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>

$56 CHEAP FLIGHTS from Illinois to Austin

AUS

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$87

Overall average: $332

Frontier

Thu 1/8Sun 1/11

ORD - AUS • Non-stop

Cheapest one-way

$56

Typical prices: $161-$358

Frontier

Sat 2/7

STL - AUS • 1 stop

Start a new search

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

We hope you love your trip to Austin!

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

Thu, Jan 8 - Sun, Jan 11

4:02 pm - 7:01 pm

ORD

AUS

2h 59mnonstop

7:51 pm - 10:41 pm

AUS

ORD

2h 50mnonstop

$87Frontier

Fri, Feb 6 - Sun, Feb 8

8:25 am - 11:29 am

ORD

AUS

3h 04mnonstop

11:09 am - 1:55 pm

AUS

ORD

2h 46mnonstop

$88Frontier

Fri, Feb 6 - Mon, Feb 9

8:25 am - 11:29 am

ORD

AUS

3h 04mnonstop

11:59 am - 2:45 pm

AUS

ORD

2h 46mnonstop

$102Frontier

Sun, Jan 18 - Sat, Jan 24

4:31 pm - 7:35 pm

ORD

AUS

3h 04mnonstop

11:30 am - 9:03 pm

AUS

ORD

9h 33m1 stop

$107Multiple Airlines

Mon, Jan 12 - Wed, Jan 21

8:50 am - 4:04 pm

STL

AUS

7h 14m1 stop

7:25 am - 11:33 pm

AUS

STL

16h 08m2 stops

$158Multiple Airlines

Sat, Jan 10 - Wed, Jan 14

8:25 am - 11:25 am

MDW

AUS

3h 00mnonstop

10:45 am - 1:10 pm

AUS

MDW

2h 25mnonstop

$179Southwest

Mon, Jan 5 - Wed, Jan 14

2:35 pm - 10:28 pm

MLI

AUS

7h 53m1 stop

4:59 pm - 9:58 pm

AUS

MLI

4h 59m1 stop

$220American Airlines

Fri, Jan 9 - Mon, Jan 12

10:47 am - 3:46 pm

MLI

AUS

4h 59m1 stop

3:35 pm - 9:36 pm

AUS

MLI

6h 01m1 stop

$249United Airlines

Mon, Jan 5 - Mon, Jan 12

5:19 pm - 10:47 pm

PIA

AUS

5h 28m1 stop

3:35 pm - 9:39 pm

AUS

PIA

6h 04m1 stop

$249United Airlines

Tue, Jan 13 - Tue, Jan 20

3:25 pm - 11:00 pm

SPI

AUS

7h 35m1 stop

7:10 am - 2:55 pm

AUS

SPI

7h 45m1 stop

$289American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$56

Best time to beat the crowds with an average 17% drop in price.

Most popular time to fly with an average 20% 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)

AUS

$57 Find Cheap Flights from Illinois to Austin

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

Everything you should know

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

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