Cheapest one-way flights from Ontario to Sydney in June from $486

Best time to book flights for Ontario (ONT) to Sydney (SYD) flights at AirHint

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

One-Way flights

03 Jun Alaska Airlines
08 Jun Alaska Airlines
04 Jun Alaska Airlines
05 Jun Alaska Airlines
01 Jun Alaska Airlines
21 Jun Alaska Airlines
12 Jun Alaska Airlines
13 Jun Alaska Airlines
24 Jun WestJet
26 Jun Hawaiian Airlines

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

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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