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Cheap flights from Seattle to Osaka from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Osaka departing on 8/12. 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 Seattle to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:30 pm - 7:35 am
SEA
-
ITM
23h 05m
1 stop
Multiple Airlines Logo
2:00 pm - 1:00 pm
ITM
-
SEA
39h 00m
2 stops
$1,063Multiple Airlines
Mon, Sep 7 - Mon, Sep 21
Air Canada Logo
7:20 pm - 6:55 pm
SEA
-
ITM
31h 35m
2 stops
Air Canada Logo
2:00 pm - 2:22 pm
ITM
-
SEA
16h 22m
2 stops
$1,068Air Canada
Sun, Sep 6 - Thu, Sep 10
Air Canada Logo
5:50 am - 6:55 pm
SEA
-
ITM
21h 05m
2 stops
Air Canada Logo
2:00 pm - 2:22 pm
ITM
-
SEA
16h 22m
2 stops
$1,080Air Canada
Mon, Sep 7 - Mon, Sep 21
Multiple Airlines Logo
4:30 pm - 7:30 am
SEA
-
ITM
23h 00m
1 stop
Multiple Airlines Logo
2:35 pm - 9:40 pm
ITM
-
SEA
23h 05m
2 stops
$1,089Multiple Airlines
Wed, Aug 26 - Wed, Sep 2
Multiple Airlines Logo
4:30 pm - 7:25 am
SEA
-
ITM
22h 55m
1 stop
Multiple Airlines Logo
12:50 pm - 8:13 am
ITM
-
SEA
35h 23m
2 stops
$1,102Multiple Airlines
Thu, Aug 13 - Mon, Aug 24
Multiple Airlines Logo
4:30 pm - 4:00 pm
SEA
-
ITM
31h 30m
1 stop
Multiple Airlines Logo
2:00 pm - 8:39 pm
ITM
-
SEA
22h 39m
2 stops
$1,119Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
4:30 pm - 7:25 am
SEA
-
ITM
22h 55m
1 stop
Multiple Airlines Logo
12:30 pm - 9:49 pm
ITM
-
SEA
25h 19m
2 stops
$1,123Multiple Airlines
Tue, Oct 13 - Tue, Oct 27
Multiple Airlines Logo
4:30 pm - 7:25 am
SEA
-
ITM
22h 55m
1 stop
Multiple Airlines Logo
2:00 pm - 7:39 pm
ITM
-
SEA
21h 39m
2 stops
$1,126Multiple Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
4:30 pm - 7:25 am
SEA
-
ITM
22h 55m
1 stop
Multiple Airlines Logo
2:00 pm - 9:39 pm
ITM
-
SEA
23h 39m
2 stops
$1,128Multiple Airlines
Mon, Sep 14 - Wed, Sep 23
Multiple Airlines Logo
1:15 pm - 6:55 pm
SEA
-
ITM
13h 40m
1 stop
Multiple Airlines Logo
1:25 pm - 7:39 pm
ITM
-
SEA
22h 14m
2 stops
$1,139Multiple Airlines
Sat, Sep 5 - Thu, Sep 10

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Japan Airlines flights from Seattle to Osaka Itami Airport

Our best Japan Airlines deals on Seattle to Osaka Itami Airport flight tickets
Japan Airlines
Aug 18
SEA1:25 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:50 pmOsaka Itami
Aug 26
ITM2:30 pmOsaka Itami
12h 20m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$1,153
Japan Airlines
Aug 18
SEA7:03 amSeattle/Tacoma Intl
20h 42m
2 stops
ITM7:45 pmOsaka Itami
Aug 26
ITM2:30 pmOsaka Itami
12h 20m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$1,162
Japan Airlines
Aug 12
SEA1:25 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:50 pmOsaka Itami
Aug 19
ITM1:25 pmOsaka Itami
18h 42m
2 stops
SEA4:07 pmSeattle/Tacoma Intl
$1,166

American Airlines flights from Seattle to Osaka Itami Airport

Our best American Airlines deals on Seattle to Osaka Itami Airport flight tickets
American Airlines
Aug 2
SEA1:25 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:50 pmOsaka Itami
Aug 14
ITM2:30 pmOsaka Itami
18h 02m
2 stops
SEA4:32 pmSeattle/Tacoma Intl
$1,215
American Airlines
Aug 18
SEA7:11 amSeattle/Tacoma Intl
20h 39m
2 stops
ITM7:50 pmOsaka Itami
Aug 26
ITM7:25 amOsaka Itami
19h 45m
2 stops
SEA11:10 amSeattle/Tacoma Intl
$1,219

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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 July 15, 2026.
Use the filters below to find and compare flights from Seattle to Osaka Itami Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 9/7

4:30 pm-7:35 am

1 stop23h 05m

Osaka Itami

Mon 9/21

2:00 pm-1:00 pm

2 stops39h 00m

$1,063

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 9/6

7:20 pm-6:55 pm

2 stops31h 35m

Osaka Itami

Thu 9/10

2:00 pm-2:22 pm

2 stops16h 22m

$1,068

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 9/7

5:50 am-6:55 pm

2 stops21h 05m

Osaka Itami

Mon 9/21

2:00 pm-2:22 pm

2 stops16h 22m

$1,080

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 8/26

4:30 pm-7:30 am

1 stop23h 00m

Osaka Itami

Wed 9/2

2:35 pm-9:40 pm

2 stops23h 05m

$1,089

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Thu 8/13

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Mon 8/24

12:50 pm-8:13 am

2 stops35h 23m

$1,102

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Thu 9/3

4:30 pm-4:00 pm

1 stop31h 30m

Osaka Itami

Thu 9/10

2:00 pm-8:39 pm

2 stops22h 39m

$1,119

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 10/13

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Tue 10/27

12:30 pm-9:49 pm

2 stops25h 19m

$1,123

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 8/31

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Thu 9/10

2:00 pm-7:39 pm

2 stops21h 39m

$1,126

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 9/14

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Wed 9/23

2:00 pm-9:39 pm

2 stops23h 39m

$1,128
Quickest round-trip

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 9/5

1:15 pm-6:55 pm

1 stop13h 40m

Osaka Itami

Thu 9/10

1:25 pm-7:39 pm

2 stops22h 14m

$1,139

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Osaka from

How to get the cheapest flight ticket from Seattle 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 typical price of a round-trip flight between Seattle and Osaka Itami Airport?

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 Seattle 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 Seattle to Osaka Itami Airport flights?

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

When to book flights from Seattle to Osaka Itami Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Osaka Itami Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Osaka Itami Airport (SEA to ITM) flight deals and tips

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

Fastest flight time

13h 40m

Direct flights

None
The fastest flight from Seattle to Osaka Itami Airport takes 13h 40m
There are no direct flights from Seattle to Osaka Itami Airport. There are no popular flight routes from Seattle to Osaka Itami Airport.
Search flight deals

Frequently asked questions about flying from Seattle to Osaka Itami Airport

  • How far is Seattle/Tacoma Intl to Osaka Itami by plane?

    There are 4991.4 mi between Seattle/Tacoma Intl and Osaka Itami. 13h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Osaka Itami Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Osaka Itami Airport were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Osaka Itami Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Osaka Itami Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Osaka Itami Airport.

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

    The necessary travel and health documents for your Osaka Itami Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Osaka Itami Airport?

Best airlines flying from Seattle to Osaka Itami Airport

Compare and see reviews for airlines that fly from Seattle to Osaka Itami Airport with momondo
Airline
Rating
Free Cancellation
Price
ANAPriceFrom $659Free CancellationRating
8.3
1,271 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,876 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 Seattle to Osaka?

It is quick and easy to find Seattle to Osaka flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Osaka that suits you.

Can I find flights from Seattle to Osaka with flexible booking policies on momondo?

All flight searches from Seattle to Osaka on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Osaka?

Once all potential Seattle to Osaka flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Osaka right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Osaka from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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