Cheapest one-way flights from Ontario to Sydney in December from 408€

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

One-Way flights

05 Dec Frontier Airlines
03 Dec Hawaiian Airlines
10 Dec Alaska Airlines
06 Dec Hawaiian Airlines
11 Dec Hawaiian Airlines
12 Dec Frontier Airlines
20 Dec Hawaiian Airlines
15 Dec Korean Air
31 Dec Hawaiian Airlines
25 Dec Hawaiian Airlines

Also check the deals for return flights from Ontario to Sydney in December.

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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