What airlines fly to Osaka?

ANA, Asiana 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 64% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 11 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 15h 50m on average, while flying from Pasco to Osaka Kansai Intl Airport is 37h 35m on average. Osaka Kansai Intl Airport is the most popular airport in Osaka.

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

American Airlines, Asiana Airlines, and Air Canada are the most popular carriers operating 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 13 operators available for flights from Washington to Osaka as of September 2025.

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.

$302 Cheap Flights from Washington to Osaka in 2025/26

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Find the cheapest flights from Washington to Osaka

Round-trip

One-way

Last minute

Cheap round-trip flights

12:10 am - 8:55 pmSEA-KIX

27h 45m1 stop

9:00 am - 1:55 pmKIX-SEA

21h 55m1 stop

$563Asiana Airlines

Find Deal

Wed, Feb 18 - Fri, Feb 27

12:10 am - 3:50 pmSEA-KIX

22h 40m1 stop

9:00 am - 1:55 pmKIX-SEA

21h 55m1 stop

$564Asiana Airlines

Find Deal

Mon, Nov 10 - Thu, Nov 20

3:40 pm - 9:10 amSEA-ITM

24h 30m1 stop

6:00 pm - 1:20 pmITM-SEA

12h 20m1 stop

$593ANA

Find Deal

Tue, Nov 11 - Thu, Nov 20

3:45 pm - 8:00 amSEA-UKB

23h 15m1 stop

7:05 am - 1:20 pmUKB-SEA

23h 15m1 stop

$594ANA

Find Deal

Sun, Feb 22 - Wed, Mar 4

6:05 am - 7:15 pmSEA-ITM

20h 10m2 stops

2:40 pm - 9:50 amITM-SEA

12h 10m1 stop

$607American Airlines

Find Deal

Tue, Nov 11 - Thu, Nov 20

7:10 am - 8:45 pmSEA-KIX

20h 35m2 stops

11:55 am - 9:00 amKIX-SEA

14h 05m1 stop

$609Korean Air

Find Deal

Tue, Nov 11 - Tue, Nov 18

7:20 am - 6:45 pmSEA-KIX

18h 25m1 stop

8:45 pm - 8:15 pmKIX-SEA

16h 30m1 stop

$610Alaska Airlines

Find Deal

Wed, Feb 25 - Thu, Mar 5

11:00 am - 5:40 pmSEA-UKB

37h 40m1 stop

6:40 pm - 9:00 amUKB-SEA

31h 20m1 stop

$612Korean Air

Find Deal

Sun, Nov 9 - Mon, Nov 17

6:05 am - 6:45 pmSEA-ITM

19h 40m2 stops

2:40 pm - 6:11 pmITM-SEA

20h 31m2 stops

$617American Airlines

Find Deal

Tue, Nov 11 - Thu, Nov 20

7:20 am - 6:45 pmSEA-KIX

18h 25m1 stop

8:45 pm - 8:15 pmKIX-SEA

16h 30m1 stop

$660Alaska Airlines

Find Deal

Wed, Feb 25 - Sat, Mar 7

Hawaiian Airlines flights from State of Washington to Osaka

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

Hawaiian Airlines

Jan 27

PDX10:30 amPortland

39h 15m

1 stop

KIX6:45 pmOsaka Kansai Intl

Jan 29

KIX8:45 pmOsaka Kansai Intl

17h 20m

1 stop

PDX9:05 pmPortland

$657

Find similar

Hawaiian Airlines

Oct 26

PDX5:40 pmPortland

33h 05m

1 stop

KIX6:45 pmOsaka Kansai Intl

Nov 5

KIX8:45 pmOsaka Kansai Intl

17h 29m

1 stop

PDX9:14 pmPortland

$695

Find similar

Delta flights from State of Washington to Osaka

Our best Delta deals on State of Washington to Osaka flight tickets

Delta

Mar 15

PDX9:10 amPortland

39h 50m

2 stops

KIX5:00 pmOsaka Kansai Intl

Apr 2

KIX12:35 pmOsaka Kansai Intl

24h 12m

2 stops

PDX8:47 pmPortland

$654

Find similar

Delta

Mar 16

PDX5:45 pmPortland

51h 05m

2 stops

KIX12:50 pmOsaka Kansai Intl

Apr 4

KIX9:05 amOsaka Kansai Intl

39h 32m

2 stops

PDX8:37 amPortland

$665

Find similar

Delta

Nov 30

PSC6:15 amPasco Tri Cities

37h 35m

2 stops

KIX12:50 pmOsaka Kansai Intl

Dec 4

KIX11:55 amOsaka Kansai Intl

28h 04m

2 stops

PSC10:59 pmPasco Tri Cities

$679

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 2/18

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Fri 2/27

9:00 am-1:55 pm

1 stop21h 55m

$563

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 11/10

12:10 am-3:50 pm

1 stop22h 40m

Osaka Kansai Intl

Thu 11/20

9:00 am-1:55 pm

1 stop21h 55m

$564

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 11/11

3:40 pm-9:10 am

1 stop24h 30m

Osaka Itami

Thu 11/20

6:00 pm-1:20 pm

1 stop12h 20m

$593

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Sun 2/22

3:45 pm-8:00 am

1 stop23h 15m

Kobe

Wed 3/4

7:05 am-1:20 pm

1 stop23h 15m

$594

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 11/11

6:05 am-7:15 pm

2 stops20h 10m

Osaka Itami

Thu 11/20

2:40 pm-9:50 am

1 stop12h 10m

$607

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 11/11

7:10 am-8:45 pm

2 stops20h 35m

Osaka Kansai Intl

Tue 11/18

11:55 am-9:00 am

1 stop14h 05m

$609

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 2/25

7:20 am-6:45 pm

1 stop18h 25m

Osaka Kansai Intl

Thu 3/5

8:45 pm-8:15 pm

1 stop16h 30m

$610

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Sun 11/9

11:00 am-5:40 pm

1 stop37h 40m

Kobe

Mon 11/17

6:40 pm-9:00 am

1 stop31h 20m

$612

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 11/11

6:05 am-6:45 pm

2 stops19h 40m

Osaka Itami

Thu 11/20

2:40 pm-6:11 pm

2 stops20h 31m

$617

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 2/25

7:20 am-6:45 pm

1 stop18h 25m

Osaka Kansai Intl

Sat 3/7

8:45 pm-8:15 pm

1 stop16h 30m

$660

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, September 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 $744. If you are unable to visit Osaka during the month of September, then departing from State of Washington during the month August is also very affordable. Most momondo users find prices during this month for around $796.

What is the cheapest day to depart on your flight to Osaka?

According to our data, Tuesday is the cheapest day to fly to Osaka from State of Washington. The lowest ticket price found for a Tuesday departure recently was $1,071. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Osaka for around $1,160.

What is the cheapest time of day to depart on your flight to Osaka?

Our data shows that the cheapest State of Washington to Osaka flights are usually those with departure times in the evening. Our users have found flights to Osaka in the evening for as low as $994. Flights to Osaka are more costly in the afternoon, with an average ticket price of $1,459. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $972 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 $799 on momondo.

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

Direct flights	None

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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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 13 operators available for flights from Washington to Osaka as of September 2025.
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 $633	Free Cancellation	Rating 8.2 483 reviews	Search Asiana Airlines flights
Delta	PriceFrom $649	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Air Canada	PriceFrom $669	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
ANA	PriceFrom $673	Free Cancellation	Rating 8.4 973 reviews	Search ANA flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,569 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $716	Free Cancellation	Rating 8.4 1,143 reviews	Search Korean Air flights
China Eastern	PriceFrom $719	Free Cancellation	Rating 7.2 168 reviews	Search China Eastern flights
United Airlines	PriceFrom $794	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $918	Free Cancellation	Rating 8.9 216 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $963	Free Cancellation	Rating 8.4 1,242 reviews	Search EVA Air 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.