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

Return flights

05 Dec - 12 Dec	Delta
05 Dec - 13 Dec	Delta
16 Dec - 23 Dec	Delta
01 Dec - 05 Dec	Delta
24 Dec - 30 Dec	Delta
05 Dec - 08 Dec	Southwest Airlines
22 Dec - 26 Dec	Southwest Airlines
29 Dec - 05 Jan	Southwest Airlines
31 Dec - 04 Jan	Southwest Airlines
20 Dec - 27 Dec	Southwest Airlines
27 Dec - 02 Jan	Southwest Airlines

Also check the deals for one-way flights from Dallas 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 Dallas to Cancun in December from 348€

Return flights