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

Return flights

03 Dec - 12 Dec	United
10 Dec - 25 Dec	United
27 Dec - 10 Jan	United
28 Dec - 10 Jan	United
15 Dec - 24 Dec	United
01 Dec - 04 Jan	Turkish Airlines
23 Dec - 10 Jan	Turkish Airlines
23 Dec - 02 Jan	Turkish Airlines
17 Dec - 10 Jan	Turkish Airlines
22 Dec - 02 Jan	Air France
19 Dec - 04 Jan	Air Canada
19 Dec - 09 Jan	Air Canada
13 Dec - 23 Dec	United

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Mexico City to Seoul in December from $1448

Return flights