Seattle / Tacoma (SEA) to Seoul (ICN) cheap flight deal from $4588 USD in business class

CIChina Airlines

Round Trip•Business Class

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

ICN

Incheon International Airport

Seoul, South Korea

$5,653 USD

-19%$4,588 USD

Verified Sep 20, 2025 at 12:37 AM

September 2025

Today

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Tue

Wed

Thu

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Sun

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21$7,731 22$6,160 23$6,160 24$4,588 25 26$4,588 27 28$4,588 29$4,588 30$6,544 1$4,588 2 3$4,588 4 5$6,544

Fair Availability

38% of dates checked are available within 10% of the lowest price

Tuesday, September 23rd, 2025

7 round-trip options

Returning

Sun, Sep 28, 2025•5 Day Trip

$6,735 USD

Google Flights

Returning

Mon, Sep 29, 2025•6 Day Trip

$6,160 USD

Google Flights

Returning

Wed, Oct 1, 2025•8 Day Trip

$14,651 USD

Google Flights

Returning

Sat, Oct 4, 2025•11 Day Trip

$6,735 USD

Google Flights

Returning

Sun, Oct 5, 2025•12 Day Trip

$6,160 USD

Google Flights

Returning

Mon, Oct 6, 2025•13 Day Trip

$6,160 USD

Google Flights

Returning

Tue, Oct 7, 2025•14 Day Trip

$6,160 USD

Google Flights