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

Return flights

25 Jan - 09 Feb	China Airlines
25 Jan - 01 Feb	China Airlines
25 Jan - 06 Feb	China Airlines
18 Jan - 08 Feb	China Airlines
11 Jan - 26 Jan	China Airlines
10 Jan - 26 Jan	China Airlines
17 Jan - 09 Feb	China Airlines
17 Jan - 08 Feb	China Airlines
18 Jan - 25 Jan	China Airlines
24 Jan - 15 Feb	China Airlines
20 Jan - 27 Jan	China Airlines
27 Jan - 03 Feb	China Airlines
11 Jan - 23 Jan	China Airlines
11 Jan - 18 Jan	China Airlines
09 Jan - 16 Jan	China Airlines
13 Jan - 20 Jan	China Airlines
15 Jan - 18 Jan	China Airlines
13 Jan - 18 Jan	China Airlines
29 Jan - 10 Feb	China Airlines
26 Jan - 12 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 1944€

Return flights