How does KAYAK find such low prices on flights from Illinois to Austin?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Austin.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Austin?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Austin?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Austin?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$75 CHEAP FLIGHTS from Illinois to Austin

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Flight Deals

Cheap Flights from Illinois to Austin

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Austin

Mon, Oct 26 - Thu, Oct 29

6:35 pm - 11:25 amSTL Lambert-St Louis-AUS Austin Bergstrom

16h 50m1 stop Atlanta Hartsfield-Jackson

3:43 pm - 5:40 pmAUS Austin Bergstrom-STL Lambert-St Louis

25h 57m1 stop Atlanta Hartsfield-Jackson

$163Frontier

Sat, Oct 10 - Wed, Oct 14

4:30 pm - 9:57 amSTL Lambert-St Louis-AUS Austin Bergstrom

17h 27m1 stop Orlando

12:08 pm - 5:40 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 32m1 stop Atlanta Hartsfield-Jackson

$175Frontier

Tue, Dec 15 - Tue, Dec 15

8:25 am - 10:35 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 10mnonstop

3:15 pm - 5:20 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$192Southwest

Tue, Dec 15 - Tue, Dec 15

5:30 am - 9:10 amSTL Lambert-St Louis-AUS Austin Bergstrom

3h 40m1 stop Dallas Love Field

3:15 pm - 5:20 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$196Southwest

Tue, Dec 15 - Tue, Dec 15

6:30 am - 12:03 pmSTL Lambert-St Louis-AUS Austin Bergstrom

5h 33m1 stop Chicago O'Hare Intl

4:19 pm - 10:30 pmAUS Austin Bergstrom-STL Lambert-St Louis

6h 11m1 stop Houston George Bush Intcntl

$199United Airlines

Tue, Nov 10 - Sat, Nov 14

5:29 pm - 12:06 amSTL Lambert-St Louis-AUS Austin Bergstrom

6h 37m1 stop Chicago O'Hare Intl

5:46 pm - 9:59 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 13m1 stop Dallas/Fort Worth

$211American Airlines

Tue, Dec 22 - Tue, Dec 29

6:15 am - 1:08 pmSTL Lambert-St Louis-AUS Austin Bergstrom

6h 53m1 stop Houston George Bush Intcntl

5:35 pm - 10:30 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 55m1 stop Houston George Bush Intcntl

$223United Airlines

Thu, Oct 29 - Mon, Nov 2

5:40 am - 9:32 amSTL Lambert-St Louis-AUS Austin Bergstrom

3h 52m1 stop Dallas/Fort Worth

5:03 pm - 11:59 pmAUS Austin Bergstrom-STL Lambert-St Louis

6h 56m1 stop Chicago O'Hare Intl

$231American Airlines

Wed, Dec 9 - Tue, Dec 29

12:36 pm - 8:35 pmSTL Lambert-St Louis-AUS Austin Bergstrom

7h 59m1 stop Atlanta Hartsfield-Jackson

6:43 pm - 11:55 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 12m1 stop Atlanta Hartsfield-Jackson

$241Delta

Wed, Dec 9 - Sat, Dec 12

6:10 am - 12:45 pmMLI Moline Quad-City-AUS Austin Bergstrom

6h 35m1 stop Atlanta Hartsfield-Jackson

3:05 pm - 11:01 pmAUS Austin Bergstrom-MLI Moline Quad-City

7h 56m1 stop Atlanta Hartsfield-Jackson

$261Delta

Recent last minute flight deals from Illinois to Austin

Sat, Sep 26 - Mon, Oct 5

6:30 am - 7:29 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

12h 59m1 stop Denver Intl

8:24 pm - 12:23 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

27h 59m1 stop Denver Intl

$288Frontier

Thu, Sep 24 - Sat, Oct 24

10:26 am - 5:48 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

7h 22m1 stop Atlanta Hartsfield-Jackson

8:21 pm - 12:24 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

28h 03m1 stop Denver Intl

$291Frontier

Sat, Sep 26 - Mon, Oct 5

6:05 am - 12:29 pmMDW Chicago Midway-AUS Austin Bergstrom

6h 24m1 stop Atlanta Hartsfield-Jackson

5:07 pm - 10:44 pmAUS Austin Bergstrom-MDW Chicago Midway

5h 37m1 stop Atlanta Hartsfield-Jackson

$367Delta

Sat, Sep 26 - Mon, Oct 5

7:08 pm - 9:58 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 50mnonstop

6:00 am - 8:56 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 56mnonstop

$377American Airlines

Sat, Sep 26 - Mon, Oct 5

4:50 pm - 9:36 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

4h 46m1 stop Dallas/Fort Worth

6:00 am - 8:56 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 56mnonstop

$387American Airlines

Thu, Sep 24 - Sat, Oct 24

8:40 pm - 11:15 pmMDW Chicago Midway-AUS Austin Bergstrom

2h 35mnonstop

12:50 pm - 3:25 pmAUS Austin Bergstrom-MDW Chicago Midway

2h 35mnonstop

$404Southwest

Thu, Sep 24 - Sat, Oct 24

5:30 am - 10:15 amMDW Chicago Midway-AUS Austin Bergstrom

4h 45m1 stop Atlanta Hartsfield-Jackson

7:50 am - 10:20 amAUS Austin Bergstrom-MDW Chicago Midway

2h 30mnonstop

$414Southwest

Tue, Sep 22 - Wed, Sep 23

1:32 pm - 4:25 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 53mnonstop

3:33 pm - 6:30 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 57mnonstop

$423United Airlines

Tue, Sep 22 - Wed, Sep 23

7:50 pm - 10:45 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 55mnonstop

4:10 pm - 9:32 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

5h 22m1 stop Houston George Bush Intcntl

$433United Airlines

Tue, Sep 22 - Sat, Sep 26

10:44 am - 5:30 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

6h 46m1 stop Atlanta Hartsfield-Jackson

6:25 am - 12:41 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

6h 16m1 stop Atlanta Hartsfield-Jackson

$443Delta

Recent direct flight deals from Illinois to Austin

Tue, Dec 15 - Tue, Dec 15

8:25 am - 10:35 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 10mnonstop

3:15 pm - 5:20 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$192Southwest

Mon, Dec 7 - Tue, Dec 15

1:55 pm - 4:00 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

3:15 pm - 5:20 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$212Southwest

Mon, Oct 26 - Wed, Oct 28

8:50 am - 10:55 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

3:40 pm - 5:45 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$212Southwest

Thu, Nov 5 - Tue, Nov 10

9:50 pm - 11:55 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

7:30 am - 9:35 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$212Southwest

Wed, Nov 11 - Sat, Nov 14

1:35 pm - 4:30 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 55mnonstop

3:47 pm - 6:45 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 58mnonstop

$271American Airlines

Wed, Oct 14 - Sat, Oct 17

9:41 pm - 12:41 amORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 00mnonstop

3:54 pm - 6:59 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 05mnonstop

$271American Airlines

Wed, Jan 20 - Wed, Jan 27

2:49 pm - 5:57 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 08mnonstop

3:49 pm - 6:47 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 58mnonstop

$271American Airlines

Tue, Oct 20 - Tue, Oct 27

1:29 pm - 4:22 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 53mnonstop

1:05 pm - 4:05 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 00mnonstop

$271American Airlines

Wed, Dec 16 - Sat, Jan 9

12:55 pm - 3:59 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 04mnonstop

12:49 pm - 3:42 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 53mnonstop

$277United Airlines

Wed, Dec 16 - Tue, Jan 12

7:45 pm - 10:45 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 00mnonstop

12:49 pm - 3:42 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 53mnonstop

$277United Airlines

Useful Info

Low season	January
High season	March
Cheapest flight	$75

Best time to beat the crowds with an average 16% drop in price.

Most popular time to fly with an average 3% increase in price.

Flight from St. Louis to Austin

How does KAYAK find such low prices on flights from Illinois to Austin?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Austin.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Austin?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Austin?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Austin?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.