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.

$65 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

Fri, Oct 2 - Tue, Oct 6

2:29 pm - 5:48 pmSTL Lambert-St Louis-AUS Austin Bergstrom

27h 19m1 stop Atlanta Hartsfield-Jackson

6:33 pm - 1:10 pmAUS Austin Bergstrom-STL Lambert-St Louis

18h 37m1 stop Atlanta Hartsfield-Jackson

$166Frontier

Fri, Sep 11 - Mon, Sep 14

2:29 pm - 5:48 pmSTL Lambert-St Louis-AUS Austin Bergstrom

27h 19m1 stop Atlanta Hartsfield-Jackson

1:25 pm - 7:17 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 52m1 stop Denver Intl

$175Frontier

Tue, Sep 22 - Sat, Sep 26

8:50 pm - 10:55 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

8:00 am - 10:05 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Thu, Oct 15 - Wed, Oct 21

9:45 pm - 11:50 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

12:35 pm - 2:40 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Wed, Oct 7 - Sat, Oct 10

3:12 pm - 7:57 pmSTL Lambert-St Louis-AUS Austin Bergstrom

4h 45m1 stop Houston George Bush Intcntl

3:37 pm - 9:21 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 44m1 stop Chicago O'Hare Intl

$222United Airlines

Sat, Oct 3 - Mon, Oct 5

6:15 am - 11:08 amSTL Lambert-St Louis-AUS Austin Bergstrom

4h 53m1 stop Houston George Bush Intcntl

3:37 pm - 9:21 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 44m1 stop Chicago O'Hare Intl

$222United Airlines

Thu, Sep 17 - Mon, Sep 21

10:05 am - 4:02 pmSTL Lambert-St Louis-AUS Austin Bergstrom

5h 57m1 stop Atlanta Hartsfield-Jackson

5:07 pm - 11:42 pmAUS Austin Bergstrom-STL Lambert-St Louis

6h 35m1 stop Atlanta Hartsfield-Jackson

$227Delta

Thu, Oct 1 - Mon, Oct 5

5:43 am - 10:44 amSTL Lambert-St Louis-AUS Austin Bergstrom

5h 01m1 stop Dallas/Fort Worth

6:00 am - 12:35 pmAUS Austin Bergstrom-STL Lambert-St Louis

6h 35m1 stop Chicago O'Hare Intl

$227American Airlines

Mon, Sep 28 - Wed, Sep 30

5:43 am - 9:46 amSTL Lambert-St Louis-AUS Austin Bergstrom

4h 03m1 stop Dallas/Fort Worth

10:39 am - 2:44 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 05m1 stop Dallas/Fort Worth

$227American Airlines

Tue, Nov 10 - Fri, Nov 13

5:48 pm - 11:30 pmSTL Lambert-St Louis-AUS Austin Bergstrom

5h 42m1 stop Atlanta Hartsfield-Jackson

6:25 am - 11:15 amAUS Austin Bergstrom-STL Lambert-St Louis

4h 50m1 stop Atlanta Hartsfield-Jackson

$237Delta

Recent last minute flight deals from Illinois to Austin

Sun, Aug 30 - Sat, Sep 12

7:05 am - 4:39 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

9h 34m1 stop Atlanta Hartsfield-Jackson

3:32 pm - 5:38 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

14h 06m1 stop Las Vegas Harry Reid Intl

$280Frontier

Sat, Aug 29 - Sat, Sep 5

7:11 am - 4:39 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

9h 28m1 stop Atlanta Hartsfield-Jackson

8:15 pm - 1:36 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

17h 21m1 stop Denver Intl

$284Frontier

Wed, Aug 26 - Sat, Sep 5

11:00 am - 1:58 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 58mnonstop

5:32 pm - 8:30 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 58mnonstop

$327United Airlines

Sat, Aug 29 - Wed, Sep 9

8:10 pm - 11:05 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 55mnonstop

6:35 am - 9:30 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 55mnonstop

$327United Airlines

Wed, Aug 26 - Wed, Sep 9

10:15 am - 12:50 pmMDW Chicago Midway-AUS Austin Bergstrom

2h 35mnonstop

4:40 pm - 7:10 pmAUS Austin Bergstrom-MDW Chicago Midway

2h 30mnonstop

$327Southwest

Sat, Aug 29 - Wed, Sep 9

2:20 pm - 4:50 pmMDW Chicago Midway-AUS Austin Bergstrom

2h 30mnonstop

4:40 pm - 7:10 pmAUS Austin Bergstrom-MDW Chicago Midway

2h 30mnonstop

$327Southwest

Sat, Aug 29 - Wed, Sep 9

6:11 am - 12:29 pmMDW Chicago Midway-AUS Austin Bergstrom

6h 18m1 stop Atlanta Hartsfield-Jackson

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

5h 37m1 stop Atlanta Hartsfield-Jackson

$347Delta

Sat, Aug 29 - Sat, Sep 5

5:42 am - 10:38 amSTL Lambert-St Louis-AUS Austin Bergstrom

4h 56m1 stop Dallas/Fort Worth

5:41 pm - 11:42 pmAUS Austin Bergstrom-STL Lambert-St Louis

6h 01m1 stop Dallas/Fort Worth

$351American Airlines

Wed, Aug 26 - Mon, Aug 31

5:42 am - 9:43 amSTL Lambert-St Louis-AUS Austin Bergstrom

4h 01m1 stop Dallas/Fort Worth

7:45 am - 12:54 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 09m1 stop Chicago O'Hare Intl

$351American Airlines

Sat, Aug 29 - Sun, Sep 6

6:11 am - 12:29 pmMDW Chicago Midway-AUS Austin Bergstrom

6h 18m1 stop Atlanta Hartsfield-Jackson

10:42 am - 3:44 pmAUS Austin Bergstrom-MDW Chicago Midway

5h 02m1 stop Atlanta Hartsfield-Jackson

$367Delta

Recent direct flight deals from Illinois to Austin

Tue, Sep 22 - Sat, Sep 26

8:50 pm - 10:55 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

8:00 am - 10:05 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Thu, Oct 15 - Wed, Oct 21

9:45 pm - 11:50 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

12:35 pm - 2:40 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Wed, Oct 21 - Sat, Oct 24

8:50 pm - 10:55 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

7:15 am - 9:20 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Thu, Sep 24 - Sat, Sep 26

8:45 pm - 10:50 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

8:00 am - 10:05 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$217Southwest

Mon, Nov 23 - Thu, Nov 26

7:45 pm - 11:00 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 15mnonstop

5:00 pm - 8:01 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 01mnonstop

$261American Airlines

Thu, Sep 24 - Mon, Sep 28

9:13 pm - 11:59 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 46mnonstop

6:38 pm - 9:49 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 11mnonstop

$261American Airlines

Sat, Sep 19 - Wed, Sep 23

9:22 am - 12:20 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 58mnonstop

6:35 am - 9:30 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 55mnonstop

$261United Airlines

Wed, Dec 2 - Mon, Jan 11

8:40 am - 11:45 amORD Chicago O'Hare Intl-AUS Austin Bergstrom

3h 05mnonstop

10:34 am - 1:15 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 41mnonstop

$261United Airlines

Sat, Oct 17 - Mon, Oct 19

8:10 am - 11:04 amORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 54mnonstop

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

3h 05mnonstop

$261American Airlines

Thu, Sep 17 - Wed, Sep 23

9:13 pm - 11:59 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 46mnonstop

3:28 pm - 6:34 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 06mnonstop

$261American Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$65

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

Most popular time to fly and prices are also 9% lower on average.

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.

Fredericksburg

Georgetown

Cedar Park

Bastrop

Dripping Springs

Seguin

Buda

Canyon Lake

Horseshoe Bay

Flatonia

Everything you need to know for your flight to Austin

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Complete your trip

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Information on the airport you'll fly into in Austin

Austin (AUS)

AUS

$65 Find Cheap Flights from Illinois to Austin - Compare and Save

Cheap Flights from Illinois to Austin

Recent round-trip flight deals from Illinois to Austin

Recent one-way flight deals from Illinois to Austin

Recent last minute flight deals from Illinois to Austin

Recent direct flight deals from Illinois to Austin

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Low season

High season

Cheapest flight

FAQs for booking flights from Illinois to Austin

Traveling to a place near Austin?

Everything you need to know for your flight to Austin

Information on the airport you'll fly into in Austin

Cabin class types available on flights to Illinois

Complete your trip to Austin with a hotel stay or car rental

Find direct flights for Austin

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Choose which airport to fly into in Austin

Find deals for your return flight