 40m

Osaka Kansai Intl

Tue 6/9

9:30 am-2:55 pm

1 stop21h 25m

$718

Quickest round-trip

PascoOsaka

PSC - KIX

PSCKIX

Pasco Tri Cities

Thu 4/30

5:10 am-8:45 pm

2 stops23h 35m

Osaka Kansai Intl

Thu 5/7

12:35 pm-2:50 pm

2 stops18h 15m

$736

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Mon 4/27

12:50 pm-10:55 am

1 stop30h 05m

Kobe

Tue 5/12

11:55 am-10:40 am

1 stop14h 45m

$742

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 4/21

10:42 am-10:40 pm

2 stops19h 58m

Osaka Kansai Intl

Tue 5/12

2:15 am-7:23 pm

2 stops33h 08m

$761

PascoOsaka

PSC - KIX

PSCKIX

Pasco Tri Cities

Sat 9/5

6:30 am-11:20 am

2 stops36h 50m

Osaka Kansai Intl

Wed 9/9

6:15 pm-4:20 pm

2 stops38h 05m

$787

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

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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 $674. 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 $679.

How far in advance should I book a flight 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 $842 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 $666 on momondo.

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

You could potentially save up to 4% 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

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 9 operators available for flights from Washington to Osaka as of March 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 12,091 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $595	Free Cancellation	Rating 8.1 506 reviews	Search Asiana Airlines flights
ANA	PriceFrom $649	Free Cancellation	Rating 8.4 1,136 reviews	Search ANA flights
Korean Air	PriceFrom $660	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
Air Canada	PriceFrom $669	Free Cancellation	Rating 7.1 10,828 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,742 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $794	Free Cancellation	Rating 7.4 9,453 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $934	Free Cancellation	Rating 9.0 292 reviews	Search STARLUX 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 $315

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 9/15. 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

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

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

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