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

Return flights

17 Oct - 20 Oct	Aeromexico
08 Oct - 12 Oct	Aeromexico
29 Oct - 04 Nov	Delta
29 Oct - 05 Nov	Delta
18 Oct - 25 Oct	Aeromexico
24 Oct - 27 Oct	Delta
27 Oct - 04 Nov	Delta
17 Oct - 19 Oct	Aeromexico
09 Oct - 13 Oct	Aeromexico
24 Oct - 26 Oct	Aeromexico
31 Oct - 02 Nov	Delta
10 Oct - 15 Oct	Aeromexico
30 Oct - 03 Nov	Delta
29 Oct - 03 Nov	Delta
27 Oct - 03 Nov	Delta

Also check the deals for one-way flights from Dallas to Monterrey in October.

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 October from $244

Return flights