Cheapest return flights from San Jose to Seoul in October from $841

Best time to book flights for San Jose (SJC) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from San Jose (SJC) to Seoul (ICN) in October 2025 (see full year).

Return flights

31 Oct - 07 Nov Korean Air
30 Oct - 08 Nov Korean Air
30 Oct - 07 Nov Korean Air
30 Oct - 09 Nov Korean Air
02 Oct - 18 Oct Korean Air
03 Oct - 18 Oct Korean Air
03 Oct - 14 Oct Korean Air
31 Oct - 09 Nov Korean Air
04 Oct - 11 Oct Korean Air
04 Oct - 18 Oct Korean Air

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

Skyscanner

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