Seoul (ICN) to San Francisco (SFO) cheap flight deal from $441 USD in economy class

UAUnited Airlines

Round Trip•Economy

ICN

Incheon International Airport

Seoul, South Korea

SFO

San Francisco International Airport

San Francisco, United States

$920 USD

-52%$441 USD

Verified Sep 21, 2025 at 5:35 PM

October 2025

Today

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29$630 30$908 1$1,266 2$1,495 3$1,442 4$686 5$782 6$686 7$627 8$561 9$627 10$561 11$561 12$548 13$441 14$561 15$441 16$561 17$441 18$452 19$441 20$441 21$561 22$441 23$561 24$441 25$765 26$870 27$441 28$561 29$441 30$561 31$786 1 2

Limited Availability

11% of dates checked are available within 10% of the lowest price

Wednesday, October 1st, 2025

10 round-trip options

Returning

Mon, Oct 6, 2025•5 Day Trip

$1,266 USD

Google Flights

Returning

Tue, Oct 7, 2025•6 Day Trip

$1,679 USD

Google Flights

Returning

Wed, Oct 8, 2025•7 Day Trip

$1,758 USD

Google Flights

Returning

Thu, Oct 9, 2025•8 Day Trip

$1,692 USD

Google Flights

Returning

Fri, Oct 10, 2025•9 Day Trip

$2,188 USD

Google Flights

Returning

Sat, Oct 11, 2025•10 Day Trip

$1,811 USD

Google Flights

Returning

Sun, Oct 12, 2025•11 Day Trip

$1,423 USD

Google Flights

Returning

Mon, Oct 13, 2025•12 Day Trip

$1,359 USD

Google Flights

Returning

Tue, Oct 14, 2025•13 Day Trip

$1,581 USD

Google Flights

Returning

Wed, Oct 15, 2025•14 Day Trip

$1,581 USD

Google Flights