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Cheap flights from Chicago (CHI) to Sydney (SYD)

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How to find the cheapest flight from Chicago (CHI) to Sydney (SYD)

How to find the cheapest flight from Chicago (CHI) to Sydney (SYD)
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How to find the cheapest flight from Chicago (CHI) to Sydney (SYD)
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How to find the cheapest flight from Chicago (CHI) to Sydney (SYD)
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Cheap flights from Chicago to Sydney in September , October 2026

21 Sep - 22 Oct $ 1,178.00
CHI
Chicago
Frontier Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Frontier Airlines
2 STOPS
CHI
Chicago
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10 Sep - 04 Oct $ 1,440.00
CHI
Chicago
Etihad Airways
1 STOPS
SYD
Sydney
SYD
Sydney
Etihad Airways
1 STOPS
CHI
Chicago
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08 Sep - 08 Oct $ 2,655.00
CHI
Chicago
Air Canada
1 STOPS
SYD
Sydney
SYD
Sydney
Air Canada
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Sydney

10 Sep - 01 Oct $ 1,454.00
CHI
Chicago
Etihad Airways
1 STOPS
SYD
Sydney
SYD
Sydney
Etihad Airways
1 STOPS
CHI
Chicago
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12 Sep - 01 Oct $ 1,496.00
CHI
Chicago
Etihad Airways
1 STOPS
SYD
Sydney
SYD
Sydney
Etihad Airways
1 STOPS
CHI
Chicago
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07 Sep - 30 Sep $ 1,901.00
CHI
Chicago
United Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
1 STOPS
CHI
Chicago
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One-way flights to Sydney from Chicago

8:00 PM - 10:25 AM
Etihad Airways
1 Stops
43h 10m
CHI - SYD
$ 695
Kiwi
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8:25 PM - 9:05 PM
Etihad Airways
1 Stops
29h 25m
CHI - SYD
$ 737
Kiwi
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7:20 PM - 8:05 PM
Qatar Airways
1 Stops
30h 50m
CHI - SYD
$ 970
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Sydney (SYD)

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