AirHint found the following cheapest return flights from Waterloo (YKF) to Calgary (YYC) in September 2026 (see full year).
Return flights
| 09 Sep - 13 Sep | WestJet | direct | |
| 10 Sep - 15 Sep | WestJet | direct | |
| 08 Sep - 17 Sep | WestJet | direct | |
| 08 Sep - 12 Sep | WestJet | direct | |
| 02 Sep - 16 Sep | WestJet | direct | |
| 01 Sep - 06 Sep | WestJet | direct |
Also check the deals for one-way flights from Waterloo to Calgary in September.
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