Cheapest one-way flights from Ontario to Sydney in April from $637

AirHint found the following cheapest one-way flights from Ontario (ONT) to Sydney (SYD) in April 2026 (see full year).

One-Way flights

01 Apr Alaska Airlines
07 Apr China Airlines
04 Apr China Airlines
20 Apr China Airlines
11 Apr China Airlines
10 Apr China Airlines
08 Apr China Airlines
25 Apr China Airlines
06 Apr China Airlines
29 Apr China Airlines

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

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Feel free to contact us with any feedback or request another flight research.