Cheapest return flights from Oakland to Seoul in December from $840

AirHint found the following cheapest return flights from Oakland (OAK) to Seoul (ICN) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec Korean Air
08 Dec - 17 Dec Korean Air
05 Dec - 10 Dec Korean Air
05 Dec - 17 Dec Korean Air
08 Dec - 18 Jan Korean Air
08 Dec - 16 Dec Korean Air
09 Dec - 17 Dec Korean Air
05 Dec - 14 Dec Korean Air
08 Dec - 15 Dec Korean Air
02 Dec - 25 Dec Korean Air
05 Dec - 13 Dec Korean Air
09 Dec - 11 Jan Korean Air
24 Dec - 14 Jan Korean Air
26 Dec - 23 Jan Korean Air
31 Dec - 10 Jan Korean Air
25 Dec - 01 Jan Korean Air
29 Dec - 20 Jan Korean Air
29 Dec - 15 Jan Korean Air
11 Dec - 18 Jan Korean Air
31 Dec - 09 Jan Korean Air

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

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