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Cheap flights from Washington to Osaka from $437

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 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:15 am - 7:55 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 40m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
3:55 pm - 2:37 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
15h 42m2 stops Sapporo Chitose Vancouver Intl
$837Multiple Airlines
Tue, Feb 2 - Tue, Feb 23
Multiple Airlines Logo
8:15 am - 7:55 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 40m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
1:55 pm - 2:37 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 42m2 stops Sapporo Chitose Vancouver Intl
$869Multiple Airlines
Wed, Jan 27 - Fri, Feb 5
Multiple Airlines Logo
10:00 am - 7:55 pmPDX  Portland-ITM Osaka Itami
16h 55m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
2:05 pm - 8:46 pmITM  Osaka Itami-PDX Portland
23h 41m2 stops Tokyo Narita Vancouver Intl
$903Multiple Airlines
Sun, Jan 24 - Wed, Feb 3
Multiple Airlines Logo
10:00 am - 7:55 pmPDX  Portland-ITM Osaka Itami
16h 55m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
2:00 pm - 6:31 pmITM  Osaka Itami-PDX Portland
21h 31m2 stops Tokyo Haneda Vancouver Intl
$935Multiple Airlines
Mon, Feb 1 - Sat, Feb 20
ANA Logo
3:45 pm - 7:30 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
22h 45m1 stop Tokyo Haneda
ANA Logo
2:00 pm - 1:20 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
16h 20m1 stop Tokyo Haneda
$1,086ANA
Wed, Jan 27 - Fri, Feb 5
ANA Logo
3:45 pm - 8:10 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
23h 25m1 stop Tokyo Haneda
ANA Logo
8:20 pm - 8:48 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 28m2 stops Tokyo Haneda San Francisco
$1,095ANA
Wed, Jan 27 - Fri, Feb 5
ANA Logo
4:30 pm - 8:05 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
23h 35m1 stop Tokyo Haneda
ANA Logo
12:50 pm - 2:25 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 35m1 stop Tokyo Haneda
$1,099ANA
Wed, Aug 26 - Thu, Sep 3
Japan Airlines Logo
11:20 am - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
16h 30m2 stops Vancouver Intl Tokyo Narita
Japan Airlines Logo
2:40 pm - 9:50 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
12h 10m1 stop Tokyo Narita
$1,105Japan Airlines
Tue, Oct 20 - Fri, Nov 6
Japan Airlines Logo
1:15 pm - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
14h 35m1 stop Tokyo Narita
Japan Airlines Logo
2:35 pm - 10:35 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
12h 00m1 stop Tokyo Narita
$1,108Japan Airlines
Tue, Sep 8 - Tue, Sep 15
Japan Airlines Logo
1:15 pm - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
14h 35m1 stop Tokyo Narita
Japan Airlines Logo
2:35 pm - 10:35 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
12h 00m1 stop Tokyo Narita
$1,108Japan Airlines
Sun, Sep 13 - Fri, Oct 2

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Japan Airlines flights from State of Washington to Osaka Itami Airport

Our best Japan Airlines deals on State of Washington to Osaka Itami Airport flight tickets
Japan Airlines
Oct 20
SEA11:20 amSeattle/Tacoma Intl
16h 30m
2 stops
ITM7:50 pmOsaka Itami
Nov 6
ITM2:40 pmOsaka Itami
12h 10m
1 stop
SEA9:50 amSeattle/Tacoma Intl
$1,105
Japan Airlines
Sep 8
SEA1:15 pmSeattle/Tacoma Intl
14h 35m
1 stop
ITM7:50 pmOsaka Itami
Sep 15
ITM2:35 pmOsaka Itami
12h 00m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$1,108
Japan Airlines
Sep 8
SEA1:15 pmSeattle/Tacoma Intl
14h 35m
1 stop
ITM7:50 pmOsaka Itami
Sep 15
ITM12:25 pmOsaka Itami
19h 33m
2 stops
SEA3:58 pmSeattle/Tacoma Intl
$1,120

ANA flights from State of Washington to Osaka Itami Airport

Our best ANA deals on State of Washington to Osaka Itami Airport flight tickets
ANA
Jan 27
SEA3:45 pmSeattle/Tacoma Intl
22h 45m
1 stop
ITM7:30 amOsaka Itami
Feb 5
ITM2:00 pmOsaka Itami
16h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,086
ANA
Jan 27
SEA3:45 pmSeattle/Tacoma Intl
23h 25m
1 stop
ITM8:10 amOsaka Itami
Feb 5
ITM8:20 pmOsaka Itami
17h 28m
2 stops
SEA8:48 pmSeattle/Tacoma Intl
$1,095
ANA
Aug 26
SEA4:30 pmSeattle/Tacoma Intl
23h 35m
1 stop
ITM8:05 amOsaka Itami
Sep 3
ITM12:50 pmOsaka Itami
17h 35m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$1,099

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Osaka Itami Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 9, 2026.
Use the filters below to find and compare flights from Washington to Osaka Itami Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 2/2

8:15 am-7:55 pm

2 stops18h 40m

Osaka Itami

Tue 2/23

3:55 pm-2:37 pm

2 stops15h 42m

$837

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

8:15 am-7:55 pm

2 stops18h 40m

Osaka Itami

Fri 2/5

1:55 pm-2:37 pm

2 stops17h 42m

$869

PortlandOsaka

PDX Portland - ITM Osaka Itami

PDXITM

Portland

Sun 1/24

10:00 am-7:55 pm

2 stops16h 55m

Osaka Itami

Wed 2/3

2:05 pm-8:46 pm

2 stops23h 41m

$903

PortlandOsaka

PDX Portland - ITM Osaka Itami

PDXITM

Portland

Mon 2/1

10:00 am-7:55 pm

2 stops16h 55m

Osaka Itami

Sat 2/20

2:00 pm-6:31 pm

2 stops21h 31m

$935

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

3:45 pm-7:30 am

1 stop22h 45m

Osaka Itami

Fri 2/5

2:00 pm-1:20 pm

1 stop16h 20m

$1,086

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

3:45 pm-8:10 am

1 stop23h 25m

Osaka Itami

Fri 2/5

8:20 pm-8:48 pm

2 stops17h 28m

$1,095

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 8/26

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Thu 9/3

12:50 pm-2:25 pm

1 stop17h 35m

$1,099

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 10/20

11:20 am-7:50 pm

2 stops16h 30m

Osaka Itami

Fri 11/6

2:40 pm-9:50 am

1 stop12h 10m

$1,105
Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 9/8

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Tue 9/15

2:35 pm-10:35 am

1 stop12h 00m

$1,108

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Sun 9/13

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Fri 10/2

2:35 pm-10:35 am

1 stop12h 00m

$1,108

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Osaka from

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

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

What is the cheapest month to fly to Osaka Itami Airport?

If you are unable to visit Osaka Itami Airport during the month of January, then departing from State of Washington during the month August is also very affordable. Most momondo users find prices during this month for around $687.

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

You could potentially save up to 35% on your flight if you consider stops on a State of Washington to Osaka Itami Airport flight.

Cheap State of Washington to Osaka Itami Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Osaka Itami Airport

Fastest flight time

14h 25m

Direct flights

None
The fastest flight from State of Washington to Osaka Itami Airport takes 14h 25m
There are no direct flights from State of Washington to Osaka Itami Airport. There are no popular flight routes from State of Washington to Osaka Itami Airport.
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Frequently asked questions about flying from Washington to Osaka Itami Airport

  • When did momondo last update prices for flights from Washington to Osaka Itami Airport?

    Prices for flights from Washington to Osaka Itami Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Osaka Itami Airport?

  • How old do you have to be to fly from Washington to Osaka Itami Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Osaka Itami Airport.

  • What documentation or ID do you need to fly to Osaka Itami Airport?

    The travel and health documents you'll need for your trip to Osaka Itami Airport 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 Itami Airport. 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 Itami Airport

Compare and see reviews for airlines that fly from State of Washington to Osaka Itami Airport with momondo
Airline
Rating
Free Cancellation
Price
ANAPriceFrom $659Free CancellationRating
8.3
1,293 reviews
Search ANA flights
Japan AirlinesPriceFrom $788Free CancellationRating
8.3
1,893 reviews
Search Japan Airlines flights

Traveling to a place near Osaka?

Book flights to Osaka if you plan to visit one of these locations
Nara
Nishinomiya

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 provides multiple filters to help you find the best flight to Osaka from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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