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

Return flights

01 Dec - 05 Dec	Viva	direct
01 Dec - 08 Dec	Viva	direct
01 Dec - 14 Dec	Viva	direct
07 Dec - 08 Dec	Viva	direct
07 Dec - 14 Dec	Viva	direct
10 Dec - 14 Dec	Viva	direct
01 Dec - 07 Dec	Viva	direct
01 Dec - 10 Dec	Viva	direct
07 Dec - 10 Dec	Viva	direct
05 Dec - 08 Dec	Viva	direct
14 Dec - 04 Jan	Viva	direct
15 Dec - 04 Jan	Viva	direct
17 Dec - 04 Jan	Viva	direct
28 Dec - 04 Jan	Viva	direct
31 Dec - 04 Jan	Viva	direct
29 Dec - 04 Jan	Viva	direct
26 Dec - 04 Jan	Viva	direct
22 Dec - 04 Jan	Viva	direct
19 Dec - 04 Jan	Viva	direct

Also check the deals for one-way flights from Austin 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.

Book a cheap hotel in Monterrey

Cheap car rent in Monterrey

Cheapest return flights from Austin to Monterrey in December from 301€

Return flights