AirHint found the following cheapest return flights from Barcelona (BCN) to Cancun (CUN) in September 2026 (see full year).

Return flights

23 Sep - 30 Sep	Air Transat
23 Sep - 05 Oct	Air Transat
10 Sep - 22 Sep	Air Transat
18 Sep - 29 Sep	Air Transat
09 Sep - 18 Sep	Air Transat
15 Sep - 22 Sep	Air Transat
28 Sep - 07 Oct	Air Canada
02 Sep - 14 Sep	Air Transat
07 Sep - 30 Sep	Air Transat
07 Sep - 29 Sep	Air Transat
14 Sep - 21 Sep	Air Transat
12 Sep - 26 Sep	SWISS
29 Sep - 02 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 531€

Return flights