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

Return flights

14 Aug - 25 Aug	Aeromexico
21 Aug - 28 Aug	Viva
21 Aug - 09 Sep	Viva
22 Aug - 29 Aug	Volaris
19 Aug - 26 Aug	Volaris
20 Aug - 30 Aug	Viva
18 Aug - 26 Aug	Aeromexico
22 Aug - 07 Sep	Aeromexico
12 Aug - 26 Aug	Viva
16 Aug - 30 Aug	Aeromexico
01 Aug - 30 Aug	Viva
28 Aug - 04 Sep	Aeromexico
21 Aug - 31 Aug	Volaris
19 Aug - 02 Sep	Volaris
20 Aug - 04 Sep	Volaris
15 Aug - 24 Sep	Viva
29 Aug - 20 Sep	Aeromexico
27 Aug - 07 Sep	Aeromexico
21 Aug - 07 Sep	Volaris
01 Aug - 01 Sep	Viva

Also check the deals for one-way flights from Mexico City to Seoul in August.

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 August from $970

Return flights