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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 April , May 2026

28 Apr - 06 May $ 1,195.00
CHI
Chicago
Frontier Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Frontier Airlines
1 STOPS
CHI
Chicago
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14 Apr - 09 May $ 1,839.00
CHI
Chicago
Alaska Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
CHI
Chicago
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12 Apr - 09 May $ 2,241.00
CHI
Chicago
Alaska Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
2 STOPS
CHI
Chicago
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Last minute flights from Chicago to Sydney

25 Apr - 30 Apr $ 1,102.00
CHI
Chicago
Spirit Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Spirit Airlines
2 STOPS
CHI
Chicago
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10 Apr - 30 Apr $ 1,897.00
CHI
Chicago
United Airlines
1 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
1 STOPS
CHI
Chicago
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10 Apr - 30 Apr $ 1,933.00
CHI
Chicago
Qantas
1 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
CHI
Chicago
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One-way flights to Sydney from Chicago

4:03 PM - 9:00 AM
Fiji Airways
2 Stops
28h 47m
CHI - SYD
$ 501
Kiwi
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8:10 PM - 9:00 AM
Turkish Airlines
2 Stops
32h
CHI - SYD
$ 779
Kiwi
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7:21 PM - 11:05 PM
Qantas
1 Stops
20h 44m
CHI - SYD
$ 1,103
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.