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

Return flights

04 Jul - 18 Jul	Alaska Airlines
29 Jul - 09 Aug	Alaska Airlines
25 Jul - 08 Aug	Alaska Airlines
28 Jul - 08 Aug	Alaska Airlines
28 Jul - 26 Aug	China Airlines
11 Jul - 25 Jul	Alaska Airlines
04 Jul - 25 Jul	Alaska Airlines
08 Jul - 15 Jul	China Airlines
15 Jul - 30 Jul	China Airlines
31 Jul - 07 Aug	China Airlines
01 Jul - 15 Jul	China Airlines
06 Jul - 16 Jul	Qatar Airways
05 Jul - 19 Jul	Qatar Airways

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

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Ontario to Sydney in July from $1035

Return flights