AirHint found the following cheapest return flights from Montreal (YUL) to Vienna (VIE) in May 2026 (see full year).

Return flights

12 May - 19 May	WestJet
13 May - 09 Jun	FrenchBee
17 May - 24 May	WestJet
04 May - 20 May	Air Transat
06 May - 28 May	FrenchBee
06 May - 24 May	FrenchBee
20 May - 27 May	FrenchBee
12 May - 23 May	WestJet
18 May - 25 May	WestJet
13 May - 21 May	FrenchBee
11 May - 25 May	WestJet
12 May - 01 Jun	Air Transat
17 May - 07 Jun	FrenchBee
26 May - 02 Jun	Air Transat
05 May - 01 Jun	WestJet
27 May - 03 Jun	FrenchBee
30 May - 13 Jun	WestJet
25 May - 01 Jun	Air Transat
30 May - 06 Jun	FrenchBee
31 May - 07 Jun	WestJet

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

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 Montreal to Vienna in May from 509€

Return flights