Cheapest return flights from San Jose to Seoul in December from $1210

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 December 2025 (see full year).

Return flights

25 Dec - 09 Jan Korean Air
22 Dec - 07 Jan Korean Air
03 Dec - 29 Dec Alaska Airlines
19 Dec - 30 Dec Korean Air
22 Dec - 01 Jan Korean Air
19 Dec - 31 Dec Korean Air
19 Dec - 01 Jan Hawaiian Airlines
23 Dec - 03 Jan Korean Air
19 Dec - 03 Jan Hawaiian Airlines

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

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.

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