AirHint found the following cheapest return flights from Toronto (YYZ) to Vienna (VIE) in August 2025 (see full year).

Return flights

31 Aug - 20 Sep	WestJet
26 Aug - 20 Sep	Porter Airlines (Canada) Ltd
24 Aug - 13 Sep	Air Transat
27 Aug - 09 Sep	Porter Airlines (Canada) Ltd
24 Aug - 30 Sep	Air Transat
28 Aug - 20 Sep	Flair Airlines
27 Aug - 14 Sep	Porter Airlines (Canada) Ltd
26 Aug - 02 Sep	Porter Airlines (Canada) Ltd
30 Aug - 22 Sep	Air Transat
25 Aug - 09 Sep	Air Transat
26 Aug - 30 Aug	Air Canada	direct

Also check the deals for one-way flights from Toronto to Vienna 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 Toronto to Vienna in August from $549

Return flights