Cheapest return flights from Montreal to Sydney in August from $905

AirHint found the following cheapest return flights from Montreal (YUL) to Sydney (SYD) in August 2025 (see full year).

Return flights

26 Aug - 10 Sep WestJet
28 Aug - 04 Sep WestJet
26 Aug - 02 Sep WestJet
29 Aug - 05 Sep Porter Airlines (Canada) Ltd
24 Aug - 08 Sep Air Canada
30 Aug - 06 Sep Porter Airlines (Canada) Ltd
27 Aug - 03 Sep Porter Airlines (Canada) Ltd
31 Aug - 07 Sep Porter Airlines (Canada) Ltd
30 Aug - 15 Sep Porter Airlines (Canada) Ltd
23 Aug - 31 Aug Air Canada
23 Aug - 30 Aug Air Canada
24 Aug - 05 Sep Air Canada
17 Aug - 24 Aug Air Canada
19 Aug - 26 Aug Air Canada
12 Aug - 19 Aug Air Canada
24 Aug - 31 Aug Air Canada
20 Aug - 27 Aug Porter Airlines (Canada) Ltd
22 Aug - 29 Aug Porter Airlines (Canada) Ltd
25 Aug - 29 Aug Porter Airlines (Canada) Ltd
21 Aug - 28 Aug WestJet

Also check the deals for one-way flights from Montreal to Sydney in August.

Skyscanner

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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