AirHint found the following cheapest return flights from Los Angeles (LAX) to Seoul (ICN) in October 2025 (see full year).

Return flights

16 Oct - 23 Oct	Air Canada
14 Oct - 22 Oct	Cathay Pacific
14 Oct - 12 Nov	Cathay Pacific
14 Oct - 10 Nov	Cathay Pacific
21 Oct - 11 Nov	Cathay Pacific
30 Oct - 10 Nov	Cathay Pacific
13 Oct - 19 Nov	Cathay Pacific
15 Oct - 12 Nov	Cathay Pacific
29 Oct - 05 Nov	Alaska Airlines
17 Oct - 24 Oct	Air China
17 Oct - 25 Oct	Air China
22 Oct - 29 Oct	Alaska Airlines
24 Oct - 31 Oct	Air China
13 Oct - 31 Oct	Air China
16 Oct - 25 Oct	Air China
13 Oct - 06 Nov	Air China
24 Oct - 15 Nov	Air China
30 Oct - 03 Nov	Air China
14 Oct - 23 Oct	Air Canada
01 Oct - 28 Oct	Alaska Airlines

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Seoul in October from $689

Return flights