Cheapest return AUS–YYC flights, September

AirHint found the following cheapest return flights from Austin (AUS) to Calgary (YYC) in September 2026 (see full year).

Return flights

06 Sep - 10 Sep WestJet direct
03 Sep - 06 Sep WestJet direct
12 Sep - 15 Sep United
03 Sep - 10 Sep WestJet direct
01 Sep - 10 Sep Frontier Airlines
05 Sep - 10 Sep Frontier Airlines
24 Sep - 30 Sep Delta
18 Sep - 24 Sep Delta
19 Sep - 22 Sep Delta
02 Sep - 10 Sep Frontier Airlines

Also check the deals for one-way flights from Austin to Calgary in September.

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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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