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

Return flights

30 Sep - 07 Oct	WestJet
30 Sep - 05 Oct	WestJet
22 Sep - 25 Sep	WestJet
27 Sep - 04 Oct	WestJet
27 Sep - 05 Oct	WestJet
27 Sep - 08 Oct	Iberia
29 Sep - 07 Oct	Iberia
21 Sep - 24 Sep	WestJet
20 Sep - 05 Oct	WestJet
17 Sep - 24 Sep	WestJet
15 Sep - 22 Sep	WestJet
22 Sep - 24 Sep	WestJet
29 Sep - 08 Oct	Iberia
30 Sep - 25 Oct	WestJet
15 Sep - 21 Sep	WestJet
26 Sep - 28 Sep	WestJet
30 Sep - 19 Oct	WestJet
22 Sep - 26 Sep	WestJet
28 Sep - 30 Sep	WestJet
16 Sep - 27 Sep	WestJet

Also check the deals for one-way flights from Calgary to Barcelona 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 Calgary to Barcelona in September from 445€

Return flights