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

Return flights

17 May - 24 May	WestJet
20 May - 27 May	WestJet
19 May - 26 May	WestJet
18 May - 25 May	WestJet
10 May - 17 May	WestJet
26 May - 02 Jun	ANA
12 May - 19 May	WestJet
06 May - 13 May	WestJet
05 May - 12 May	WestJet
24 May - 31 May	WestJet
11 May - 18 May	Qatar Airways
31 May - 07 Jun	WestJet
25 May - 01 Jun	United
30 May - 06 Jun	Air Canada
29 May - 05 Jun	Air Canada
28 May - 04 Jun	Air Canada

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

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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Cheapest return flights from Montreal to Sydney in May from $1486

Return flights