Cheapest return flights from Montreal to Sydney in September from $1503

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 September 2025 (see full year).

Return flights

03 Sep - 10 Sep Air New Zealand
08 Sep - 15 Sep Air New Zealand
16 Sep - 23 Sep Air New Zealand
22 Sep - 29 Sep Air New Zealand
01 Sep - 08 Sep Air New Zealand
09 Sep - 16 Sep Air New Zealand
15 Sep - 22 Sep Air New Zealand
02 Sep - 09 Sep Air New Zealand
14 Sep - 21 Sep Air New Zealand
21 Sep - 28 Sep Air New Zealand
30 Sep - 07 Oct Qatar Airways
24 Sep - 01 Oct Air New Zealand
29 Sep - 06 Oct Air New Zealand
28 Sep - 05 Oct United
27 Sep - 04 Oct Air Canada
25 Sep - 02 Oct United
26 Sep - 03 Oct United

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

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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