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

Return flights

24 Oct - 14 Nov	Air Canada
21 Oct - 18 Nov	Air Canada
21 Oct - 10 Nov	Air Canada
21 Oct - 14 Nov	Air Canada
21 Oct - 04 Nov	Air Canada
17 Oct - 26 Oct	Air Premia
22 Oct - 09 Nov	T'way Air
21 Oct - 24 Oct	Air Canada
19 Oct - 26 Oct	Air Premia
28 Oct - 29 Oct	Asiana Airlines
31 Oct - 02 Nov	Asiana Airlines
22 Oct - 23 Oct	Air Premia
18 Oct - 21 Oct	T'way Air
25 Oct - 26 Oct	T'way Air
27 Oct - 28 Oct	Korean Air
20 Oct - 21 Oct	Asiana Airlines
30 Oct - 31 Oct	T'way Air
27 Oct - 10 Nov	Air Canada
22 Oct - 06 Nov	Air Canada
27 Oct - 27 Nov	Air Canada

Also check the deals for one-way flights from Seoul to Mexico City 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 Seoul to Mexico City in October from 861€

Return flights