AirHint found the following cheapest return flights from Santa Ana (SNA) to Seoul (ICN) in October 2025 (see full year).

Return flights

06 Oct - 18 Oct	Korean Air
06 Oct - 20 Oct	Korean Air
20 Oct - 30 Oct	Korean Air
08 Oct - 22 Oct	Alaska Airlines
06 Oct - 17 Nov	Korean Air
03 Oct - 11 Oct	Korean Air
08 Oct - 19 Oct	Alaska Airlines
07 Oct - 21 Oct	Alaska Airlines
03 Oct - 26 Oct	Korean Air
24 Oct - 26 Oct	Korean Air
16 Oct - 27 Oct	Korean Air
22 Oct - 05 Nov	Korean Air
30 Oct - 10 Nov	Korean Air
23 Oct - 08 Nov	Korean Air
29 Oct - 07 Nov	Korean Air
22 Oct - 08 Nov	Korean Air
02 Oct - 02 Nov	Alaska Airlines
26 Oct - 02 Nov	Qatar Airways
19 Oct - 30 Nov	Korean Air

Also check the deals for one-way flights from Santa Ana to Seoul in October.

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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Cheapest return flights from Santa Ana to Seoul in October from $1238

Return flights