AUS

$79 Find Cheap Flights from Illinois to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Austin departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

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

Save 21% 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.

Flight Deals
Useful Info
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.

Recent round-trip flight deals from Illinois to Austin

Wed, Sep 9 - Wed, Sep 16
Southwest Logo
8:50 pm - 10:50 pm
STL
-
AUS
2h 00mnonstop
Southwest Logo
12:55 pm - 4:25 pm
AUS
-
STL
3h 30m
1 stop
$173Southwest
Wed, Sep 9 - Wed, Sep 16
Southwest Logo
8:50 pm - 10:50 pm
STL
-
AUS
2h 00mnonstop
Southwest Logo
7:30 am - 9:35 am
AUS
-
STL
2h 05mnonstop
$174Southwest
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
10:14 am - 2:21 pm
STL
-
AUS
4h 07m
1 stop
American Airlines Logo
11:38 am - 6:04 pm
AUS
-
STL
6h 26m
1 stop
$181American Airlines
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
6:33 pm - 9:48 am
STL
-
AUS
15h 15m
1 stop
Frontier Logo
10:50 am - 9:40 am
AUS
-
STL
22h 50m
1 stop
$184Frontier
Tue, Sep 8 - Wed, Sep 16
Frontier Logo
6:33 pm - 9:48 am
STL
-
AUS
15h 15m
1 stop
Frontier Logo
10:50 am - 9:40 am
AUS
-
STL
22h 50m
1 stop
$195Frontier
Sat, Sep 12 - Wed, Sep 16
American Airlines Logo
3:34 pm - 9:36 pm
STL
-
AUS
6h 02m
1 stop
American Airlines Logo
2:08 pm - 6:04 pm
AUS
-
STL
3h 56m
1 stop
$197American Airlines
Wed, Sep 2 - Wed, Sep 9
United Airlines Logo
4:11 pm - 9:07 pm
ORD
-
AUS
4h 56m
1 stop
United Airlines Logo
1:04 pm - 3:59 pm
AUS
-
ORD
2h 55mnonstop
$247United Airlines
Wed, Aug 12 - Mon, Aug 17
United Airlines Logo
7:00 am - 9:58 am
ORD
-
AUS
2h 58mnonstop
United Airlines Logo
9:00 am - 11:55 am
AUS
-
ORD
2h 55mnonstop
$253United Airlines
Wed, Jul 8 - Tue, Jul 21
Delta Logo
6:35 am - 1:54 pm
ORD
-
AUS
7h 19m
1 stop
Delta Logo
1:31 pm - 8:33 pm
AUS
-
ORD
7h 02m
1 stop
$257Delta
Mon, Jun 29 - Sat, Jul 4
Delta Logo
4:19 pm - 12:25 am
BMI
-
AUS
8h 06m
1 stop
Delta Logo
2:44 pm - 9:37 pm
AUS
-
BMI
6h 53m
1 stop
$324Delta
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$79
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from St. Louis to Austin

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?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Georgetown
Cedar Park
Dripping Springs
Bastrop
Seguin
Buda
Canyon Lake
Horseshoe Bay
Flatonia

Everything you need to know for your flight to Austin

Information on the airport you'll fly into in Austin

Austin (AUS)