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Cheap flights from Osaka to Seattle from $491

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Osaka to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:45 pm - 11:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 35m1 stop Honolulu
Multiple Airlines Logo
6:20 pm - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
31h 25m1 stop Honolulu
$913Multiple Airlines
Wed, Jan 27 - Wed, Feb 3
Multiple Airlines Logo
8:45 pm - 11:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
19h 35m1 stop Honolulu
Multiple Airlines Logo
7:00 am - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 45m1 stop Honolulu
$924Multiple Airlines
Thu, Feb 4 - Wed, Feb 24
Multiple Airlines Logo
8:45 pm - 8:20 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
16h 35m1 stop Honolulu
Multiple Airlines Logo
7:00 am - 6:45 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
18h 45m1 stop Honolulu
$924Multiple Airlines
Mon, Feb 8 - Wed, Feb 24
Air Canada Logo
7:25 pm - 2:37 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
12h 12m1 stop Vancouver Intl
Air Canada Logo
10:10 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
14h 30m1 stop Vancouver Intl
$931Air Canada
Mon, Feb 8 - Sun, Feb 21
Air Canada Logo
7:25 pm - 9:32 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
31h 07m1 stop Vancouver Intl
Air Canada Logo
10:10 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
14h 30m1 stop Vancouver Intl
$931Air Canada
Thu, Feb 4 - Sun, Feb 21
Air Canada Logo
7:25 pm - 2:37 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
12h 12m1 stop Vancouver Intl
Air Canada Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
33h 25m1 stop Vancouver Intl
$931Air Canada
Thu, Feb 4 - Sat, Feb 20
Air Canada Logo
7:25 pm - 2:37 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
12h 12m1 stop Vancouver Intl
Air Canada Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
33h 25m1 stop Vancouver Intl
$931Air Canada
Mon, Feb 8 - Sat, Feb 20
Multiple Airlines Logo
7:25 am - 9:16 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
42h 51m2 stops Tokyo Narita San Francisco
Multiple Airlines Logo
3:45 pm - 8:55 amSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
24h 10m1 stop Tokyo Haneda
$963Multiple Airlines
Wed, Jan 27 - Wed, Feb 3
ANA Logo
7:25 pm - 9:32 amKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
31h 07m1 stop Vancouver Intl
ANA Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
33h 25m1 stop Vancouver Intl
$979ANA
Mon, Feb 8 - Tue, Feb 23
Air Canada Logo
7:25 pm - 2:37 pmKIX  Osaka Kansai Intl-SEA Seattle/Tacoma Intl
12h 12m1 stop Vancouver Intl
Air Canada Logo
10:10 am - 5:40 pmSEA  Seattle/Tacoma Intl-KIX Osaka Kansai Intl
14h 30m1 stop Vancouver Intl
$983Air Canada
Mon, Feb 8 - Fri, Feb 19

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Delta flights from Osaka to Seattle

Our best Delta deals on Osaka to Seattle flight tickets
Delta
Dec 1
KIX2:15 amOsaka Kansai Intl
26h 41m
1 stop
SEA11:56 amSeattle/Tacoma Intl
Dec 9
SEA12:35 pmSeattle/Tacoma Intl
29h 10m
1 stop
KIX10:45 amOsaka Kansai Intl
$986
Delta
Feb 4
KIX2:15 amOsaka Kansai Intl
26h 35m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Feb 22
SEA12:50 pmSeattle/Tacoma Intl
28h 55m
1 stop
KIX10:45 amOsaka Kansai Intl
$987
Delta
Feb 4
KIX2:15 amOsaka Kansai Intl
26h 35m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Feb 20
SEA12:50 pmSeattle/Tacoma Intl
28h 55m
1 stop
KIX10:45 amOsaka Kansai Intl
$1,088

Air Canada flights from Osaka to Seattle

Our best Air Canada deals on Osaka to Seattle flight tickets
Air Canada
Feb 4
KIX7:25 pmOsaka Kansai Intl
12h 12m
1 stop
SEA2:37 pmSeattle/Tacoma Intl
Feb 20
SEA3:15 pmSeattle/Tacoma Intl
33h 25m
1 stop
KIX5:40 pmOsaka Kansai Intl
$931
Air Canada
Feb 8
KIX7:25 pmOsaka Kansai Intl
12h 12m
1 stop
SEA2:37 pmSeattle/Tacoma Intl
Feb 19
SEA10:10 amSeattle/Tacoma Intl
14h 30m
1 stop
KIX5:40 pmOsaka Kansai Intl
$983
Air Canada
Feb 6
KIX7:25 pmOsaka Kansai Intl
31h 07m
1 stop
SEA9:32 amSeattle/Tacoma Intl
Feb 24
SEA8:40 amSeattle/Tacoma Intl
16h 00m
1 stop
KIX5:40 pmOsaka Kansai Intl
$1,020

momondo Fare Finder

 
Use the filters below to find and compare flights from Osaka to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Wed 1/27

8:45 pm-11:20 pm

1 stop19h 35m

Seattle/Tacoma Intl

Wed 2/3

6:20 pm-6:45 pm

1 stop31h 25m

$913

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Thu 2/4

8:45 pm-11:20 pm

1 stop19h 35m

Seattle/Tacoma Intl

Wed 2/24

7:00 am-6:45 pm

1 stop18h 45m

$924

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Mon 2/8

8:45 pm-8:20 pm

1 stop16h 35m

Seattle/Tacoma Intl

Wed 2/24

7:00 am-6:45 pm

1 stop18h 45m

$924
Quickest round-trip

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Mon 2/8

7:25 pm-2:37 pm

1 stop12h 12m

Seattle/Tacoma Intl

Sun 2/21

10:10 am-5:40 pm

1 stop14h 30m

$931

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Thu 2/4

7:25 pm-9:32 am

1 stop31h 07m

Seattle/Tacoma Intl

Sun 2/21

10:10 am-5:40 pm

1 stop14h 30m

$931

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Thu 2/4

7:25 pm-2:37 pm

1 stop12h 12m

Seattle/Tacoma Intl

Sat 2/20

3:15 pm-5:40 pm

1 stop33h 25m

$931

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Mon 2/8

7:25 pm-2:37 pm

1 stop12h 12m

Seattle/Tacoma Intl

Sat 2/20

3:15 pm-5:40 pm

1 stop33h 25m

$931

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Wed 1/27

7:25 am-9:16 am

2 stops42h 51m

Seattle/Tacoma Intl

Wed 2/3

3:45 pm-8:55 am

1 stop24h 10m

$963

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Mon 2/8

7:25 pm-9:32 am

1 stop31h 07m

Seattle/Tacoma Intl

Tue 2/23

3:15 pm-5:40 pm

1 stop33h 25m

$979

OsakaSeattle

KIX Osaka Kansai Intl - SEA Seattle/Tacoma Intl

KIXSEA

Osaka Kansai Intl

Mon 2/8

7:25 pm-2:37 pm

1 stop12h 12m

Seattle/Tacoma Intl

Fri 2/19

10:10 am-5:40 pm

1 stop14h 30m

$983

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 Seattle from

How to get the cheapest flight ticket from Osaka to Seattle

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

How have Osaka to Seattle flight prices changed over time?

As of November 2026, prices for Osaka to Seattle flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Osaka to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Osaka to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Osaka to Seattle (OSA to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Osaka to Seattle

Best Price Found

$491

Fastest flight time

11h 35m

Direct flights

None
The best one-way flight to Seattle from Osaka in the past 72 hours is $491. The best round-trip flight deal from Osaka to Seattle found on momondo in the last 72 hours is $913.
The fastest flight from Osaka to Seattle takes 11h 35m
There are no direct flights from Osaka to Seattle. There are no popular flight routes from Osaka to Seattle.
Search flight deals

Frequently asked questions about flying from Osaka to Seattle

  • How far is Osaka to Seattle/Tacoma Intl by plane?

    The straight-line distance from Osaka to Seattle/Tacoma Intl is 4994.7 mi. By plane, this route typically takes 11h 35m.

  • When did momondo last update prices for flights from Osaka to Seattle/Tacoma Intl Airport?

    Prices for flights from Osaka to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Osaka to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Osaka to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Osaka to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl 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 Osaka to Seattle?

Best airlines flying from Osaka to Seattle

Compare and see reviews for airlines that fly from Osaka to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $794Free CancellationRating
7.1
11,875 reviews
Search Air Canada flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Olympia
Federal Way
Redmond
Lakewood
Lynnwood
Fife
Puyallup
Tukwila
Cle Elum
Marysville
Lacey
Kirkland
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Osaka to Seattle?

Finding the right flight to Seattle from Osaka is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Osaka to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Osaka which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Osaka to Seattle?

Once you have performed a search for Osaka to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Osaka to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Osaka to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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