Saint Louis (STL) to Sydney (SYD) flights from $1,359* 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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Find the best fares for flights from Saint Louis (STL) to Sydney (SYD)

Mar 2026
From$2,940*
Refreshed: 4 hrs ago
Per person, return/Economy
Apr 2026
From$1,410*
Refreshed: 1 day ago
Per person, return/Economy
May 2026
From$1,364*
Refreshed: 1 day ago
Per person, return/Economy
$1.7K
$14.3K
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    • Range$1,717-$14,283

    *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)
    May 06, 2026 - Aug 19, 2026
    From
    $1,364
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    May 05, 2026 - Aug 19, 2026
    From
    $1,364
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    May 06, 2026 - May 20, 2026
    From
    $1,365
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Jun 09, 2026 - Jul 07, 2026
    From
    $1,369
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    May 04, 2026 - Aug 17, 2026
    From
    $1,374
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    May 09, 2026 - Aug 19, 2026
    From
    $1,410
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    Apr 25, 2026 - May 20, 2026
    From
    $1,410
    Refreshed: 1 day ago
    Per person, return
    Economy

    Saint Louis (STL)to

    Sydney (SYD)
    May 07, 2026 - Aug 19, 2026
    From
    $1,414
    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