AirHint found the following cheapest return flights from Ontario (ONT) to Sydney (SYD) in January 2026 (see full year).

Return flights

16 Jan - 25 Jan	Hawaiian Airlines
16 Jan - 20 Jan	Hawaiian Airlines
18 Jan - 31 Jan	Hawaiian Airlines
07 Jan - 18 Jan	Hawaiian Airlines
15 Jan - 25 Jan	Hawaiian Airlines
15 Jan - 18 Jan	Hawaiian Airlines
03 Jan - 15 Jan	Hawaiian Airlines
01 Jan - 16 Jan	China Airlines
23 Jan - 02 Feb	China Airlines
29 Jan - 02 Feb	China Airlines
15 Jan - 29 Jan	Qatar Airways
17 Jan - 31 Jan	Qatar Airways
31 Jan - 21 Feb	Qatar Airways
15 Jan - 26 Feb	Qatar Airways

Also check the deals for one-way flights from Ontario to Sydney in January.

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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Cheapest return flights from Ontario to Sydney in January from $1053

Return flights