Cheapest one-way flights from Ontario to Sydney in October from 433€

AirHint found the following cheapest one-way flights from Ontario (ONT) to Sydney (SYD) in October 2025 (see full year).

One-Way flights

21 Oct Alaska Airlines
23 Oct Hawaiian Airlines
02 Oct Hawaiian Airlines
27 Oct WestJet
22 Oct China Airlines
24 Oct China Airlines
25 Oct China Airlines
28 Oct China Airlines
15 Oct China Airlines
13 Oct China Airlines

Also check the deals for return flights from Ontario 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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