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

Return flights

26 Sep - 03 Oct	WestJet	direct
06 Sep - 13 Sep	WestJet
28 Sep - 01 Oct	WestJet
30 Sep - 07 Oct	WestJet	direct
26 Sep - 30 Sep	WestJet
26 Sep - 02 Oct	WestJet
14 Sep - 17 Sep	WestJet
11 Sep - 15 Sep	WestJet
14 Sep - 17 Sep	WestJet	direct
15 Sep - 15 Sep	WestJet	direct
06 Sep - 13 Sep	WestJet	direct
11 Sep - 15 Sep	WestJet	direct
25 Sep - 02 Oct	Air Canada

Also check the deals for one-way flights from Yellowknife to Calgary 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 Yellowknife to Calgary in September from $447

Return flights