AirHint found the following cheapest return flights from Seoul (ICN) to Cancun (CUN) in October 2025 (see full year).

Return flights

22 Oct - 29 Oct	Air Canada
14 Oct - 21 Oct	Air Canada
14 Oct - 28 Oct	Air Canada
21 Oct - 28 Oct	Air Canada
23 Oct - 30 Oct	Air Canada
16 Oct - 30 Oct	Air Canada
16 Oct - 23 Oct	Air Canada
07 Oct - 28 Oct	Air Canada
29 Oct - 31 Oct	Air Canada
29 Oct - 01 Nov	Air Canada
27 Oct - 07 Nov	Air Canada
19 Oct - 27 Oct	Air Canada
26 Oct - 02 Nov	Air Canada
26 Oct - 07 Nov	Air Canada
26 Oct - 08 Nov	Air Canada
18 Oct - 01 Nov	Air Canada
24 Oct - 01 Nov	United
25 Oct - 01 Nov	United

Also check the deals for one-way flights from Seoul to Cancun in October.

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 October from $795

Return flights