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

Return flights

10 Dec - 17 Dec	Delta
13 Dec - 20 Dec	Delta
11 Dec - 13 Dec	Aeromexico
08 Dec - 12 Dec	Delta
11 Dec - 18 Dec	Delta
13 Dec - 15 Dec	Delta
25 Dec - 01 Jan	Delta
17 Dec - 20 Dec	Delta
08 Dec - 08 Dec	Aeromexico
30 Dec - 05 Jan	Delta
23 Dec - 30 Dec	Delta
27 Dec - 06 Jan	Delta
17 Dec - 27 Dec	Delta
22 Dec - 04 Jan	Delta
21 Dec - 03 Jan	Delta

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

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 December from 318€

Return flights