Cheapest return flights from Newark to Monterrey in December from $221

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

Return flights

03 Dec - 06 Dec Aeromexico
02 Dec - 06 Dec American Airlines
03 Dec - 10 Dec Aeromexico
30 Dec - 16 Jan Air Canada
15 Dec - 22 Dec Spirit Airlines
13 Dec - 19 Jan Spirit Airlines
19 Dec - 20 Jan Spirit Airlines
25 Dec - 11 Jan Spirit Airlines
28 Dec - 05 Jan Hawaiian Airlines
19 Dec - 19 Jan Spirit Airlines
14 Dec - 04 Jan Spirit Airlines
25 Dec - 02 Jan Spirit Airlines
20 Dec - 04 Jan Spirit Airlines
22 Dec - 02 Jan Spirit Airlines
19 Dec - 27 Dec Spirit Airlines

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

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