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Cheap flights from St Louis (STL) to Sydney (SYD)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Sydney (SYD)

How to find the cheapest flight from St Louis (STL) to Sydney (SYD)
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How to find the cheapest flight from St Louis (STL) to Sydney (SYD)
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How to find the cheapest flight from St Louis (STL) to Sydney (SYD)
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Cheap flights from St Louis to Sydney in March , April 2026

31 Mar - 27 Apr $ 1,345.00
STL
St Louis
Qantas
3 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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31 Mar - 28 Apr $ 1,346.00
STL
St Louis
Qantas
3 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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08 Mar - 09 Apr $ 3,085.00
STL
St Louis
Qantas
2 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Sydney

18 Mar - 01 Apr $ 1,774.00
STL
St Louis
Alaska Airlines
3 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
STL
St Louis
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25 Mar - 01 Apr $ 1,774.00
STL
St Louis
Alaska Airlines
3 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
STL
St Louis
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23 Mar - 01 Apr $ 1,795.00
STL
St Louis
Alaska Airlines
3 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
STL
St Louis
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One-way flights to Sydney from St Louis

12:14 PM - 9:00 AM
Fiji Airways
3 Stops
32h 36m
STL - SYD
$ 512
Kiwi
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4:47 PM - 9:30 PM
United Airlines
1 Stops
22h 13m
STL - SYD
$ 678
Kiwi
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4:47 PM - 10:35 PM
United Airlines
2 Stops
23h 18m
STL - SYD
$ 678
Kiwi
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How to find the cheapest flight from St Louis (STL) to Sydney (SYD)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.