Cheapest return flights from Montreal to Sydney in September from 750€

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 Porter Airlines (Canada) Ltd
05 Sep - 12 Sep Porter Airlines (Canada) Ltd
14 Sep - 24 Oct WestJet
10 Sep - 17 Sep Porter Airlines (Canada) Ltd
06 Sep - 13 Sep WestJet
04 Sep - 11 Sep Porter Airlines (Canada) Ltd
06 Sep - 27 Sep Air Canada
04 Sep - 18 Sep Porter Airlines (Canada) Ltd
23 Sep - 30 Sep Porter Airlines (Canada) Ltd
12 Sep - 19 Sep Porter Airlines (Canada) Ltd
14 Sep - 21 Sep WestJet
27 Sep - 04 Oct Air Canada
30 Sep - 30 Oct Air Canada
29 Sep - 06 Oct Air Canada
24 Sep - 01 Oct Air Canada
25 Sep - 02 Oct Porter Airlines (Canada) Ltd
26 Sep - 03 Oct WestJet
28 Sep - 05 Oct WestJet
30 Sep - 07 Oct Air Canada

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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