AirHint found the following cheapest return flights from Barcelona (BCN) to Cancun (CUN) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep	Iberia
25 Sep - 02 Oct	Iberia
23 Sep - 26 Sep	Iberia
19 Sep - 28 Sep	Iberia
16 Sep - 20 Sep	Iberia
18 Sep - 25 Sep	Iberia
19 Sep - 26 Sep	Iberia
30 Sep - 07 Oct	Iberia
16 Sep - 26 Sep	Iberia
24 Sep - 28 Sep	Iberia
26 Sep - 06 Oct	Iberia
16 Sep - 22 Sep	Vueling Airlines
16 Sep - 30 Sep	Vueling Airlines
24 Sep - 08 Oct	Iberia
05 Sep - 05 Oct	Air Europa
27 Sep - 04 Oct	Air Canada
20 Sep - 02 Oct	Iberia
20 Sep - 04 Oct	Iberia
20 Sep - 05 Oct	Iberia
27 Sep - 05 Oct	Iberia

Also check the deals for one-way flights from Barcelona to Cancun in September.

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 Barcelona to Cancun in September from $556

Return flights