AirHint found the following cheapest return flights from Mexico City (MEX) to Seoul (ICN) in September 2026 (see full year).

Return flights

03 Sep - 21 Sep	Aeromexico
02 Sep - 27 Sep	United
01 Sep - 10 Sep	United
02 Sep - 29 Sep	United
07 Sep - 15 Sep	United
05 Sep - 16 Sep	United
10 Sep - 30 Sep	United
14 Sep - 29 Sep	United
01 Sep - 16 Sep	United
15 Sep - 30 Sep	United
11 Sep - 04 Oct	United
23 Sep - 07 Oct	United
29 Sep - 12 Oct	United
30 Sep - 12 Oct	Aeromexico
20 Sep - 24 Oct	Turkish Airlines

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

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 September from 1172€

Return flights