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

Return flights

03 Dec - 08 Dec	Air Canada
01 Dec - 08 Dec	Air Canada
01 Dec - 04 Dec	Air Canada
04 Dec - 06 Dec	Air Canada
04 Dec - 09 Dec	Air Canada
01 Dec - 09 Dec	Air Canada
21 Dec - 14 Jan	Air Premia
04 Dec - 11 Dec	Asiana Airlines
27 Dec - 15 Jan	Air Canada
27 Dec - 31 Dec	Air Canada
15 Dec - 31 Dec	Aeromexico
27 Dec - 02 Jan	Air Canada
27 Dec - 03 Jan	Air Canada
27 Dec - 04 Jan	Air Canada
01 Dec - 22 Dec	Air Premia
26 Dec - 14 Jan	Air Canada
24 Dec - 06 Jan	Air Canada
24 Dec - 01 Jan	Air Canada
26 Dec - 02 Jan	Air Canada
26 Dec - 03 Jan	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 815€

Return flights