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

Return flights

01 Oct - 16 Oct	Hawaiian Airlines
04 Oct - 11 Oct	Aeromexico
02 Oct - 17 Oct	Hawaiian Airlines
01 Oct - 10 Oct	Air Canada
02 Oct - 15 Oct	Aeromexico
17 Oct - 24 Oct	Air Canada
30 Oct - 06 Nov	Air Canada
24 Oct - 08 Nov	Air Canada
02 Oct - 18 Oct	Aeromexico
04 Oct - 23 Oct	Aeromexico
02 Oct - 24 Oct	Aeromexico
12 Oct - 26 Oct	Air Canada
11 Oct - 08 Nov	Aeromexico
27 Oct - 13 Nov	Aeromexico
29 Oct - 12 Nov	Delta
31 Oct - 17 Nov	Delta
25 Oct - 08 Nov	Delta
18 Oct - 02 Nov	Delta

Also check the deals for one-way flights from Monterrey 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 Monterrey to Seoul in October from 839€

Return flights