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Cheap flights from Seattle to Osaka from $334

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 1/29. 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
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.
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
11:30 am - 9:55 am
ITM
-
SEA
15h 25m1 stop
$622Japan Airlines
Tue, Jan 13 - Tue, Jan 20
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
9:35 am - 9:55 am
ITM
-
SEA
17h 20m1 stop
$625Japan Airlines
Tue, Jan 13 - Tue, Jan 20
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 8:58 am
ITM
-
SEA
35h 18m2 stops
$628Japan Airlines
Tue, Jan 13 - Tue, Jan 20
Japan Airlines Logo
12:30 pm - 7:50 pm
SEA
-
ITM
14h 20m1 stop
Japan Airlines Logo
2:35 pm - 10:55 am
ITM
-
SEA
12h 20m1 stop
$630Japan Airlines
Tue, Mar 3 - Tue, Mar 10
Japan Airlines Logo
12:30 pm - 8:30 pm
SEA
-
ITM
15h 00m1 stop
Japan Airlines Logo
10:45 am - 9:55 am
ITM
-
SEA
16h 10m1 stop
$634Japan Airlines
Fri, Feb 27 - Sun, Mar 8
Japan Airlines Logo
11:43 am - 8:05 pm
SEA
-
ITM
39h 22m2 stops
Japan Airlines Logo
8:10 pm - 4:04 pm
ITM
-
SEA
36h 54m2 stops
$635Japan Airlines
Wed, Jan 28 - Tue, Feb 17
ANA Logo
3:45 pm - 8:10 am
SEA
-
ITM
23h 25m1 stop
ANA Logo
10:00 am - 1:20 pm
ITM
-
SEA
20h 20m1 stop
$636ANA
Sat, Jan 31 - Sat, Feb 7
Japan Airlines Logo
8:25 am - 8:05 pm
SEA
-
ITM
18h 40m2 stops
Japan Airlines Logo
2:40 pm - 9:55 am
ITM
-
SEA
12h 15m1 stop
$637Japan Airlines
Wed, Jan 14 - Wed, Jan 21
ANA Logo
3:45 pm - 7:30 am
SEA
-
ITM
22h 45m1 stop
ANA Logo
6:00 pm - 1:20 pm
ITM
-
SEA
12h 20m1 stop
$638ANA
Sat, Feb 7 - Sun, Feb 15
ANA Logo
3:45 pm - 6:10 pm
SEA
-
ITM
33h 25m1 stop
ANA Logo
8:20 pm - 1:20 pm
ITM
-
SEA
34h 00m1 stop
$639ANA
Fri, Jan 16 - Fri, Jan 23

Japan Airlines flights from Seattle to Osaka Itami Airport

Our best Japan Airlines deals on Seattle to Osaka Itami Airport flight tickets
Japan Airlines
Jan 13
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Jan 20
ITM11:30 amOsaka Itami
15h 25m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$622
Find similar
Japan Airlines
Jan 13
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Jan 20
ITM9:35 amOsaka Itami
17h 20m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$625
Find similar
Japan Airlines
Jan 13
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Jan 20
ITM2:40 pmOsaka Itami
35h 18m
2 stops
SEA8:58 amSeattle/Tacoma Intl
$628
Find similar

ANA flights from Seattle to Osaka Itami Airport

Our best ANA deals on Seattle to Osaka Itami Airport flight tickets
ANA
Jan 31
SEA3:45 pmSeattle/Tacoma Intl
23h 25m
1 stop
ITM8:10 amOsaka Itami
Feb 7
ITM10:00 amOsaka Itami
20h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$636
Find similar
ANA
Feb 7
SEA3:45 pmSeattle/Tacoma Intl
22h 45m
1 stop
ITM7:30 amOsaka Itami
Feb 15
ITM6:00 pmOsaka Itami
12h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$638
Find similar
ANA
Jan 11
SEA3:45 pmSeattle/Tacoma Intl
24h 25m
1 stop
ITM9:10 amOsaka Itami
Jan 18
ITM9:00 amOsaka Itami
21h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$647
Find similar

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 December 18, 2025.
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

Tue 1/13

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Tue 1/20

11:30 am-9:55 am

1 stop15h 25m

$622

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 1/13

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Tue 1/20

9:35 am-9:55 am

1 stop17h 20m

$625

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 1/13

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Tue 1/20

2:40 pm-8:58 am

2 stops35h 18m

$628

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 3/3

12:30 pm-7:50 pm

1 stop14h 20m

Osaka Itami

Tue 3/10

2:35 pm-10:55 am

1 stop12h 20m

$630

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Fri 2/27

12:30 pm-8:30 pm

1 stop15h 00m

Osaka Itami

Sun 3/8

10:45 am-9:55 am

1 stop16h 10m

$634

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 1/28

11:43 am-8:05 pm

2 stops39h 22m

Osaka Itami

Tue 2/17

8:10 pm-4:04 pm

2 stops36h 54m

$635

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 1/31

3:45 pm-8:10 am

1 stop23h 25m

Osaka Itami

Sat 2/7

10:00 am-1:20 pm

1 stop20h 20m

$636

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 1/14

8:25 am-8:05 pm

2 stops18h 40m

Osaka Itami

Wed 1/21

2:40 pm-9:55 am

1 stop12h 15m

$637

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 2/7

3:45 pm-7:30 am

1 stop22h 45m

Osaka Itami

Sun 2/15

6:00 pm-1:20 pm

1 stop12h 20m

$638

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Fri 1/16

3:45 pm-6:10 pm

1 stop33h 25m

Osaka Itami

Fri 1/23

8:20 pm-1:20 pm

1 stop34h 00m

$639

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

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

If you are unable to visit Osaka Itami Airport during the month of March, then departing from Seattle during the month September is also very affordable. Most momondo users find prices during this month for around $742.

What is the cheapest day to depart on your flight to Osaka Itami Airport?

The cheapest day to depart on your flight to Osaka Itami Airport is on a Thursday when prices can be found for as low as $1,274. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Osaka Itami Airport is Wednesday, with ticket prices averaging around $2,058.

What is the cheapest time of day to depart on your flight to Osaka Itami Airport?

Flying to Osaka Itami Airport from Seattle in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,335 when looking at flights departing in the morning. Flights in the afternoon are often more expensive with an average ticket price of $1,636.

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

You could potentially save up to 27% 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
1,027 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,662 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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