Saint Louis (STL) to Sydney (SYD) flights from $1,401* 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!

Find our cheapest Saint Louis (STL) to Sydney (SYD) flights departing in the next 12 months

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*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