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

Return flights

06 Dec - 10 Jan	Air Canada
06 Dec - 11 Dec	Air Canada
01 Dec - 11 Dec	Air Canada
29 Dec - 07 Jan	Asiana Airlines
25 Dec - 01 Jan	Air Premia
24 Dec - 12 Jan	Korean Air
24 Dec - 14 Jan	Korean Air
08 Dec - 15 Dec	Air Canada
15 Dec - 24 Dec	Aeromexico
22 Dec - 04 Jan	Aeromexico
24 Dec - 15 Jan	Korean Air
24 Dec - 13 Jan	Korean Air
30 Dec - 02 Jan	Korean Air
15 Dec - 29 Dec	Aeromexico
12 Dec - 14 Dec	Air Canada
24 Dec - 07 Jan	Air France
26 Dec - 31 Dec	Air France
12 Dec - 19 Dec	Asiana Airlines
23 Dec - 31 Dec	KLM
15 Dec - 26 Dec	Air Canada

Also check the deals for one-way flights from Seoul to Mexico City in December.

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 December from 806€

Return flights