Cheapest return flights from Ontario to Sydney in June from $1193

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

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

Return flights

11 Jun - 20 Jun Lufthansa
10 Jun - 21 Jun Lufthansa
04 Jun - 14 Jun Lufthansa
19 Jun - 20 Jul Alaska Airlines
01 Jun - 07 Jun Hawaiian Airlines
26 Jun - 30 Jun Alaska Airlines
15 Jun - 31 Jul Lufthansa
26 Jun - 29 Jun Alaska Airlines
14 Jun - 22 Jun Alaska Airlines
06 Jun - 27 Jun Hawaiian Airlines
03 Jun - 26 Jun Lufthansa
23 Jun - 30 Jun Lufthansa
15 Jun - 06 Jul Lufthansa
30 Jun - 14 Jul China Airlines
27 Jun - 11 Jul China Airlines
09 Jun - 06 Jul China Airlines
10 Jun - 06 Jul China Airlines
13 Jun - 02 Jul China Airlines
13 Jun - 06 Jul China Airlines
11 Jun - 06 Jul China Airlines

Also check the deals for one-way 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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