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Cheap flights from Chicago (CHI) to Austin (AUS)

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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 Chicago (CHI) to Austin (AUS)

How to find the cheapest flight from Chicago (CHI) to Austin (AUS)
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How to find the cheapest flight from Chicago (CHI) to Austin (AUS)
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How to find the cheapest flight from Chicago (CHI) to Austin (AUS)
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Cheap flights from Chicago to Austin in December 2025 , January 2026

25 Dec - 08 Jan $ 178.00
CHI
Chicago
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates
22 Dec - 26 Jan $ 204.00
CHI
Chicago
Frontier Airlines
DIRECT
AUS
Austin
AUS
Austin
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates
22 Dec - 08 Jan $ 204.00
CHI
Chicago
Frontier Airlines
DIRECT
AUS
Austin
AUS
Austin
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates

Last minute flights from Chicago to Austin

30 Dec - 31 Dec $ 373.00
CHI
Chicago
United Airlines
DIRECT
AUS
Austin
AUS
Austin
United Airlines
DIRECT
CHI
Chicago
Pick dates
24 Dec - 31 Dec $ 399.00
CHI
Chicago
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
24 Dec - 31 Dec $ 423.00
CHI
Chicago
United Airlines
DIRECT
AUS
Austin
AUS
Austin
United Airlines
DIRECT
CHI
Chicago
Pick dates

One-way flights to Austin from Chicago

7:40 PM - 7:40 PM
United Airlines
0 Stops
3h 8m
CHI - AUS
$ 125
Kiwi
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7:00 AM - 9:00 PM
Frontier Airlines
1 Stops
17h 14m
CHI - AUS
$ 138
Kiwi
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7:25 AM - 7:25 AM
Frontier Airlines
0 Stops
2h 50m
CHI - AUS
$ 164
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to Austin (AUS)

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