Saint Louis (STL) to Sydney (SYD) flights from $1,739* with Air New Zealand

Search and book flights between Saint Louis and Sydney by comparing our fares shown on this page. Plan your adventure today!

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From November 2026*, Air New Zealand will operate flights to and from Western Sydney International Airport, alongside our existing services at Sydney Kingsford Smith Airport.

*Subject to Government Approvals.

Find the best fares for flights from Saint Louis (STL) to Sydney (SYD)

May 2026
From$1,896*
Refreshed: 1 day ago
Per person, return/Economy
Jun 2026
From$1,838*
Refreshed: 8 hrs ago
Per person, return/Economy
Jul 2026
From$1,790*
Refreshed: 1 day ago
Per person, return/Economy
$1.8K
$3.1K
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    • Range$1,838-$3,131

    *Fares displayed have been available for flights searched within the last 24 hours and may not currently be available at time of booking. Flights may not be available at peak times or on all flights. Additional fees, including service/card payment fees may apply. Other terms and conditions may also apply.

    Compare & book Air NZ Saint Louis (STL) to Sydney (SYD) flights departing in the next 90 days

    Saint Louis (STL)to

    Sydney (SYD)
    Jul 27, 2026 - Aug 08, 2026
    From
    $1,790
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 03, 2026 - Jun 11, 2026
    From
    $1,838
    Refreshed: 8 hrs ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 01, 2026 - Jun 11, 2026
    From
    $1,838
    Refreshed: 8 hrs ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jul 31, 2026 - Aug 08, 2026
    From
    $1,840
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 09, 2026 - Jul 07, 2026
    From
    $1,850
    Refreshed: 20 hrs ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 08, 2026 - Jul 07, 2026
    From
    $1,855
    Refreshed: 20 hrs ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 02, 2026 - Jun 14, 2026
    From
    $1,856
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 01, 2026 - Jun 14, 2026
    From
    $1,862
    Refreshed: 1 day ago
    Per person, return
    Economy

    *Fares displayed have been available for flights searched within the last 24 hours and may not currently be available at time of booking. Flights may not be available at peak times or on all flights. Additional fees, including service/card payment fees may apply. Other terms and conditions may also apply.

    Explore flights to Sydney

    *Fares displayed are all inclusive round trip fares including all taxes, fees and other mandatory charges. Price may be based on travel to or from SYD or WSI airports