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

Return flights

20 Oct - 24 Oct	Flair Airlines	direct
16 Oct - 23 Oct	Flair Airlines	direct
17 Oct - 19 Oct	WestJet	direct
11 Oct - 20 Oct	WestJet	direct
12 Oct - 20 Oct	Flair Airlines	direct
12 Oct - 18 Oct	Flair Airlines	direct
10 Oct - 13 Oct	Flair Airlines	direct
11 Oct - 13 Oct	WestJet	direct
01 Oct - 04 Oct	WestJet	direct
01 Oct - 05 Oct	WestJet	direct
28 Oct - 02 Nov	WestJet	direct
28 Oct - 26 Nov	WestJet	direct
27 Oct - 03 Nov	WestJet	direct
27 Oct - 25 Nov	WestJet
30 Oct - 06 Nov	WestJet

Also check the deals for one-way flights from Waterloo to Calgary 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 Waterloo to Calgary in October from 98€

Return flights