Cheapest return flights from Montreal to Sydney in October from $1215

Best time to book flights for Montreal (YUL) to Sydney (SYD) flights at AirHint

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

Return flights

22 Oct - 29 Oct Porter Airlines (Canada) Ltd
17 Oct - 24 Oct Porter Airlines (Canada) Ltd
29 Oct - 05 Nov Porter Airlines (Canada) Ltd
20 Oct - 27 Oct Qatar Airways
21 Oct - 28 Oct Qatar Airways
19 Oct - 26 Oct Air New Zealand
23 Oct - 30 Oct Porter Airlines (Canada) Ltd
19 Oct - 11 Nov Air New Zealand
28 Oct - 04 Nov Porter Airlines (Canada) Ltd
15 Oct - 22 Oct Porter Airlines (Canada) Ltd
11 Oct - 18 Oct Air New Zealand
17 Oct - 25 Oct Air New Zealand
10 Oct - 24 Oct Air New Zealand
26 Oct - 02 Nov United
25 Oct - 01 Nov Air New Zealand
31 Oct - 07 Nov Porter Airlines (Canada) Ltd
30 Oct - 06 Nov United
30 Oct - 28 Nov Air New Zealand

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

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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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