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

Return flights

03 Dec - 10 Dec	Aeromexico
03 Dec - 15 Dec	United
09 Dec - 16 Dec	United
09 Dec - 13 Jan	United
06 Dec - 20 Jan	United
01 Dec - 13 Dec	United
01 Dec - 25 Dec	United
05 Dec - 28 Dec	United
06 Dec - 21 Dec	United
06 Dec - 27 Dec	United
22 Dec - 30 Dec	Turkish Airlines
15 Dec - 13 Jan	United
15 Dec - 15 Jan	Air France
20 Dec - 10 Jan	Aeromexico
11 Dec - 19 Dec	Emirates
17 Dec - 06 Jan	Turkish Airlines
05 Dec - 03 Jan	United
17 Dec - 10 Jan	Turkish Airlines
13 Dec - 03 Jan	Turkish Airlines
23 Dec - 05 Jan	Air Canada

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 1200€

Return flights