AirHint found the following cheapest return flights from San Jose (SJC) to Seoul (ICN) in August 2026 (see full year).
Return flights
| 31 Aug - 07 Sep | Alaska Airlines | ||
| 24 Aug - 01 Sep | Alaska Airlines | ||
| 11 Aug - 22 Aug | Korean Air | ||
| 02 Aug - 12 Aug | Korean Air | ||
| 01 Aug - 14 Aug | Korean Air | ||
| 01 Aug - 15 Aug | Korean Air | ||
| 09 Aug - 16 Aug | Korean Air |
Also check the deals for one-way flights from San Jose to Seoul in August.
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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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