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

Return flights

20 Sep - 27 Sep	Arajet
23 Sep - 27 Sep	Viva
06 Sep - 27 Sep	Viva
29 Sep - 19 Oct	Viva
06 Sep - 21 Sep	Viva
29 Sep - 18 Oct	Viva
27 Sep - 18 Oct	Viva
01 Sep - 21 Sep	Viva
01 Sep - 04 Sep	Viva
06 Sep - 16 Sep	Viva
06 Sep - 20 Sep	Viva
21 Sep - 27 Sep	Viva
01 Sep - 16 Sep	Viva

Also check the deals for one-way flights from Cancun to Santiago 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 Cancun to Santiago in September from 546€

Return flights