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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$69 CHEAP FLIGHTS from Illinois to Austin

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Flight Deals

Cheap Flights from Illinois to Austin

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Austin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Wed, Oct 15 - Wed, Oct 22

12:45 pm - 2:50 pmSTL-AUS

2h 05mnonstop

6:00 am - 8:05 amAUS-STL

2h 05mnonstop

$137Southwest

Find Deal

Sat, Oct 11 - Mon, Nov 3

7:43 pm - 10:29 amORD-AUS

14h 46m1 stop

11:15 am - 2:04 pmAUS-ORD

2h 49mnonstop

$142Frontier

Find Deal

Fri, Oct 3 - Tue, Oct 7

5:10 am - 4:34 pmORD-AUS

11h 24m1 stop

7:20 am - 6:38 pmAUS-ORD

11h 18m1 stop

$147Multiple Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 22

11:10 am - 2:03 pmORD-AUS

2h 53mnonstop

12:48 pm - 3:43 pmAUS-ORD

2h 55mnonstop

$151United Airlines

Find Deal

Thu, Oct 9 - Mon, Oct 13

5:00 am - 10:08 amSTL-AUS

5h 08m1 stop

4:18 pm - 10:00 pmAUS-STL

5h 42m1 stop

$151United Airlines

Find Deal

Mon, Nov 10 - Tue, Nov 18

8:26 am - 4:02 pmORD-AUS

7h 36m1 stop

5:45 am - 6:23 pmAUS-ORD

12h 38m1 stop

$155Multiple Airlines

Find Deal

Thu, Jan 29 - Mon, Feb 2

11:58 am - 3:50 pmSTL-AUS

3h 52m1 stop

3:46 pm - 11:32 pmAUS-STL

7h 46m1 stop

$159American Airlines

Find Deal

Fri, Oct 10 - Tue, Oct 14

7:43 pm - 9:45 pmORD-AUS

26h 02m1 stop

7:20 am - 11:45 pmAUS-ORD

16h 25m1 stop

$164Spirit Airlines

Find Deal

Sat, Dec 13 - Mon, Dec 15

10:00 am - 1:00 pmORD-AUS

3h 00mnonstop

6:05 am - 8:53 amAUS-ORD

2h 48mnonstop

$169American Airlines

Find Deal

Sun, Oct 12 - Wed, Oct 29

5:05 am - 3:24 pmORD-AUS

10h 19m1 stop

7:20 am - 6:38 pmAUS-ORD

11h 18m1 stop

$191Spirit Airlines

Find Deal

Cheapest round-trip

$137

Overall average: $360

Southwest

Wed 10/15Wed 10/22

STL - AUS • Non-stop

Cheapest one-way

$69

Typical prices: $155-365

Southwest

Tue 10/21

STL - AUS • Non-stop

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Austin!

Useful Info

Low season	August
High season	October
Cheapest flight	$69

Best time to beat the crowds with an average 22% drop in price.

Most popular time to fly with an average 1% 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.

Fredericksburg

Georgetown

Cedar Park

Dripping Springs

Seguin

Bastrop

Canyon Lake

Horseshoe Bay

Buda

Flatonia

Everything you need to know for your flight to Austin

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Austin

Austin (AUS)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

AUS

$69 Find Cheap Flights from Illinois to Austin

KAYAK searches hundreds of travel sites at once for deals on flights to Austin

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

Everything you should know

Good to know

FAQs for booking flights from Illinois 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.

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

Flights to other popular destinations

Flights from domestic origins to Austin

Choose which airport to fly into in Austin

Find deals for your return flight