Cheapest return flights from San Jose to Seoul in December from $1642

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

Return flights

07 Dec - 28 Dec Korean Air
07 Dec - 25 Dec Korean Air
16 Dec - 31 Dec Korean Air
07 Dec - 26 Dec Korean Air
07 Dec - 27 Dec Korean Air
13 Dec - 26 Dec Alaska Airlines
26 Dec - 07 Jan Korean Air
22 Dec - 01 Jan Korean Air
21 Dec - 31 Dec Korean Air
14 Dec - 26 Dec Korean Air
21 Dec - 26 Dec Korean Air
12 Dec - 03 Jan Korean Air

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

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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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