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

Asiana Airlines, Japan Airlines, and Alaska 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 69% 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 50m on average, while flying from Seattle to Osaka Kansai Intl Airport is 21h 15m 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 May 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

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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.

12:10 am - 9:35 pm

SEA

KIX

29h 25m

1 stop

7:45 pm - 3:15 pm

KIX

SEA

35h 30m

1 stop

$858Asiana Airlines

Mo, Sep 28 - Mo, Okt 12

12:10 am - 9:00 am

SEA

KIX

16h 50m

1 stop

7:45 pm - 3:15 pm

KIX

SEA

35h 30m

1 stop

$860Asiana Airlines

So, Okt 4 - Do, Okt 8

1:05 pm - 8:45 pm

SEA

KIX

15h 40m

1 stop

12:35 pm - 1:37 pm

KIX

SEA

17h 02m

1 stop

$874Delta

So, Aug 30 - Di, Sep 8

7:00 am - 6:10 pm

PDX

ITM

19h 10m

2 stops

12:50 pm - 2:47 pm

ITM

PDX

17h 57m

2 stops

$927ANA

Mi, Aug 19 - Fr, Aug 28

7:00 am - 2:50 pm

PDX

KIX

15h 50m

1 stop

4:55 pm - 2:47 pm

KIX

PDX

13h 52m

1 stop

$933ANA

Mi, Aug 19 - Fr, Aug 28

7:00 am - 7:50 pm

PDX

KIX

20h 50m

2 stops

9:20 am - 2:47 pm

KIX

PDX

21h 27m

2 stops

$948United Airlines

Mi, Aug 19 - Fr, Aug 28

7:00 am - 2:50 pm

PDX

KIX

15h 50m

1 stop

9:20 am - 12:47 am

KIX

PDX

31h 27m

2 stops

$962United Airlines

Di, Sep 1 - Mi, Sep 16

7:00 am - 6:50 pm

PDX

KIX

18h 50m

1 stop

5:50 pm - 8:31 pm

KIX

PDX

19h 41m

1 stop

$998Alaska Airlines

So, Nov 1 - So, Nov 8

7:00 am - 9:55 pm

PDX

KIX

22h 55m

2 stops

6:40 am - 4:50 pm

KIX

PDX

26h 10m

2 stops

$1,006Alaska Airlines

Mi, Sep 9 - Di, Sep 22

3:25 pm - 10:40 pm

PSC

KIX

39h 15m

2 stops

12:35 pm - 11:59 pm

KIX

PSC

27h 24m

2 stops

$1,656Delta

Mo, Jun 22 - Mo, Jun 29

Asiana Airlines flights from State of Washington to Osaka

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

Asiana Airlines

Sep 28

SEA12:10 amSeattle/Tacoma Intl

29h 25m

1 stop

KIX9:35 pmOsaka Kansai Intl

Oct 12

KIX7:45 pmOsaka Kansai Intl

35h 30m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$858

Asiana Airlines

Oct 4

SEA12:10 amSeattle/Tacoma Intl

16h 50m

1 stop

KIX9:00 amOsaka Kansai Intl

Oct 8

KIX7:45 pmOsaka Kansai Intl

35h 30m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$860

Asiana Airlines

Aug 30

SEA12:10 amSeattle/Tacoma Intl

16h 50m

1 stop

KIX9:00 amOsaka Kansai Intl

Sep 11

KIX10:30 amOsaka Kansai Intl

20h 45m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$861

Alaska Airlines flights from State of Washington to Osaka

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

Alaska Airlines

Nov 1

PDX7:00 amPortland

18h 50m

1 stop

KIX6:50 pmOsaka Kansai Intl

Nov 8

KIX5:50 pmOsaka Kansai Intl

19h 41m

1 stop

PDX8:31 pmPortland

$998

Alaska Airlines

Sep 9

PDX7:00 amPortland

22h 55m

2 stops

KIX9:55 pmOsaka Kansai Intl

Sep 22

KIX6:40 amOsaka Kansai Intl

26h 10m

2 stops

PDX4:50 pmPortland

$1,006

Alaska Airlines

Sep 1

PDX9:35 pmPortland

32h 20m

2 stops

KIX9:55 pmOsaka Kansai Intl

Sep 22

KIX6:40 amOsaka Kansai Intl

26h 10m

2 stops

PDX4:50 pmPortland

$1,015

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mo 9/28

12:10 am-9:35 pm

1 stop29h 25m

Osaka Kansai Intl

Mo 10/12

7:45 pm-3:15 pm

1 stop35h 30m

$858

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

So 10/4

12:10 am-9:00 am

1 stop16h 50m

Osaka Kansai Intl

Do 10/8

7:45 pm-3:15 pm

1 stop35h 30m

$860

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

So 8/30

1:05 pm-8:45 pm

1 stop15h 40m

Osaka Kansai Intl

Di 9/8

12:35 pm-1:37 pm

1 stop17h 02m

$874

PortlandOsaka

PDX - ITM

PDXITM

Portland

Mi 8/19

7:00 am-6:10 pm

2 stops19h 10m

Osaka Itami

Fr 8/28

12:50 pm-2:47 pm

2 stops17h 57m

$927

Quickest round-trip

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Mi 8/19

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Fr 8/28

4:55 pm-2:47 pm

1 stop13h 52m

$933

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Mi 8/19

7:00 am-7:50 pm

2 stops20h 50m

Osaka Kansai Intl

Fr 8/28

9:20 am-2:47 pm

2 stops21h 27m

$948

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Di 9/1

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Mi 9/16

9:20 am-12:47 am

2 stops31h 27m

$962

PortlandOsaka

PDX - KIX

PDXKIX

Portland

So 11/1

7:00 am-6:50 pm

1 stop18h 50m

Osaka Kansai Intl

So 11/8

5:50 pm-8:31 pm

1 stop19h 41m

$998

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Mi 9/9

7:00 am-9:55 pm

2 stops22h 55m

Osaka Kansai Intl

Di 9/22

6:40 am-4:50 pm

2 stops26h 10m

$1,006

PascoOsaka

PSC - KIX

PSCKIX

Pasco Tri Cities

Mo 6/22

3:25 pm-10:40 pm

2 stops39h 15m

Osaka Kansai Intl

Mo 6/29

12:35 pm-11:59 pm

2 stops27h 24m

$1,656

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 $845 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 $715 on momondo.

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

You could potentially save up to 43% 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 May 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 12,350 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $565	Free Cancellation	Rating 8.1 530 reviews	Search Asiana Airlines flights
ANA	PriceFrom $650	Free Cancellation	Rating 8.3 1,207 reviews	Search ANA flights
Air Canada	PriceFrom $669	Free Cancellation	Rating 7.1 11,013 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,817 reviews	Search Japan Airlines flights

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Why use momondo?

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 $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 9/27. 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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Asiana 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

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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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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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