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

Return flights

09 Oct - 15 Oct	Porter Airlines (Canada) Ltd
07 Oct - 20 Oct	Aer Lingus
06 Oct - 13 Oct	WestJet
06 Oct - 15 Oct	Aer Lingus
04 Oct - 08 Oct	WestJet
07 Oct - 14 Oct	Aer Lingus
13 Oct - 26 Oct	Condor
03 Oct - 12 Oct	Porter Airlines (Canada) Ltd
28 Oct - 09 Nov	Scandinavian Airlines
21 Oct - 23 Oct	WestJet
22 Oct - 14 Nov	Condor
13 Oct - 03 Nov	WestJet
11 Oct - 04 Nov	WestJet
07 Oct - 20 Oct	Air Canada	direct
25 Oct - 01 Nov	Air Transat
11 Oct - 04 Nov	Air Canada	direct
22 Oct - 14 Nov	Air Canada	direct
25 Oct - 01 Nov	Air Canada	direct

Also check the deals for one-way flights from Toronto to Vienna in October.

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 October from 390€

Return flights