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

Return flights

07 Oct - 15 Oct	Southwest Airlines
03 Oct - 10 Oct	Aeromexico
17 Oct - 29 Oct	Aeromexico
24 Oct - 28 Oct	Southwest Airlines
31 Oct - 04 Nov	Delta
02 Oct - 06 Oct	Delta
02 Oct - 05 Oct	Delta
02 Oct - 04 Oct	Delta
30 Oct - 02 Nov	Delta
30 Oct - 03 Nov	Delta
23 Oct - 27 Oct	Southwest Airlines
10 Oct - 17 Oct	Southwest Airlines
17 Oct - 29 Nov	Aeromexico

Also check the deals for one-way flights from Dallas to Cancun in October.

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 October from 236€

Return flights