AirHint found the following cheapest return flights from Dublin (DUB) to Cancun (CUN) in August 2025 (see full year).

Return flights

29 Aug - 07 Sep	jetBlue
31 Aug - 21 Sep	jetBlue
28 Aug - 05 Sep	Icelandair
29 Aug - 05 Sep	Ryanair
30 Aug - 08 Sep	Ryanair
23 Aug - 03 Sep	Ryanair
24 Aug - 30 Aug	Ryanair
19 Aug - 04 Sep	Ryanair
23 Aug - 02 Sep	Ryanair
23 Aug - 30 Aug	Aer Lingus
18 Aug - 28 Aug	jetBlue
30 Aug - 06 Sep	Ryanair
25 Aug - 31 Aug	jetBlue
25 Aug - 03 Sep	Ryanair
24 Aug - 31 Aug	Ryanair
18 Aug - 20 Aug	WestJet
25 Aug - 30 Aug	Ryanair
13 Aug - 21 Aug	Ryanair
12 Aug - 16 Aug	Ryanair
14 Aug - 21 Aug	Ryanair

Also check the deals for one-way flights from Dublin to Cancun in August.

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 Dublin to Cancun in August from 536€

Return flights