Cheapest return flights from Montreal to Sydney in October from $1311

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

07 Oct - 14 Oct ANA
14 Oct - 21 Oct ANA
06 Oct - 13 Oct United
12 Oct - 19 Oct United
20 Oct - 27 Oct United
22 Oct - 29 Oct United
29 Oct - 05 Nov United
26 Oct - 02 Nov United
28 Oct - 04 Nov United
06 Oct - 23 Oct United
02 Oct - 09 Oct United
04 Oct - 11 Oct United
16 Oct - 23 Oct United
31 Oct - 07 Nov United
30 Oct - 06 Nov United

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

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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