Cheapest return flights from Ontario (ONT) to Sydney (SYD), November

20 dates in November, from $ 1,004. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
10 Nov 22 Nov Alaska Airlines
15 Nov 22 Nov Alaska Airlines
12 Nov 19 Nov Alaska Airlines
13 Nov 20 Nov Alaska Airlines
4 Nov 20 Nov Alaska Airlines
4 Nov 14 Nov Alaska Airlines
5 Nov 12 Nov Alaska Airlines
18 Nov 3 Dec Alaska Airlines
17 Nov 24 Nov Alaska Airlines
19 Nov 26 Nov Alaska Airlines
1 Nov 8 Nov Alaska Airlines
30 Nov 9 Dec United
29 Nov 9 Dec United
19 Nov 10 Dec Alaska Airlines
15 Nov 11 Dec Alaska Airlines
15 Nov 13 Dec Alaska Airlines
13 Nov 11 Dec Alaska Airlines
25 Nov 2 Dec Frontier Airlines
27 Nov 4 Dec Frontier Airlines
24 Nov 15 Dec Alaska Airlines
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Updated Oct 13, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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