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 16h 20m on average. Osaka Kansai Intl Airport is the most popular airport in Osaka.

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

Japan Airlines, Korean Air, and Air Canada are the most popular carriers operating from Washington to Osaka

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 61% 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.

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 August 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.

$334 Cheap Flights from Washington to Osaka in 2025

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Find the cheapest flights from Washington to Osaka

Round-trip

One-way

Last minute

Cheap round-trip flights

12:50 pm - 10:10 amSEA-UKB

29h 20m1 stop

6:40 pm - 10:40 amUKB-SEA

32h 00m1 stop

$602Korean Air

Find Deal

Mon, Sep 8 - Tue, Sep 30

12:50 pm - 9:00 pmSEA-KIX

16h 10m1 stop

12:35 pm - 7:14 pmKIX-SEA

22h 39m2 stops

$610Korean Air

Find Deal

Mon, Sep 8 - Tue, Sep 30

5:30 am - 4:40 pmSEA-KIX

19h 10m1 stop

2:10 pm - 1:20 pmKIX-SEA

16h 10m1 stop

$612ANA

Find Deal

Tue, Oct 28 - Fri, Nov 7

4:30 pm - 9:50 pmSEA-KIX

13h 20m1 stop

5:30 pm - 2:25 pmKIX-SEA

12h 55m1 stop

$614ANA

Find Deal

Tue, Oct 14 - Thu, Oct 16

7:40 pm - 4:25 pmPDX-KIX

28h 45m1 stop

6:05 pm - 6:46 pmKIX-PDX

16h 41m1 stop

$633Air Canada

Find Deal

Tue, Sep 9 - Tue, Sep 16

7:40 pm - 4:25 pmPDX-KIX

28h 45m1 stop

6:05 pm - 6:46 pmKIX-PDX

16h 41m1 stop

$635Air Canada

Find Deal

Sun, Aug 31 - Sat, Sep 13

3:40 pm - 6:10 pmSEA-ITM

33h 30m1 stop

1:00 pm - 1:20 pmITM-SEA

17h 20m1 stop

$642United Airlines

Find Deal

Mon, Nov 17 - Wed, Dec 17

7:05 am - 4:40 pmSEA-KIX

16h 35m1 stop

8:25 am - 1:20 pmKIX-SEA

21h 55m1 stop

$642United Airlines

Find Deal

Wed, Jan 14 - Thu, Jan 22

8:37 am - 7:45 pmSEA-ITM

19h 08m2 stops

2:35 pm - 10:25 amITM-SEA

11h 50m1 stop

$647Japan Airlines

Find Deal

Sun, Sep 7 - Fri, Sep 19

8:37 am - 7:45 pmSEA-ITM

19h 08m2 stops

2:35 pm - 10:25 amITM-SEA

11h 50m1 stop

$650Japan Airlines

Find Deal

Wed, Sep 3 - Fri, Sep 12

Delta flights from State of Washington to Osaka

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

Delta

Nov 4

SEA11:00 amSeattle/Tacoma Intl

30h 45m

1 stop

KIX10:45 amOsaka Kansai Intl

Nov 14

KIX9:15 amOsaka Kansai Intl

30h 09m

2 stops

SEA10:24 pmSeattle/Tacoma Intl

$660

Find similar

Delta

Nov 11

SEA7:20 amSeattle/Tacoma Intl

20h 40m

2 stops

KIX9:00 pmOsaka Kansai Intl

Nov 21

KIX9:15 amOsaka Kansai Intl

24h 05m

2 stops

SEA4:20 pmSeattle/Tacoma Intl

$665

Find similar

Delta

Sep 10

SEA7:28 amSeattle/Tacoma Intl

21h 32m

2 stops

KIX9:00 pmOsaka Kansai Intl

Sep 20

KIX6:20 pmOsaka Kansai Intl

32h 20m

1 stop

SEA10:40 amSeattle/Tacoma Intl

$676

Find similar

Alaska Airlines flights from State of Washington to Osaka

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

Alaska Airlines

Aug 30

PDX7:40 amPortland

19h 05m

1 stop

KIX6:45 pmOsaka Kansai Intl

Sep 7

KIX8:45 pmOsaka Kansai Intl

25h 15m

1 stop

PDX6:00 amPortland

$712

Find similar

Alaska Airlines

Aug 31

PDX5:55 pmPortland

32h 50m

1 stop

KIX6:45 pmOsaka Kansai Intl

Sep 7

KIX8:45 pmOsaka Kansai Intl

25h 15m

1 stop

PDX6:00 amPortland

$727

Find similar

Alaska Airlines

Sep 26

PDX10:40 amPortland

16h 05m

1 stop

KIX6:45 pmOsaka Kansai Intl

Oct 1

KIX8:45 pmOsaka Kansai Intl

17h 55m

1 stop

PDX10:40 pmPortland

$736

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Mon 9/8

12:50 pm-10:10 am

1 stop29h 20m

Kobe

Tue 9/30

6:40 pm-10:40 am

1 stop32h 00m

$602

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 9/8

12:50 pm-9:00 pm

1 stop16h 10m

Osaka Kansai Intl

Tue 9/30

12:35 pm-7:14 pm

2 stops22h 39m

$610

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 10/28

5:30 am-4:40 pm

1 stop19h 10m

Osaka Kansai Intl

Fri 11/7

2:10 pm-1:20 pm

1 stop16h 10m

$612

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 10/14

4:30 pm-9:50 pm

1 stop13h 20m

Osaka Kansai Intl

Thu 10/16

5:30 pm-2:25 pm

1 stop12h 55m

$614

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 9/9

7:40 pm-4:25 pm

1 stop28h 45m

Osaka Kansai Intl

Tue 9/16

6:05 pm-6:46 pm

1 stop16h 41m

$633

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Sun 8/31

7:40 pm-4:25 pm

1 stop28h 45m

Osaka Kansai Intl

Sat 9/13

6:05 pm-6:46 pm

1 stop16h 41m

$635

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 11/17

3:40 pm-6:10 pm

1 stop33h 30m

Osaka Itami

Wed 12/17

1:00 pm-1:20 pm

1 stop17h 20m

$642

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 1/14

7:05 am-4:40 pm

1 stop16h 35m

Osaka Kansai Intl

Thu 1/22

8:25 am-1:20 pm

1 stop21h 55m

$642

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 9/7

8:37 am-7:45 pm

2 stops19h 08m

Osaka Itami

Fri 9/19

2:35 pm-10:25 am

1 stop11h 50m

$647

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/3

8:37 am-7:45 pm

2 stops19h 08m

Osaka Itami

Fri 9/12

2:35 pm-10:25 am

1 stop11h 50m

$650

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, August 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 $801. If you are unable to visit Osaka during the month of August, then departing from State of Washington during the month October is also very affordable. Most momondo users find prices during this month for around $832.

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 $998 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 $818 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

Best Price Found	$334
Fastest flight time	13h 15m
Direct flights	None
Airports in Osaka	3 airports

The best one-way flight to Osaka from State of Washington in the past 72 hours is $334. The best round-trip flight deal from State of Washington to Osaka found on momondo in the last 72 hours is $602.

The fastest flight from State of Washington to Osaka takes 13h 15m

There are no direct flights from State of Washington to Osaka. Popular non-direct routes for this connection are Portland Airport - Osaka Kansai Intl Airport, Seattle/Tacoma Intl Airport - Osaka Kansai Intl Airport and Seattle/Tacoma Intl Airport - Osaka Itami Airport.

There are 3 airports near Osaka: Osaka Itami (ITM), Osaka Kansai Intl (KIX), Kobe (UKB)

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 13 operators available for flights from Washington to Osaka as of August 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 $648	Free Cancellation	Rating 8.2 473 reviews	Search Asiana Airlines flights
Delta	PriceFrom $649	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights
Air Canada	PriceFrom $669	Free Cancellation	Rating 7.1 9,943 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,545 reviews	Search Japan Airlines flights
ANA	PriceFrom $704	Free Cancellation	Rating 8.4 933 reviews	Search ANA flights
Korean Air	PriceFrom $716	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
China Eastern	PriceFrom $719	Free Cancellation	Rating 7.2 160 reviews	Search China Eastern flights
United Airlines	PriceFrom $797	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $918	Free Cancellation	Rating 9.0 202 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $963	Free Cancellation	Rating 8.4 1,230 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.