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Cheap flights from Seattle to Osaka from $340

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 1/16. 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
2:40 pm - 9:55 am
ITM
-
SEA
12h 15m1 stop
$620Japan Airlines
Fri, Jan 30 - Tue, Feb 10
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 2:34 pm
ITM
-
SEA
16h 54m2 stops
$623Japan Airlines
Fri, Jan 30 - Tue, Feb 10
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
1:40 pm - 9:55 am
ITM
-
SEA
13h 15m1 stop
$625Japan Airlines
Mon, Jan 12 - Wed, Jan 21
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 - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 9:55 am
ITM
-
SEA
12h 15m1 stop
$630Japan Airlines
Mon, Feb 9 - Mon, Feb 16
ANA Logo
3:45 pm - 12:10 pm
SEA
-
ITM
27h 25m1 stop
ANA Logo
8:20 pm - 1:20 pm
ITM
-
SEA
34h 00m1 stop
$634ANA
Fri, Jan 16 - Fri, Jan 23
Japan Airlines Logo
11:43 am - 8:05 pm
SEA
-
ITM
39h 22m2 stops
Japan Airlines Logo
2:30 pm - 8:58 am
ITM
-
SEA
35h 28m2 stops
$635Japan Airlines
Mon, Jan 12 - Wed, Jan 21
ANA Logo
3:45 pm - 8:10 am
SEA
-
ITM
23h 25m1 stop
ANA Logo
6:00 pm - 1:20 pm
ITM
-
SEA
12h 20m1 stop
$636ANA
Sat, Jan 17 - Sat, Jan 24
Japan Airlines Logo
11:43 am - 8:05 pm
SEA
-
ITM
39h 22m2 stops
Japan Airlines Logo
9:35 am - 4:04 pm
ITM
-
SEA
23h 29m2 stops
$637Japan Airlines
Wed, Jan 28 - Tue, Feb 17
Japan Airlines Logo
12:30 pm - 7:55 pm
SEA
-
ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 9:55 am
ITM
-
SEA
12h 15m1 stop
$638Japan Airlines
Thu, Jan 29 - Mon, Feb 16

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 30
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Feb 10
ITM2:40 pmOsaka Itami
12h 15m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$620
Find similar
Japan Airlines
Jan 30
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Feb 10
ITM2:40 pmOsaka Itami
16h 54m
2 stops
SEA2:34 pmSeattle/Tacoma Intl
$623
Find similar
Japan Airlines
Jan 12
SEA12:30 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:55 pmOsaka Itami
Jan 21
ITM1:40 pmOsaka Itami
13h 15m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$625
Find similar

ANA flights from Seattle to Osaka Itami Airport

Our best ANA deals on Seattle to Osaka Itami Airport flight tickets
ANA
Jan 16
SEA3:45 pmSeattle/Tacoma Intl
27h 25m
1 stop
ITM12:10 pmOsaka Itami
Jan 23
ITM8:20 pmOsaka Itami
34h 00m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$634
Find similar
ANA
Jan 17
SEA3:45 pmSeattle/Tacoma Intl
23h 25m
1 stop
ITM8:10 amOsaka Itami
Jan 24
ITM6:00 pmOsaka Itami
12h 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 13
ITM8:20 pmOsaka Itami
34h 00m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$639
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 4, 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

Fri 1/30

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Tue 2/10

2:40 pm-9:55 am

1 stop12h 15m

$620

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Fri 1/30

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Tue 2/10

2:40 pm-2:34 pm

2 stops16h 54m

$623

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 1/12

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Wed 1/21

1:40 pm-9:55 am

1 stop13h 15m

$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

Mon 2/9

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Mon 2/16

2:40 pm-9:55 am

1 stop12h 15m

$630

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Fri 1/16

3:45 pm-12:10 pm

1 stop27h 25m

Osaka Itami

Fri 1/23

8:20 pm-1:20 pm

1 stop34h 00m

$634

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 1/12

11:43 am-8:05 pm

2 stops39h 22m

Osaka Itami

Wed 1/21

2:30 pm-8:58 am

2 stops35h 28m

$635

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 1/17

3:45 pm-8:10 am

1 stop23h 25m

Osaka Itami

Sat 1/24

6:00 pm-1:20 pm

1 stop12h 20m

$636

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 1/28

11:43 am-8:05 pm

2 stops39h 22m

Osaka Itami

Tue 2/17

9:35 am-4:04 pm

2 stops23h 29m

$637

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Thu 1/29

12:30 pm-7:55 pm

1 stop14h 25m

Osaka Itami

Mon 2/16

2:40 pm-9:55 am

1 stop12h 15m

$638

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 November, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $768.

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.

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 $687Free CancellationRating
8.4
1,017 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,638 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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