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

Return flights

16 Oct - 21 Oct	EVA Air
15 Oct - 19 Nov	EVA Air
31 Oct - 10 Nov	China Airlines
03 Oct - 08 Oct	EVA Air
15 Oct - 22 Oct	EVA Air
01 Oct - 16 Oct	EVA Air
30 Oct - 08 Nov	China Airlines
02 Oct - 09 Oct	China Airlines
23 Oct - 08 Nov	China Airlines
01 Oct - 18 Oct	EVA Air
23 Oct - 16 Nov	China Airlines
23 Oct - 30 Oct	China Airlines
23 Oct - 20 Nov	China Airlines
29 Oct - 03 Nov	China Airlines
03 Oct - 18 Oct	EVA Air
11 Oct - 18 Oct	EVA Air
02 Oct - 17 Oct	China Airlines
31 Oct - 07 Nov	China Airlines
16 Oct - 03 Nov	China Airlines
27 Oct - 15 Nov	China Airlines

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 $1081

Return flights