Cheapest return flights from San Jose to Seoul in October from $708

AirHint found the following cheapest return flights from San Jose (SJC) to Seoul (ICN) in October 2026 (see full year).

Return flights

31 Oct - 12 Nov Alaska Airlines
18 Oct - 02 Nov Alaska Airlines
18 Oct - 01 Nov Alaska Airlines
10 Oct - 22 Oct Alaska Airlines
09 Oct - 19 Oct Alaska Airlines
17 Oct - 25 Oct Alaska Airlines
14 Oct - 28 Oct Korean Air
06 Oct - 31 Oct Korean Air
13 Oct - 23 Oct Korean Air
09 Oct - 18 Oct Alaska Airlines
16 Oct - 23 Oct Korean Air
03 Oct - 10 Oct Korean Air

Also check the deals for one-way flights from San Jose to Seoul in October.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.