Flights to Southwest Austin from Chicago - $72

View $72 flight on Thu, Aug 14, 2025Opens in a new window

Popular airlines from Chicago to Southwest Austin

  • Southwest Airlines

    Southwest Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Spirit Airlines

    Spirit Airlines

  • Alaska Airlines

    Alaska Airlines

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Cheap Flights from Chicago to Southwest Austin (CHI-AUS)

Prices were available within the past 7 days and start at $72 for one-way flights and $144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Sep 29 - Thu, Oct 9
ORD
Chicago
AUS
Austin
$144 Roundtrip, found 5 hours ago
$144
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Chicago to Austin, returning Thu, Oct 9, priced at $144 found 5 hours ago
Spirit Airlines
Wed, Aug 20 - Mon, Aug 25
ORD
Chicago
AUS
Austin
$147 Roundtrip, found 5 hours ago
$147
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Wed, Aug 20 from Chicago to Austin, returning Mon, Aug 25, priced at $147 found 5 hours ago
Spirit Airlines
Tue, Aug 19 - Mon, Aug 25
ORD
Chicago
AUS
Austin
$153 Roundtrip, just found
$153
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Aug 19 from Chicago to Austin, returning Mon, Aug 25, priced at $153 just found
American Airlines
Wed, Aug 20 - Mon, Aug 25
ORD
Chicago
AUS
Austin
$162 Roundtrip, found 5 hours ago
$162
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Aug 20 from Chicago to Austin, returning Mon, Aug 25, priced at $162 found 5 hours ago
United
Tue, Aug 19 - Mon, Aug 25
ORD
Chicago
AUS
Austin
$168 Roundtrip, just found
$168
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Chicago to Austin, returning Mon, Aug 25, priced at $168 just found
Southwest Airlines
Wed, Aug 20 - Mon, Aug 25
ORD
Chicago
AUS
Austin
$172 Roundtrip, found 5 hours ago
$172
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Chicago to Austin, returning Mon, Aug 25, priced at $172 found 5 hours ago

Find the cheapest month to fly from Chicago (CHI) to Austin (AUS)

April is typically the cheapest month to fly

From $89 - $392 per traveler.

Graph displaying average flight prices per month

Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Austin-Bergstrom Intl. AUS. Cheapest option available. Flights from $274
AUS
Austin-Bergstrom Intl.
Cheapest
Flights from $274
*Available to One Key members.