Cheapest return flights from Montreal to Vienna in September from $745

Best time to book flights for Montreal (YUL) to Vienna (VIE) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to Vienna (VIE) in September 2025 (see full year).

Return flights

09 Sep - 16 Sep Air Transat
23 Sep - 30 Sep Air Transat
17 Sep - 24 Sep Air Transat
10 Sep - 17 Sep Air Transat
30 Sep - 07 Oct Air Transat
29 Sep - 06 Oct Air Transat
08 Sep - 15 Sep Air Transat
24 Sep - 01 Oct Air Transat
18 Sep - 25 Sep Air Transat
21 Sep - 28 Sep Air Transat
22 Sep - 29 Sep Air Transat
16 Sep - 23 Sep Air Transat
10 Sep - 24 Sep Air Transat
28 Sep - 05 Oct Air Transat
26 Sep - 03 Oct Air Transat
25 Sep - 02 Oct Condor
27 Sep - 04 Oct Condor
25 Sep - 02 Oct Air Canada direct
29 Sep - 06 Oct Air Canada direct
24 Sep - 01 Oct Air Canada direct

Also check the deals for one-way flights from Montreal to Vienna 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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