AirHint found the following cheapest return flights from Calgary (YYC) to Istanbul (IST) in October 2025 (see full year).

Return flights

01 Oct - 07 Oct	WestJet
29 Oct - 25 Nov	WestJet
07 Oct - 23 Oct	WestJet
14 Oct - 04 Nov	WestJet
21 Oct - 11 Nov	WestJet
26 Oct - 06 Nov	WestJet
22 Oct - 12 Nov	WestJet
07 Oct - 16 Oct	WestJet
26 Oct - 09 Nov	WestJet
07 Oct - 17 Oct	WestJet
14 Oct - 28 Oct	WestJet
15 Oct - 05 Nov	WestJet
15 Oct - 29 Oct	WestJet
06 Oct - 16 Oct	WestJet
21 Oct - 30 Oct	WestJet
07 Oct - 14 Oct	WestJet
03 Oct - 10 Oct	WestJet
06 Oct - 02 Nov	WestJet
28 Oct - 07 Nov	WestJet
22 Oct - 15 Nov	Qatar Airways

Also check the deals for one-way flights from Calgary to Istanbul in October.

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 Istanbul in October from $801

Return flights