AirHint found the following cheapest one-way flights from Montreal (YUL) to Vienna (VIE) in August 2025 (see full year).

One-Way flights

21 Aug	FrenchBee
25 Aug	Porter Airlines (Canada) Ltd
30 Aug	Air Transat
23 Aug	Porter Airlines (Canada) Ltd
20 Aug	FrenchBee
18 Aug	Porter Airlines (Canada) Ltd
16 Aug	Porter Airlines (Canada) Ltd
17 Aug	Porter Airlines (Canada) Ltd
25 Aug	Air Canada	direct
18 Aug	Austrian Airlines	direct

Also check the deals for return flights from Montreal 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 one-way flights from Montreal to Vienna in August from 365€

One-Way flights