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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 September , October 2026

28 Sep - 22 Oct $ 1,262.00
STL
St Louis
Frontier Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Frontier Airlines
3 STOPS
STL
St Louis
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12 Sep - 06 Oct $ 1,974.00
STL
St Louis
Qatar Airways
2 STOPS
SYD
Sydney
SYD
Sydney
Qatar Airways
2 STOPS
STL
St Louis
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09 Sep - 02 Oct $ 3,495.00
STL
St Louis
Qantas
1 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Sydney

28 Sep - 01 Oct $ 1,656.00
STL
St Louis
Frontier Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Frontier Airlines
3 STOPS
STL
St Louis
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12 Sep - 30 Sep $ 2,269.00
STL
St Louis
Qantas
2 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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09 Sep - 30 Sep $ 3,439.00
STL
St Louis
Qantas
1 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
STL
St Louis
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One-way flights to Sydney from St Louis

12:17 PM - 11:30 PM
Qantas
2 Stops
28h 13m
STL - SYD
$ 742
Kiwi
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11:01 AM - 12:45 AM
Cathay Pacific
2 Stops
33h 44m
STL - SYD
$ 810
Kiwi
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5:00 PM - 10:55 PM
Qantas
1 Stops
22h 55m
STL - SYD
$ 1,125
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.