Cheapest return flights from Montreal to Sydney in October from 892€

AirHint found the following cheapest return flights from Montreal (YUL) to Sydney (SYD) in October 2025 (see full year).

Return flights

17 Oct - 24 Oct Porter Airlines (Canada) Ltd
15 Oct - 22 Oct Porter Airlines (Canada) Ltd
10 Oct - 24 Oct WestJet
21 Oct - 28 Oct Porter Airlines (Canada) Ltd
16 Oct - 23 Oct Porter Airlines (Canada) Ltd
08 Oct - 15 Oct WestJet
20 Oct - 27 Oct Porter Airlines (Canada) Ltd
18 Oct - 18 Nov Porter Airlines (Canada) Ltd
18 Oct - 25 Oct Porter Airlines (Canada) Ltd
23 Oct - 30 Oct Air Transat
05 Oct - 12 Oct WestJet
22 Oct - 10 Nov Porter Airlines (Canada) Ltd
28 Oct - 04 Nov Qatar Airways
27 Oct - 03 Nov Qatar Airways
26 Oct - 02 Nov WestJet
29 Oct - 05 Nov Porter Airlines (Canada) Ltd
31 Oct - 07 Nov Air Canada
25 Oct - 01 Nov WestJet
09 Oct - 16 Nov Porter Airlines (Canada) Ltd
30 Oct - 06 Nov WestJet

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Feel free to contact us with any feedback or request another flight research.