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

Return flights

23 Sep - 06 Oct	United
22 Sep - 06 Oct	United
23 Sep - 07 Oct	United
02 Sep - 15 Sep	United
01 Sep - 08 Sep	United
02 Sep - 08 Sep	United
01 Sep - 16 Sep	United
01 Sep - 11 Sep	United
07 Sep - 12 Sep	United
06 Sep - 12 Sep	United
18 Sep - 14 Oct	Aeromexico
14 Sep - 25 Sep	Flair Airlines
07 Sep - 23 Sep	Volaris
08 Sep - 23 Sep	Flair Airlines
26 Sep - 10 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 1194€

Return flights