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

Return flights

06 Dec - 12 Dec	Spirit Airlines
04 Dec - 08 Dec	Spirit Airlines
05 Dec - 14 Dec	Arajet
01 Dec - 07 Dec	Arajet
01 Dec - 08 Dec	Arajet
10 Dec - 14 Dec	Arajet
11 Dec - 14 Dec	Spirit Airlines
13 Dec - 21 Jan	Spirit Airlines
01 Dec - 04 Dec	Arajet
01 Dec - 08 Dec	Volaris	direct
12 Dec - 17 Dec	Aeromexico
31 Dec - 13 Jan	Delta
12 Dec - 20 Jan	Volaris	direct
12 Dec - 20 Jan	Aeromexico
28 Dec - 28 Jan	Volaris	direct
21 Dec - 22 Jan	Aeromexico
16 Dec - 12 Jan	Spirit Airlines
17 Dec - 19 Jan	Spirit Airlines
14 Dec - 08 Jan	Spirit Airlines
16 Dec - 12 Jan	Volaris	direct

Also check the deals for one-way flights from Newark to Mexico City 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 Newark to Mexico City in December from $344

Return flights