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

Return flights

26 May - 08 Jun	Air Transat
03 May - 18 May	TAP
05 May - 12 May	Air Canada
06 May - 13 May	Air Canada
12 May - 19 May	Air Transat
04 May - 11 May	Air Transat
12 May - 26 May	Air Transat
02 May - 21 May	Air Canada
25 May - 01 Jun	Air Transat
04 May - 19 May	SWISS
30 May - 06 Jun	Air Transat
19 May - 28 May	Air Canada	direct
19 May - 26 May	Air Canada	direct
27 May - 03 Jun	Air Canada
26 May - 02 Jun	Air Canada
27 May - 07 Jun	Air Canada
28 May - 04 Jun	Air Canada
29 May - 05 Jun	Air Transat
31 May - 07 Jun	Air Canada
17 May - 07 Jun	Air Transat

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 $692

Return flights