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>

$63 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

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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

$102

Overall average: $380

Frontier

Sun 2/1Mon 2/9

ORD - AUS • Non-stop

Cheapest one-way

$63

Typical prices: $151-$379

Frontier

Mon 1/12

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

Sun, Feb 1 - Mon, Feb 9

7:00 am - 10:04 amORD-AUS

3h 04mnonstop

11:59 am - 2:45 pmAUS-ORD

2h 46mnonstop

$102Frontier

Find Deal

Wed, Jan 14 - Sun, Jan 18

7:29 am - 8:53 pmORD-AUS

13h 24m1 stop

8:30 pm - 11:16 pmAUS-ORD

2h 46mnonstop

$103Multiple Airlines

Find Deal

Fri, Feb 6 - Mon, Feb 9

8:25 am - 11:29 amORD-AUS

3h 04mnonstop

11:59 am - 2:45 pmAUS-ORD

2h 46mnonstop

$104Frontier

Find Deal

Sat, Jan 10 - Fri, Jan 16

7:29 am - 8:53 pmORD-AUS

13h 24m1 stop

8:30 pm - 11:16 pmAUS-ORD

2h 46mnonstop

$112Multiple Airlines

Find Deal

Sun, Jan 18 - Sat, Jan 24

6:00 am - 1:43 pmMLI-AUS

7h 43m1 stop

3:42 pm - 10:23 pmAUS-MLI

6h 41m1 stop

$192American Airlines

Find Deal

Sat, Jan 10 - Sat, Jan 17

11:28 am - 7:08 pmMLI-AUS

7h 40m2 stops

5:44 pm - 9:58 pmAUS-MLI

4h 14m1 stop

$196American Airlines

Find Deal

Wed, Jan 7 - Tue, Jan 20

5:11 pm - 12:20 amMLI-AUS

7h 09m1 stop

10:51 am - 4:26 pmAUS-MLI

5h 35m1 stop

$217Delta

Find Deal

Mon, Jan 12 - Sat, Jan 17

5:11 pm - 12:20 amMLI-AUS

7h 09m1 stop

10:58 am - 4:26 pmAUS-MLI

5h 28m1 stop

$233Delta

Find Deal

Wed, Dec 10 - Sat, Dec 13

6:45 am - 12:04 pmPIA-AUS

5h 19m1 stop

7:00 am - 11:59 amAUS-PIA

4h 59m1 stop

$279United Airlines

Find Deal

Wed, Dec 10 - Sat, Dec 13

1:15 pm - 10:59 pmPIA-AUS

9h 44m2 stops

3:53 pm - 9:31 pmAUS-PIA

5h 38m1 stop

$284United Airlines

Find Deal

Useful Info

Low season	August
High season	December
Cheapest flight	$63

Best time to beat the crowds with an average 19% drop in price.

Most popular time to fly with an average 13% 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

$63 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