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

Return flights

15 Sep - 24 Sep	United
01 Sep - 25 Sep	United
01 Sep - 08 Sep	United
08 Sep - 22 Sep	United
01 Sep - 16 Sep	United
08 Sep - 23 Sep	United
03 Sep - 10 Sep	United
14 Sep - 21 Sep	United
01 Sep - 14 Sep	United
04 Sep - 19 Sep	United
02 Sep - 02 Oct	Turkish Airlines
02 Sep - 01 Oct	Turkish Airlines
30 Sep - 16 Oct	Turkish Airlines
29 Sep - 22 Oct	Turkish Airlines
29 Sep - 16 Oct	Air Canada

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 1219€

Return flights