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

Return flights

18 Sep - 29 Sep	Air Transat
08 Sep - 13 Sep	Iberia
05 Sep - 14 Sep	Air Canada
05 Sep - 10 Sep	Air Europa
16 Sep - 30 Sep	Air Europa
16 Sep - 26 Sep	Air Canada
01 Sep - 08 Sep	Air Canada
08 Sep - 11 Sep	Air Europa
05 Sep - 25 Sep	Air Canada
05 Sep - 07 Sep	Air Canada
15 Sep - 01 Oct	Air Canada
27 Sep - 06 Oct	Air Canada
30 Sep - 23 Oct	Air Canada
27 Sep - 11 Oct	Air Canada
27 Sep - 05 Oct	Air Canada
26 Sep - 31 Oct	United
28 Sep - 06 Oct	Vueling Airlines
29 Sep - 06 Oct	Vueling Airlines
29 Sep - 08 Oct	Vueling Airlines
28 Sep - 10 Oct	Air Europa

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 567€

Return flights