Cheapest return flights from Montreal to Sydney in September from $1526

AirHint found the following cheapest return flights from Montreal (YUL) to Sydney (SYD) in September 2026 (see full year).

Return flights

01 Sep - 08 Sep WestJet
04 Sep - 11 Sep WestJet
15 Sep - 22 Sep WestJet
29 Sep - 06 Oct WestJet
25 Sep - 19 Oct WestJet
24 Sep - 01 Oct Flair Airlines
07 Sep - 14 Sep WestJet
25 Sep - 02 Oct WestJet
08 Sep - 15 Sep ANA
20 Sep - 27 Sep Flair Airlines
10 Sep - 17 Sep WestJet
02 Sep - 09 Sep United
06 Sep - 13 Sep United
14 Sep - 21 Sep United
28 Sep - 05 Oct United
30 Sep - 07 Oct United
27 Sep - 04 Oct United
26 Sep - 03 Oct United

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

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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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