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

Return flights

23 Sep - 30 Sep	Air Canada
16 Sep - 23 Sep	Air Canada
23 Sep - 10 Oct	Air Canada
23 Sep - 03 Oct	Air Canada
25 Sep - 05 Oct	Air Canada
12 Sep - 18 Sep	Air Canada
14 Sep - 17 Sep	Air Canada
21 Sep - 02 Oct	Air Canada
24 Sep - 03 Oct	Air Canada
11 Sep - 19 Sep	Air Canada
11 Sep - 18 Sep	Air Canada
02 Sep - 09 Sep	Air Canada
21 Sep - 28 Sep	Air Canada
19 Sep - 26 Sep	Air Canada
06 Sep - 12 Sep	Air Canada

Also check the deals for one-way flights from Seoul to Cancun 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 Seoul to Cancun in September from 680€

Return flights