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.

$62 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, Sep 14 - Tue, Sep 29

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

$130Frontier

Thu, Oct 29 - Mon, Nov 2

10:35 am - 9:53 amSTL Lambert-St Louis-AUS Austin Bergstrom

23h 18m1 stop Atlanta Hartsfield-Jackson

10:50 am - 9:40 amAUS Austin Bergstrom-STL Lambert-St Louis

22h 50m1 stop Atlanta Hartsfield-Jackson

$134Frontier

Tue, Oct 27 - Tue, Oct 27

8:30 am - 10:35 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

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

2h 05mnonstop

$180Southwest

Tue, Oct 27 - Tue, Oct 27

8:30 am - 10:35 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

4:10 pm - 7:55 pmAUS Austin Bergstrom-STL Lambert-St Louis

3h 45m1 stop Dallas Love Field

$184Southwest

Tue, Oct 27 - Tue, Oct 27

6:32 am - 10:38 amSTL Lambert-St Louis-AUS Austin Bergstrom

4h 06m1 stop Dallas/Fort Worth

4:29 pm - 10:00 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 31m1 stop Dallas/Fort Worth

$187American Airlines

Thu, Dec 10 - Sat, Dec 12

7:06 pm - 10:59 pmSTL Lambert-St Louis-AUS Austin Bergstrom

3h 53m1 stop Dallas/Fort Worth

2:45 pm - 7:39 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 54m1 stop Chicago O'Hare Intl

$187American Airlines

Mon, Sep 14 - Tue, Sep 29

4:59 pm - 10:04 pmSTL Lambert-St Louis-AUS Austin Bergstrom

5h 05m1 stop Atlanta Hartsfield-Jackson

3:00 pm - 7:58 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 58m1 stop Atlanta Hartsfield-Jackson

$193Delta

Fri, Sep 4 - Mon, Sep 7

5:30 pm - 11:05 pmSTL Lambert-St Louis-AUS Austin Bergstrom

5h 35m1 stop Chicago O'Hare Intl

6:35 am - 12:02 pmAUS Austin Bergstrom-STL Lambert-St Louis

5h 27m1 stop Chicago O'Hare Intl

$216United Airlines

Wed, Oct 14 - Sat, Oct 17

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

Thu, Sep 24 - Sat, Sep 26

6:00 am - 11:03 amSTL Lambert-St Louis-AUS Austin Bergstrom

5h 03m1 stop Atlanta Hartsfield-Jackson

5:15 am - 12:32 pmAUS Austin Bergstrom-STL Lambert-St Louis

7h 17m1 stop Atlanta Hartsfield-Jackson

$227Delta

Recent last minute flight deals from Illinois to Austin

Thu, Aug 20 - Mon, Aug 31

2:41 pm - 11:41 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

9h 00m1 stop Denver Intl

10:55 am - 11:08 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

12h 13m1 stop Orlando

$261Frontier

Wed, Aug 19 - Sat, Aug 22

2:41 pm - 7:30 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

28h 49m1 stop Denver Intl

6:15 am - 1:36 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

7h 21m1 stop Denver Intl

$264Frontier

Sat, Aug 22 - Sat, Sep 5

7:15 pm - 9:59 pmORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 44mnonstop

6:27 am - 9:30 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

3h 03mnonstop

$322American Airlines

Thu, Aug 20 - Sat, Oct 31

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

4h 01m1 stop Dallas/Fort Worth

12:54 pm - 5:02 pmAUS Austin Bergstrom-STL Lambert-St Louis

4h 08m1 stop Dallas/Fort Worth

$329American Airlines

Thu, Aug 20 - Mon, Aug 31

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

2h 55mnonstop

6:27 am - 9:22 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 55mnonstop

$342United Airlines

Sat, Aug 22 - Sat, Sep 5

6:11 am - 1:51 pmMDW Chicago Midway-AUS Austin Bergstrom

7h 40m1 stop Atlanta Hartsfield-Jackson

3:00 pm - 10:36 pmAUS Austin Bergstrom-MDW Chicago Midway

7h 36m1 stop Atlanta Hartsfield-Jackson

$342Delta

Thu, Aug 20 - Mon, Aug 31

5:35 pm - 8:05 pmMDW Chicago Midway-AUS Austin Bergstrom

2h 30mnonstop

8:50 pm - 11:20 pmAUS Austin Bergstrom-MDW Chicago Midway

2h 30mnonstop

$342Southwest

Sat, Aug 22 - Sat, Sep 5

6:11 am - 1:51 pmMDW Chicago Midway-AUS Austin Bergstrom

7h 40m1 stop Atlanta Hartsfield-Jackson

3:00 pm - 10:36 pmAUS Austin Bergstrom-MDW Chicago Midway

7h 36m1 stop Atlanta Hartsfield-Jackson

$347Delta

Thu, Aug 20 - Mon, Aug 31

10:05 am - 12:40 pmMDW Chicago Midway-AUS Austin Bergstrom

2h 35mnonstop

2:50 pm - 7:10 pmAUS Austin Bergstrom-MDW Chicago Midway

4h 20m1 stop Cincinnati Cinci./N. Kentucky

$348Southwest

Thu, Aug 20 - Mon, Aug 31

8:51 am - 11:49 amORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 58mnonstop

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

5h 22m1 stop Houston George Bush Intcntl

$352United Airlines

Recent direct flight deals from Illinois to Austin

Tue, Oct 27 - Tue, Oct 27

8:30 am - 10:35 amSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

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

2h 05mnonstop

$180Southwest

Thu, Dec 10 - Sat, Dec 12

8:25 pm - 10:30 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 05mnonstop

2:15 pm - 4:20 pmAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$192Southwest

Thu, Sep 17 - Mon, Sep 21

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

2h 05mnonstop

7:25 am - 9:30 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$192Southwest

Thu, Sep 24 - Fri, Sep 25

12:00 pm - 2:00 pmSTL Lambert-St Louis-AUS Austin Bergstrom

2h 00mnonstop

7:25 am - 9:30 amAUS Austin Bergstrom-STL Lambert-St Louis

2h 05mnonstop

$215Southwest

Sat, Oct 24 - Mon, Oct 26

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

3h 00mnonstop

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

2h 56mnonstop

$245American Airlines

Sun, Sep 13 - Sat, Sep 19

8:05 am - 10:50 amORD Chicago O'Hare Intl-AUS Austin Bergstrom

2h 45mnonstop

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

3h 11mnonstop

$247American Airlines

Wed, Sep 23 - Sun, Sep 27

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

2h 46mnonstop

8:00 am - 10:58 amAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 58mnonstop

$247American Airlines

Wed, Oct 21 - Sun, Oct 25

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

2h 54mnonstop

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

2h 56mnonstop

$247American Airlines

Tue, Sep 29 - Sat, Oct 3

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

2h 58mnonstop

12:43 pm - 3:38 pmAUS Austin Bergstrom-ORD Chicago O'Hare Intl

2h 55mnonstop

$253United Airlines

Wed, Feb 10 - Sat, Feb 13

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

3h 00mnonstop

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

2h 41mnonstop

$253United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$62

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly and prices are also 10% 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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Information on the airport you'll fly into in Austin

Austin (AUS)

AUS

$62 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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Flights from domestic origins to Austin

Choose which airport to fly into in Austin

Find deals for your return flight