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

Return flights

13 Sep - 22 Sep	WestJet
09 Sep - 22 Sep	WestJet
09 Sep - 16 Sep	WestJet
01 Sep - 13 Sep	WestJet
01 Sep - 10 Sep	WestJet
09 Sep - 14 Sep	WestJet
09 Sep - 21 Sep	WestJet
15 Sep - 06 Oct	WestJet
22 Sep - 23 Oct	WestJet
13 Sep - 01 Oct	WestJet
02 Sep - 09 Sep	WestJet
02 Sep - 12 Sep	WestJet
06 Sep - 13 Sep	WestJet
15 Sep - 05 Oct	WestJet
25 Sep - 02 Oct	WestJet
09 Sep - 18 Oct	WestJet
16 Sep - 05 Oct	WestJet
17 Sep - 14 Oct	Air Transat
09 Sep - 05 Oct	WestJet
13 Sep - 05 Oct	Air Canada

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 $517

Return flights