AirHint found the following cheapest return flights from San Jose (SJC) to Seoul (ICN) in October 2026 (see full year).
Return flights
| 21 Oct - 26 Oct | Alaska Airlines | ||
| 04 Oct - 11 Oct | Alaska Airlines | ||
| 07 Oct - 14 Oct | Korean Air | ||
| 01 Oct - 17 Oct | Korean Air | ||
| 03 Oct - 11 Oct | Korean Air |
Also check the deals for one-way flights from San Jose to Seoul in October.
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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.
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