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

Return flights

09 Dec - 16 Dec	United	direct
13 Dec - 16 Dec	American Airlines
09 Dec - 12 Dec	United	direct
02 Dec - 12 Dec	United
11 Dec - 13 Dec	United	direct
11 Dec - 12 Dec	United	direct
01 Dec - 07 Dec	jetBlue
15 Dec - 19 Dec	Lufthansa
12 Dec - 15 Dec	jetBlue
30 Dec - 07 Jan	American Airlines
16 Dec - 13 Jan	United
12 Dec - 15 Dec	jetBlue	direct
30 Dec - 06 Jan	Aeromexico
28 Dec - 15 Jan	jetBlue	direct
29 Dec - 07 Jan	American Airlines
28 Dec - 16 Jan	United	direct
30 Dec - 05 Jan	Aeromexico
31 Dec - 05 Jan	jetBlue
30 Dec - 07 Jan	United	direct
30 Dec - 05 Jan	United	direct

Also check the deals for one-way flights from Newark to Cancun 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 Cancun in December from $300

Return flights