AirHint found the following cheapest return flights from Austin (AUS) to Calgary (YYC) in August 2025 (see full year).

Return flights

21 Aug - 24 Aug	WestJet	direct
18 Aug - 24 Aug	WestJet	direct
14 Aug - 18 Aug	WestJet	direct
21 Aug - 25 Aug	WestJet	direct
14 Aug - 17 Aug	WestJet	direct
20 Aug - 25 Aug	Frontier Airlines
20 Aug - 24 Aug	Frontier Airlines
13 Aug - 18 Aug	Frontier Airlines
21 Aug - 26 Aug	WestJet
14 Aug - 19 Aug	WestJet
28 Aug - 02 Sep	WestJet
27 Aug - 02 Sep	Delta

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

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 Austin to Calgary in August from $177

Return flights