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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

28 Sep - 27 Oct $ 1,723.00
CHI
Chicago
All Nippon Airways
1 STOPS
SYD
Sydney
SYD
Sydney
All Nippon Airways
1 STOPS
CHI
Chicago
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28 Sep - 13 Oct $ 1,727.00
CHI
Chicago
All Nippon Airways
1 STOPS
SYD
Sydney
SYD
Sydney
All Nippon Airways
1 STOPS
CHI
Chicago
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28 Sep - 20 Oct $ 2,098.00
CHI
Chicago
United Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Sydney

28 Sep - 01 Oct $ 1,927.00
CHI
Chicago
Air Canada
2 STOPS
SYD
Sydney
SYD
Sydney
Air Canada
2 STOPS
CHI
Chicago
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28 Sep - 01 Oct $ 2,056.00
CHI
Chicago
Cathay Pacific
1 STOPS
SYD
Sydney
SYD
Sydney
Cathay Pacific
1 STOPS
CHI
Chicago
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28 Sep - 01 Oct $ 3,643.00
CHI
Chicago
All Nippon Airways
1 STOPS
SYD
Sydney
SYD
Sydney
All Nippon Airways
1 STOPS
CHI
Chicago
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One-way flights to Sydney from Chicago

5:45 PM - 9:15 AM
AirAsia X
2 Stops
34h 50m
CHI - SYD
$ 894
Kiwi
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1:03 PM - 12:00 PM
Alaska Airlines
2 Stops
38h 47m
CHI - SYD
$ 1,074
Kiwi
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7:03 PM - 11:10 PM
Qantas
1 Stops
21h 2m
CHI - SYD
$ 1,382
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.