Seattle / Tacoma (SEA) to Osaka (KIX) cheap flight deal from $603 USD in economy class

UAUnited Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

KIX

Kansai International Airport

Osaka, Japan

$1,011 USD

-40%$603 USD

Verified Sep 21, 2025 at 5:36 PM

October 2025

Today

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29$680 30$680 1$839 2$869 3$1,210 4$924 5$872 6$872 7$872 8$940 9$920 10$1,058 11$991 12$1,060 13$811 14$797 15$872 16$875 17$1,596 18$951 19$953 20$617 21$610 22$843 23$892 24$875 25$840 26$837 27$617 28$610 29$790 30$663 31$748 1 2

Limited Availability

14% of dates checked are available within 10% of the lowest price

Monday, October 6th, 2025

10 round-trip options

Returning

Sat, Oct 11, 2025•5 Day Trip

$1,096 USD

Google Flights

Returning

Sun, Oct 12, 2025•6 Day Trip

$972 USD

Google Flights

Returning

Mon, Oct 13, 2025•7 Day Trip

$1,002 USD

Google Flights

Returning

Tue, Oct 14, 2025•8 Day Trip

$906 USD

Google Flights

Returning

Wed, Oct 15, 2025•9 Day Trip

$1,059 USD

Google Flights

Returning

Thu, Oct 16, 2025•10 Day Trip

$872 USD

Google Flights

Returning

Fri, Oct 17, 2025•11 Day Trip

$872 USD

Google Flights

Returning

Sat, Oct 18, 2025•12 Day Trip

$1,323 USD

Google Flights

Returning

Sun, Oct 19, 2025•13 Day Trip

$1,089 USD

Google Flights

Returning

Mon, Oct 20, 2025•14 Day Trip

$922 USD

Google Flights