AirHint found the following cheapest return flights from Mexico City (MEX) to Santiago (SCL) in August 2025 (see full year).

Return flights

26 Aug - 03 Sep	Arajet
14 Aug - 27 Aug	Arajet
14 Aug - 25 Aug	Arajet
12 Aug - 20 Aug	Arajet
12 Aug - 19 Aug	Avianca
20 Aug - 28 Aug	Avianca
22 Aug - 27 Aug	Avianca
04 Aug - 14 Aug	Avianca
14 Aug - 21 Aug	Avianca
28 Aug - 01 Sep	Avianca
12 Aug - 01 Sep	Avianca
20 Aug - 24 Aug	Avianca
06 Aug - 19 Aug	Avianca
26 Aug - 02 Sep	Avianca
18 Aug - 02 Sep	Avianca
18 Aug - 01 Sep	Avianca
19 Aug - 05 Sep	Avianca
19 Aug - 04 Sep	Avianca
19 Aug - 09 Sep	Avianca
28 Aug - 04 Sep	Avianca

Also check the deals for one-way flights from Mexico City to Santiago in August.

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 Santiago in August from 387€

Return flights