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

Return flights

23 Aug - 01 Sep	Volaris
20 Aug - 03 Sep	Volaris
18 Aug - 26 Aug	Aeromexico
21 Aug - 31 Aug	Volaris
12 Aug - 26 Aug	Aeromexico
11 Aug - 26 Aug	Aeromexico
31 Aug - 19 Sep	Aeromexico
13 Aug - 27 Aug	Viva
11 Aug - 18 Aug	Aeromexico
14 Aug - 27 Aug	Aeromexico
11 Aug - 25 Aug	Aeromexico
12 Aug - 25 Aug	Aeromexico
26 Aug - 07 Sep	Volaris
29 Aug - 05 Sep	Viva
07 Aug - 31 Aug	Aeromexico
30 Aug - 06 Sep	Volaris
23 Aug - 05 Sep	Volaris
19 Aug - 02 Sep	Aeromexico
20 Aug - 12 Sep	Volaris
26 Aug - 28 Sep	Volaris

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 859€

Return flights