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Cheap flights from Seattle to Osaka from $397

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 4/20. 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
8:38 am - 6:55 pm
SEA
-
ITM
18h 17m
2 stops
ANA Logo
3:00 pm - 2:25 pm
ITM
-
SEA
15h 25m
1 stop
$747ANA
Wed, Sep 2 - Wed, Sep 16
ANA Logo
4:30 pm - 8:05 am
SEA
-
ITM
23h 35m
1 stop
ANA Logo
4:40 pm - 2:25 pm
ITM
-
SEA
13h 45m
1 stop
$748ANA
Wed, Sep 2 - Wed, Sep 16
United Airlines Logo
4:30 pm - 5:05 pm
SEA
-
ITM
32h 35m
1 stop
United Airlines Logo
12:50 pm - 2:25 pm
ITM
-
SEA
17h 35m
1 stop
$755United Airlines
Mon, Aug 24 - Thu, Sep 3
Japan Airlines Logo
1:25 pm - 7:30 am
SEA
-
ITM
26h 05m
1 stop
Japan Airlines Logo
7:25 am - 10:35 am
ITM
-
SEA
19h 10m
1 stop
$764Japan Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
4:30 pm - 5:05 pm
SEA
-
ITM
32h 35m
1 stop
United Airlines Logo
12:50 pm - 2:22 pm
ITM
-
SEA
17h 32m
2 stops
$765United Airlines
Mon, Aug 24 - Tue, Sep 1
ANA Logo
4:30 pm - 8:05 am
SEA
-
ITM
23h 35m
1 stop
ANA Logo
12:55 pm - 2:25 pm
ITM
-
SEA
17h 30m
1 stop
$769ANA
Sun, May 3 - Tue, May 19
United Airlines Logo
7:06 am - 5:05 pm
SEA
-
ITM
17h 59m
2 stops
United Airlines Logo
12:50 pm - 2:22 pm
ITM
-
SEA
17h 32m
2 stops
$770United Airlines
Tue, Aug 25 - Tue, Sep 1
ANA Logo
4:30 pm - 7:25 am
SEA
-
ITM
22h 55m
1 stop
ANA Logo
5:40 pm - 2:25 pm
ITM
-
SEA
12h 45m
1 stop
$776ANA
Sun, Aug 23 - Tue, Sep 1
ANA Logo
4:30 pm - 8:05 am
SEA
-
ITM
23h 35m
1 stop
ANA Logo
12:00 pm - 2:25 pm
ITM
-
SEA
18h 25m
1 stop
$777ANA
Sat, May 2 - Tue, May 12
ANA Logo
6:29 am - 6:10 pm
SEA
-
ITM
19h 41m
2 stops
ANA Logo
12:50 pm - 8:43 pm
ITM
-
SEA
23h 53m
2 stops
$779ANA
Wed, Sep 2 - Wed, Sep 16

ANA flights from Seattle to Osaka Itami Airport

Our best ANA deals on Seattle to Osaka Itami Airport flight tickets
ANA
Sep 2
SEA8:38 amSeattle/Tacoma Intl
18h 17m
2 stops
ITM6:55 pmOsaka Itami
Sep 16
ITM3:00 pmOsaka Itami
15h 25m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$747
ANA
Sep 2
SEA4:30 pmSeattle/Tacoma Intl
23h 35m
1 stop
ITM8:05 amOsaka Itami
Sep 16
ITM4:40 pmOsaka Itami
13h 45m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$748
ANA
May 3
SEA4:30 pmSeattle/Tacoma Intl
23h 35m
1 stop
ITM8:05 amOsaka Itami
May 19
ITM12:55 pmOsaka Itami
17h 30m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$769

United Airlines flights from Seattle to Osaka Itami Airport

Our best United Airlines deals on Seattle to Osaka Itami Airport flight tickets
United Airlines
Aug 24
SEA4:30 pmSeattle/Tacoma Intl
32h 35m
1 stop
ITM5:05 pmOsaka Itami
Sep 3
ITM12:50 pmOsaka Itami
17h 35m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$755
United Airlines
Aug 24
SEA4:30 pmSeattle/Tacoma Intl
32h 35m
1 stop
ITM5:05 pmOsaka Itami
Sep 1
ITM12:50 pmOsaka Itami
17h 32m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$765
United Airlines
Aug 25
SEA7:06 amSeattle/Tacoma Intl
17h 59m
2 stops
ITM5:05 pmOsaka Itami
Sep 1
ITM12:50 pmOsaka Itami
17h 32m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$770

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 March 13, 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
Quickest round-trip

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/2

8:38 am-6:55 pm

2 stops18h 17m

Osaka Itami

Wed 9/16

3:00 pm-2:25 pm

1 stop15h 25m

$747

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/2

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Wed 9/16

4:40 pm-2:25 pm

1 stop13h 45m

$748

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 8/24

4:30 pm-5:05 pm

1 stop32h 35m

Osaka Itami

Thu 9/3

12:50 pm-2:25 pm

1 stop17h 35m

$755

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 8/26

1:25 pm-7:30 am

1 stop26h 05m

Osaka Itami

Wed 9/2

7:25 am-10:35 am

1 stop19h 10m

$764

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 8/24

4:30 pm-5:05 pm

1 stop32h 35m

Osaka Itami

Tue 9/1

12:50 pm-2:22 pm

2 stops17h 32m

$765

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 5/3

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Tue 5/19

12:55 pm-2:25 pm

1 stop17h 30m

$769

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 8/25

7:06 am-5:05 pm

2 stops17h 59m

Osaka Itami

Tue 9/1

12:50 pm-2:22 pm

2 stops17h 32m

$770

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 8/23

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Tue 9/1

5:40 pm-2:25 pm

1 stop12h 45m

$776

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 5/2

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Tue 5/12

12:00 pm-2:25 pm

1 stop18h 25m

$777

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/2

6:29 am-6:10 pm

2 stops19h 41m

Osaka Itami

Wed 9/16

12:50 pm-8:43 pm

2 stops23h 53m

$779

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 52% 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
1,125 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,730 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.

An easier way to manage your Osaka Itami Airport trip

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