$633 Cheap United flights San Francisco (SFO) to Seoul (ICN)

View $633 flight on Wed, Mar 4, 2026Opens in a new window

$633 Cheap United flights San Francisco (SFO) to Seoul (ICN)

Prices were available within the past 7 days and start at $633 for one-way flights and $1,061 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Mar 21 - Fri, Apr 3
SFO
San Francisco
ICN
Seoul
$1,061 Roundtrip, found 6 hours ago
$1,061
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Mar 21 from San Francisco to Seoul, returning Fri, Apr 3, priced at $1,061 found 6 hours ago

Find the cheapest month to fly from San Francisco (SFO) to Seoul (ICN)

May is typically the cheapest month to fly

From $626 - $1,109 per traveler.
Flights from San Francisco (SFO) to Seoul (ICN)
Origin airport
San Francisco Intl.
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Air China, Air Premia, Alaska Airlines, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, Delta, EVA Airways, Hawaiian Airlines, Korean Air, Philippine Airlines, United, Vietnam Airlines
Popular airline
Air Canada
Distance
9032 km
Average flight time
29 hours 57 mins