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

Return flights

21 Oct - 28 Oct	Air Canada
21 Oct - 02 Nov	Air Canada
19 Oct - 27 Nov	Air Canada
28 Oct - 06 Nov	Air Canada
24 Oct - 31 Oct	Air Canada
15 Oct - 31 Oct	Air Canada
19 Oct - 25 Oct	Air Canada
19 Oct - 16 Nov	ANA
06 Oct - 20 Oct	United
07 Oct - 14 Oct	United
08 Oct - 22 Oct	United
07 Oct - 21 Oct	United
07 Oct - 22 Oct	United
01 Oct - 28 Oct	United
30 Oct - 02 Nov	ANA
31 Oct - 30 Nov	Air Canada
10 Oct - 15 Nov	United
31 Oct - 23 Nov	Cathay Pacific

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

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

Cheapest return flights from Toronto to Sydney in October from 1029€

Return flights