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

Return flights

10 Dec - 23 Jan	Volaris
08 Dec - 15 Jan	Volaris
04 Dec - 27 Dec	Viva
10 Dec - 22 Jan	Viva
13 Dec - 23 Jan	Volaris
07 Dec - 26 Dec	Volaris
13 Dec - 22 Jan	Volaris
11 Dec - 22 Jan	Viva
13 Dec - 20 Jan	Volaris
15 Dec - 23 Jan	Volaris
14 Dec - 23 Jan	Viva
15 Dec - 22 Jan	Volaris
14 Dec - 28 Dec	Viva
02 Dec - 31 Dec	Viva
01 Dec - 31 Dec	Volaris
03 Dec - 31 Dec	Volaris
15 Dec - 22 Dec	Viva
10 Dec - 31 Dec	Volaris
11 Dec - 28 Dec	Air Canada
17 Dec - 24 Dec	Viva

Also check the deals for one-way flights from Monterrey 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 Monterrey to Seoul in December from 1013€

Return flights