AirHint found the following cheapest return flights from Miami (MIA) to Monterrey (MTY) in August 2025 (see full year).

Return flights

12 Aug - 19 Aug	Aeromexico
14 Aug - 18 Aug	Viva	direct
14 Aug - 01 Sep	Viva	direct
14 Aug - 16 Aug	Viva	direct
14 Aug - 17 Aug	Viva	direct
08 Aug - 18 Aug	Viva	direct
08 Aug - 23 Aug	Viva	direct
08 Aug - 16 Aug	Viva	direct
07 Aug - 18 Aug	Viva	direct
08 Aug - 17 Aug	Viva	direct
07 Aug - 23 Aug	Viva	direct
11 Aug - 01 Sep	Viva	direct
29 Aug - 01 Sep	Viva	direct
29 Aug - 08 Sep	Viva	direct
29 Aug - 07 Sep	Viva	direct
12 Aug - 01 Sep	Viva
23 Aug - 01 Sep	Viva
24 Aug - 01 Sep	Viva	direct
23 Aug - 08 Sep	Viva
24 Aug - 08 Sep	Viva	direct

Also check the deals for one-way flights from Miami to Monterrey 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 Miami to Monterrey in August from $237

Return flights