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Cheap flights from Seattle to Osaka from $530

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 8/16. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:15 am - 7:55 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 40m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
1:55 pm - 2:37 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 42m2 stops Sapporo Chitose Vancouver Intl
$869Multiple Airlines
Wed, Jan 27 - Fri, Feb 5
Multiple Airlines Logo
8:15 am - 7:55 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 40m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
2:05 pm - 2:37 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 32m2 stops Tokyo Narita Vancouver Intl
$947Multiple Airlines
Mon, Jan 11 - Mon, Jan 25
Multiple Airlines Logo
10:10 am - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
16h 40m2 stops Vancouver Intl Sapporo Chitose
Multiple Airlines Logo
2:05 pm - 2:37 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 32m2 stops Tokyo Narita Vancouver Intl
$978Multiple Airlines
Mon, Jan 11 - Mon, Feb 8
Multiple Airlines Logo
10:10 am - 7:55 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
16h 45m2 stops Vancouver Intl Tokyo Narita
Multiple Airlines Logo
2:00 pm - 6:22 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
21h 22m2 stops Tokyo Haneda Vancouver Intl
$984Multiple Airlines
Wed, Feb 3 - Sat, Feb 13
ANA Logo
3:45 pm - 7:30 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
22h 45m1 stop Tokyo Haneda
ANA Logo
2:00 pm - 1:20 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
16h 20m1 stop Tokyo Haneda
$1,086ANA
Wed, Jan 27 - Fri, Feb 5
ANA Logo
3:45 pm - 8:10 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
23h 25m1 stop Tokyo Haneda
ANA Logo
8:20 pm - 8:48 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 28m2 stops Tokyo Haneda San Francisco
$1,095ANA
Wed, Jan 27 - Fri, Feb 5
ANA Logo
4:30 pm - 8:05 amSEA  Seattle/Tacoma Intl-ITM Osaka Itami
23h 35m1 stop Tokyo Haneda
ANA Logo
12:50 pm - 2:25 pmITM  Osaka Itami-SEA Seattle/Tacoma Intl
17h 35m1 stop Tokyo Haneda
$1,099ANA
Wed, Aug 26 - Thu, Sep 3
Japan Airlines Logo
11:20 am - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
16h 30m2 stops Vancouver Intl Tokyo Narita
Japan Airlines Logo
2:40 pm - 9:50 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
12h 10m1 stop Tokyo Narita
$1,105Japan Airlines
Tue, Oct 20 - Fri, Nov 6
Japan Airlines Logo
8:51 am - 8:15 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 24m2 stops San Francisco Tokyo Haneda
Japan Airlines Logo
11:30 am - 9:50 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
15h 20m1 stop Tokyo Haneda
$1,117Japan Airlines
Tue, Nov 10 - Tue, Nov 24
Japan Airlines Logo
8:41 am - 7:50 pmSEA  Seattle/Tacoma Intl-ITM Osaka Itami
18h 09m2 stops Vancouver Intl Tokyo Narita
Japan Airlines Logo
2:40 pm - 6:06 amITM  Osaka Itami-SEA Seattle/Tacoma Intl
32h 26m2 stops Tokyo Narita Vancouver Intl
$1,125Japan Airlines
Wed, Nov 11 - Fri, Nov 20

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Japan Airlines flights from Seattle to Osaka Itami Airport

Our best Japan Airlines deals on Seattle to Osaka Itami Airport flight tickets
Japan Airlines
Oct 20
SEA11:20 amSeattle/Tacoma Intl
16h 30m
2 stops
ITM7:50 pmOsaka Itami
Nov 6
ITM2:40 pmOsaka Itami
12h 10m
1 stop
SEA9:50 amSeattle/Tacoma Intl
$1,105
Japan Airlines
Aug 17
SEA1:25 pmSeattle/Tacoma Intl
14h 25m
1 stop
ITM7:50 pmOsaka Itami
Aug 20
ITM2:30 pmOsaka Itami
12h 20m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$1,107
Japan Airlines
Nov 10
SEA8:51 amSeattle/Tacoma Intl
18h 24m
2 stops
ITM8:15 pmOsaka Itami
Nov 24
ITM11:30 amOsaka Itami
15h 20m
1 stop
SEA9:50 amSeattle/Tacoma Intl
$1,117

United Airlines flights from Seattle to Osaka Itami Airport

Our best United Airlines deals on Seattle to Osaka Itami Airport flight tickets
United Airlines
Jan 16
SEA3:30 pmSeattle/Tacoma Intl
33h 40m
2 stops
ITM6:10 pmOsaka Itami
Feb 19
ITM1:00 pmOsaka Itami
17h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,108
United Airlines
Jan 16
SEA7:32 pmSeattle/Tacoma Intl
29h 38m
2 stops
ITM6:10 pmOsaka Itami
Feb 18
ITM1:00 pmOsaka Itami
19h 54m
2 stops
SEA3:54 pmSeattle/Tacoma Intl
$1,118
United Airlines
Jan 14
SEA3:45 pmSeattle/Tacoma Intl
33h 25m
1 stop
ITM6:10 pmOsaka Itami
Feb 10
ITM1:00 pmOsaka Itami
17h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,161

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 August 8, 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

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

8:15 am-7:55 pm

2 stops18h 40m

Osaka Itami

Fri 2/5

1:55 pm-2:37 pm

2 stops17h 42m

$869

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Mon 1/11

8:15 am-7:55 pm

2 stops18h 40m

Osaka Itami

Mon 1/25

2:05 pm-2:37 pm

2 stops17h 32m

$947

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Mon 1/11

10:10 am-7:50 pm

2 stops16h 40m

Osaka Itami

Mon 2/8

2:05 pm-2:37 pm

2 stops17h 32m

$978

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 2/3

10:10 am-7:55 pm

2 stops16h 45m

Osaka Itami

Sat 2/13

2:00 pm-6:22 pm

2 stops21h 22m

$984

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

3:45 pm-7:30 am

1 stop22h 45m

Osaka Itami

Fri 2/5

2:00 pm-1:20 pm

1 stop16h 20m

$1,086

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 1/27

3:45 pm-8:10 am

1 stop23h 25m

Osaka Itami

Fri 2/5

8:20 pm-8:48 pm

2 stops17h 28m

$1,095

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 8/26

4:30 pm-8:05 am

1 stop23h 35m

Osaka Itami

Thu 9/3

12:50 pm-2:25 pm

1 stop17h 35m

$1,099
Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 10/20

11:20 am-7:50 pm

2 stops16h 30m

Osaka Itami

Fri 11/6

2:40 pm-9:50 am

1 stop12h 10m

$1,105

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Tue 11/10

8:51 am-8:15 pm

2 stops18h 24m

Osaka Itami

Tue 11/24

11:30 am-9:50 am

1 stop15h 20m

$1,117

SeattleOsaka

SEA Seattle/Tacoma Intl - ITM Osaka Itami

SEAITM

Seattle/Tacoma Intl

Wed 11/11

8:41 am-7:50 pm

2 stops18h 09m

Osaka Itami

Fri 11/20

2:40 pm-6:06 am

2 stops32h 26m

$1,125

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 January, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $687.

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

You could potentially save up to 35% 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 25m

Direct flights

None
The fastest flight from Seattle to Osaka Itami Airport takes 14h 25m
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

Frequently asked questions about flying from Seattle to Osaka Itami Airport

  • 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 $659Free CancellationRating
8.3
1,293 reviews
Search ANA flights
Japan AirlinesPriceFrom $788Free CancellationRating
8.3
1,893 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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