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

Return flights

07 Aug - 13 Aug	Avianca
12 Aug - 18 Aug	Avianca
07 Aug - 16 Aug	Avianca
13 Aug - 24 Aug	Avianca
09 Aug - 19 Aug	Avianca
09 Aug - 18 Aug	Avianca
17 Aug - 22 Aug	Avianca
21 Aug - 25 Aug	Avianca
19 Aug - 30 Aug	Avianca
08 Aug - 17 Aug	Avianca
28 Aug - 03 Sep	Arajet
28 Aug - 01 Sep	Avianca
06 Aug - 30 Sep	Avianca
22 Aug - 02 Sep	Avianca
28 Aug - 04 Sep	Avianca
31 Aug - 06 Sep	Arajet
15 Aug - 07 Sep	Avianca
21 Aug - 01 Sep	Avianca
22 Aug - 01 Sep	Avianca
06 Aug - 05 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 438€

Return flights