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

Return flights

30 Aug - 02 Sep	Delta
28 Aug - 31 Aug	Delta
28 Aug - 01 Sep	Delta
27 Aug - 31 Aug	Delta
24 Aug - 27 Aug	Delta
30 Aug - 01 Sep	Delta
28 Aug - 29 Aug	Delta
31 Aug - 04 Sep	Delta
28 Aug - 02 Sep	Delta
28 Aug - 03 Sep	Delta
19 Aug - 26 Aug	Delta
27 Aug - 01 Sep	Delta
29 Aug - 02 Sep	Delta
29 Aug - 03 Sep	Delta
29 Aug - 31 Aug	Delta

Also check the deals for one-way flights from Dallas 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 Dallas to Monterrey in August from 234€

Return flights