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

Cheapest month: November 2026, from $ 991. Book in one tap, or open a month for every date.

All destinations from Ontario (ONT)

One-wayReturn

  • October 2026

    19 Oct – 1 Dec 43 nights
    $ 1,034 return
    Alaska Airlines
    Price seen 12 Oct
    October dates

  • November 2026

    17 Nov – 16 Feb 2027 91 nights
    $ 991 return Cheapest month
    Alaska Airlines
    Price seen 13 Oct
    November dates

  • December 2026

    1–8 Dec 7 nights
    $ 1,025 return
    Alaska Airlines
    Price seen 12 Oct
    December dates

  • January 2027

    30 Jan – 7 Mar 2027 36 nights
    $ 1,035 return
    Alaska Airlines
    Price seen 12 Oct
    January dates

  • March 2027

    2–9 Mar 2027 7 nights
    $ 1,009 return
    Alaska Airlines
    Price seen 12 Oct
    March dates

  • May 2027

    25 May – 2 Jun 2027 8 nights
    $ 1,137 return
    Air New Zealand
    Price seen 13 Oct
    May dates
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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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