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

Return flights

01 Dec - 08 Dec	American Airlines
02 Dec - 09 Dec	Flair Airlines
06 Dec - 15 Dec	Flair Airlines
29 Dec - 24 Jan	Aeromexico
29 Dec - 23 Jan	Aeromexico
02 Dec - 08 Dec	Flair Airlines
31 Dec - 22 Jan	Volaris
31 Dec - 20 Jan	Volaris
02 Dec - 14 Dec	Flair Airlines
31 Dec - 18 Jan	Volaris
31 Dec - 21 Jan	Volaris
03 Dec - 10 Dec	Volaris
31 Dec - 27 Jan	Viva
29 Dec - 15 Jan	Aeromexico
31 Dec - 24 Jan	Viva
05 Dec - 12 Dec	Volaris
26 Dec - 24 Jan	Viva
01 Dec - 15 Dec	Aeromexico
06 Dec - 21 Dec	Flair Airlines
07 Dec - 20 Dec	Volaris

Also check the deals for one-way flights from Mexico City to Seoul 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 Mexico City to Seoul in December from 903€

Return flights