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

Return flights

04 Sep - 10 Sep	Arajet
11 Sep - 20 Sep	Arajet
27 Sep - 18 Oct	Avianca
28 Sep - 19 Oct	Avianca
09 Sep - 16 Sep	Arajet
11 Sep - 18 Sep	Arajet
08 Sep - 18 Sep	Avianca
11 Sep - 11 Sep	Copa
13 Sep - 20 Sep	Copa
16 Sep - 27 Sep	Avianca
27 Sep - 27 Sep	Avianca
08 Sep - 11 Sep	Avianca
28 Sep - 11 Oct	Avianca
28 Sep - 15 Oct	Avianca
28 Sep - 18 Oct	Avianca
27 Sep - 11 Oct	Avianca
27 Sep - 15 Oct	Avianca

Also check the deals for one-way flights from Santiago 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 Santiago to Cancun in September from $537

Return flights