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Cheap flights from Seattle to Osaka from $339

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 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
ANA Logo
3:45 pm - 4:10 pm
SEA
-
ITM
31h 25m
1 stop
ANA Logo
2:00 pm - 1:20 pm
ITM
-
SEA
16h 20m
1 stop
$639ANA
Sat, Feb 28 - Sat, Mar 7
ANA Logo
4:45 pm - 7:30 am
SEA
-
ITM
22h 45m
1 stop
ANA Logo
6:00 pm - 2:20 pm
ITM
-
SEA
12h 20m
1 stop
$653ANA
Tue, Mar 10 - Tue, Mar 17
ANA Logo
7:15 am - 6:55 pm
SEA
-
ITM
18h 40m
2 stops
ANA Logo
4:50 pm - 1:20 pm
ITM
-
SEA
13h 30m
1 stop
$661ANA
Sun, Feb 22 - Thu, Mar 5
ANA Logo
3:45 pm - 9:10 am
SEA
-
ITM
24h 25m
1 stop
ANA Logo
12:00 pm - 2:20 pm
ITM
-
SEA
18h 20m
1 stop
$662ANA
Tue, Feb 24 - Tue, Mar 17
ANA Logo
3:45 pm - 12:10 pm
SEA
-
ITM
27h 25m
1 stop
ANA Logo
8:20 pm - 2:20 pm
ITM
-
SEA
34h 00m
1 stop
$671ANA
Mon, Mar 2 - Mon, Mar 16
Japan Airlines Logo
8:41 am - 7:50 pm
SEA
-
ITM
19h 09m
2 stops
Japan Airlines Logo
4:55 pm - 10:35 am
ITM
-
SEA
33h 40m
1 stop
$677Japan Airlines
Tue, Apr 21 - Wed, Apr 29
Japan Airlines Logo
1:15 pm - 7:50 pm
SEA
-
ITM
14h 35m
1 stop
Japan Airlines Logo
4:55 pm - 10:35 am
ITM
-
SEA
33h 40m
1 stop
$688Japan Airlines
Tue, Apr 21 - Wed, Apr 29
Japan Airlines Logo
1:25 pm - 8:25 pm
SEA
-
ITM
15h 00m
1 stop
Japan Airlines Logo
4:20 pm - 10:50 am
ITM
-
SEA
34h 30m
1 stop
$691Japan Airlines
Mon, Jul 20 - Tue, Aug 4
ANA Logo
4:30 pm - 9:20 am
SEA
-
ITM
24h 50m
1 stop
ANA Logo
3:30 pm - 2:25 pm
ITM
-
SEA
14h 55m
1 stop
$713ANA
Tue, Jul 7 - Wed, Jul 22
Japan Airlines Logo
1:15 pm - 7:50 pm
SEA
-
ITM
14h 35m
1 stop
Japan Airlines Logo
1:30 pm - 10:35 am
ITM
-
SEA
13h 05m
1 stop
$714Japan Airlines
Mon, Apr 27 - Wed, May 6

ANA flights from Seattle to Osaka Itami Airport

Our best ANA deals on Seattle to Osaka Itami Airport flight tickets
ANA
Feb 28
SEA3:45 pmSeattle/Tacoma Intl
31h 25m
1 stop
ITM4:10 pmOsaka Itami
Mar 7
ITM2:00 pmOsaka Itami
16h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$639
ANA
Mar 10
SEA4:45 pmSeattle/Tacoma Intl
22h 45m
1 stop
ITM7:30 amOsaka Itami
Mar 17
ITM6:00 pmOsaka Itami
12h 20m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$653
ANA
Feb 24
SEA3:45 pmSeattle/Tacoma Intl
23h 25m
1 stop
ITM8:10 amOsaka Itami
Mar 17
ITM6:00 pmOsaka Itami
12h 20m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$662

Japan Airlines flights from Seattle to Osaka Itami Airport

Our best Japan Airlines deals on Seattle to Osaka Itami Airport flight tickets
Japan Airlines
Apr 21
SEA8:41 amSeattle/Tacoma Intl
19h 09m
2 stops
ITM7:50 pmOsaka Itami
Apr 29
ITM4:55 pmOsaka Itami
33h 40m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$677
Japan Airlines
Apr 21
SEA1:15 pmSeattle/Tacoma Intl
14h 35m
1 stop
ITM7:50 pmOsaka Itami
Apr 29
ITM4:55 pmOsaka Itami
33h 40m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$688
Japan Airlines
Jul 20
SEA1:25 pmSeattle/Tacoma Intl
15h 00m
1 stop
ITM8:25 pmOsaka Itami
Aug 4
ITM4:20 pmOsaka Itami
34h 30m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$691

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 February 12, 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

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 2/28

3:45 pm-4:10 pm

1 stop31h 25m

Osaka Itami

Sat 3/7

2:00 pm-1:20 pm

1 stop16h 20m

$639

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 3/10

4:45 pm-7:30 am

1 stop22h 45m

Osaka Itami

Tue 3/17

6:00 pm-2:20 pm

1 stop12h 20m

$653

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 2/22

7:15 am-6:55 pm

2 stops18h 40m

Osaka Itami

Thu 3/5

4:50 pm-1:20 pm

1 stop13h 30m

$661

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 2/24

3:45 pm-9:10 am

1 stop24h 25m

Osaka Itami

Tue 3/17

12:00 pm-2:20 pm

1 stop18h 20m

$662

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 3/2

3:45 pm-12:10 pm

1 stop27h 25m

Osaka Itami

Mon 3/16

8:20 pm-2:20 pm

1 stop34h 00m

$671

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 4/21

8:41 am-7:50 pm

2 stops19h 09m

Osaka Itami

Wed 4/29

4:55 pm-10:35 am

1 stop33h 40m

$677

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 4/21

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Wed 4/29

4:55 pm-10:35 am

1 stop33h 40m

$688

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 7/20

1:25 pm-8:25 pm

1 stop15h 00m

Osaka Itami

Tue 8/4

4:20 pm-10:50 am

1 stop34h 30m

$691

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 7/7

4:30 pm-9:20 am

1 stop24h 50m

Osaka Itami

Wed 7/22

3:30 pm-2:25 pm

1 stop14h 55m

$713

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 4/27

1:15 pm-7:50 pm

1 stop14h 35m

Osaka Itami

Wed 5/6

1:30 pm-10:35 am

1 stop13h 05m

$714

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 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

Can stopping save me money on Seattle to Osaka Itami Airport flights?

You could potentially save up to 56% 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

14h 20m

Direct flights

None
The fastest flight from Seattle to Osaka Itami Airport takes 14h 20m
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

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

    There are 4991.4 mi between Seattle/Tacoma Intl and Osaka Itami. 14h 20m 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
8.4
1,090 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,704 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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