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Cheap flights from Seattle to Osaka from $335

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 2/11. 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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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 - 7:30 amSEA-ITM
22h 45m1 stop
ANA Logo
6:00 pm - 1:20 pmITM-SEA
12h 20m1 stop
$640ANA
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Sun, Jan 11 - Sun, Jan 18
ANA Logo
6:03 am - 6:10 pmSEA-ITM
19h 07m2 stops
ANA Logo
2:00 pm - 1:20 pmITM-SEA
16h 20m1 stop
$643ANA
Find Deal
Sun, Jan 11 - Sun, Jan 18
Japan Airlines Logo
12:30 pm - 7:55 pmSEA-ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 2:34 pmITM-SEA
16h 54m2 stops
$644Japan Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
ANA Logo
6:03 am - 6:10 pmSEA-ITM
19h 07m2 stops
ANA Logo
6:00 pm - 1:20 pmITM-SEA
12h 20m1 stop
$649ANA
Find Deal
Wed, Feb 4 - Fri, Feb 20
Japan Airlines Logo
12:30 pm - 7:55 pmSEA-ITM
14h 25m1 stop
Japan Airlines Logo
2:40 pm - 9:55 amITM-SEA
12h 15m1 stop
$651Japan Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
ANA Logo
3:40 pm - 7:30 amSEA-ITM
22h 50m1 stop
ANA Logo
6:00 pm - 1:20 pmITM-SEA
12h 20m1 stop
$657ANA
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Mon, Nov 17 - Thu, Dec 4
United Airlines Logo
6:03 am - 6:10 pmSEA-ITM
19h 07m2 stops
United Airlines Logo
1:00 pm - 3:44 pmITM-SEA
19h 44m2 stops
$670United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
3:40 pm - 6:10 pmSEA-ITM
33h 30m1 stop
United Airlines Logo
1:00 pm - 9:12 pmITM-SEA
25h 12m3 stops
$679United Airlines
Find Deal
Mon, Dec 29 - Tue, Jan 13
American Airlines Logo
6:00 am - 7:20 pmSEA-ITM
20h 20m2 stops
American Airlines Logo
4:30 pm - 6:05 pmITM-SEA
18h 35m2 stops
$683American Airlines
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Tue, Jan 13 - Tue, Jan 20
Multiple Airlines Logo
11:10 pm - 7:55 pmSEA-ITM
27h 45m2 stops
Multiple Airlines Logo
2:40 pm - 9:50 amITM-SEA
12h 10m1 stop
$700Multiple Airlines
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Sat, Nov 29 - Wed, Dec 10

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
ITM2:40 pmOsaka Itami
16h 54m
2 stops
SEA2:34 pmSeattle/Tacoma Intl
$644
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
12h 15m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$651
Find similar
Japan Airlines
Nov 18
SEA6:05 amSeattle/Tacoma Intl
20h 45m
2 stops
ITM7:50 pmOsaka Itami
Dec 4
ITM2:40 pmOsaka Itami
12h 10m
1 stop
SEA9:50 amSeattle/Tacoma Intl
$682
Find similar

ANA flights from Seattle to Osaka Itami Airport

Our best ANA deals on Seattle to Osaka Itami Airport flight tickets
ANA
Jan 11
SEA3:45 pmSeattle/Tacoma Intl
22h 45m
1 stop
ITM7:30 amOsaka Itami
Jan 18
ITM6:00 pmOsaka Itami
12h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$640
Find similar
ANA
Jan 11
SEA6:03 amSeattle/Tacoma Intl
19h 07m
2 stops
ITM6:10 pmOsaka Itami
Jan 18
ITM2:00 pmOsaka Itami
16h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$643
Find similar
ANA
Feb 4
SEA6:03 amSeattle/Tacoma Intl
19h 07m
2 stops
ITM6:10 pmOsaka Itami
Feb 20
ITM6:00 pmOsaka Itami
12h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$649
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 October 14, 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

Sun 1/11

3:45 pm-7:30 am

1 stop22h 45m

Osaka Itami

Sun 1/18

6:00 pm-1:20 pm

1 stop12h 20m

$640

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sun 1/11

6:03 am-6:10 pm

2 stops19h 07m

Osaka Itami

Sun 1/18

2:00 pm-1:20 pm

1 stop16h 20m

$643

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-2:34 pm

2 stops16h 54m

$644

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 2/4

6:03 am-6:10 pm

2 stops19h 07m

Osaka Itami

Fri 2/20

6:00 pm-1:20 pm

1 stop12h 20m

$649

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-9:55 am

1 stop12h 15m

$651

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 11/17

3:40 pm-7:30 am

1 stop22h 50m

Osaka Itami

Thu 12/4

6:00 pm-1:20 pm

1 stop12h 20m

$657

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 1/13

6:03 am-6:10 pm

2 stops19h 07m

Osaka Itami

Tue 1/20

1:00 pm-3:44 pm

2 stops19h 44m

$670

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 12/29

3:40 pm-6:10 pm

1 stop33h 30m

Osaka Itami

Tue 1/13

1:00 pm-9:12 pm

3 stops25h 12m

$679

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 1/13

6:00 am-7:20 pm

2 stops20h 20m

Osaka Itami

Tue 1/20

4:30 pm-6:05 pm

2 stops18h 35m

$683

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Sat 11/29

11:10 pm-7:55 pm

2 stops27h 45m

Osaka Itami

Wed 12/10

2:40 pm-9:50 am

1 stop12h 10m

$700

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

Direct flights

None
There are no direct flights from Seattle to Osaka Itami Airport. There are no popular flight routes from Seattle to Osaka Itami Airport.
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  • How far is Seattle/Tacoma Intl to Osaka Itami by plane?

    There are 4991.4 mi between Seattle/Tacoma Intl and Osaka Itami. 14h 25m 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
984 reviews
Search ANA flights
Japan AirlinesPriceFrom $697Free CancellationRating
8.3
1,578 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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