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$87+ Cheap flights from Illinois to Austin (AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — AUS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Illinois to Austin

Keep the following information in mind while searching for Illinois to Austin flight deals. Data was last updated April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$161
(Cheapflightsfares)

One-way from

$87
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$287

Good round-trip deal

$215 or less

Good one-way deal

$114 or less
Provider with most accurate pricing for Chicago (CHI)-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Austin Bergstrom flights.
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From Illinois to Austin Bergstrom
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One-way flight from Illinois to Austin Bergstrom
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Highest demand for flights based on searches. 7% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Illinois to Austin Bergstrom.
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Price to beat on a one-way flight from Illinois to Austin Bergstrom.
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Find flight deals from Illinois to Austin

Cheapest flights from Illinois to Austin
Explore the most affordable flight options available from Illinois to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Priceline deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:41 pmORD - AUS
1 stop10h 22mSpirit Airlines
Fri 5/168:11 pmAUS - ORD
1 stop9h 14mSpirit Airlines
Deal found 4/29$164
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/237:15 amORD - AUS
Nonstop2h 52mMultiple Airlines
Tue 6/34:31 pmAUS - ORD
1 stop19h 05mMultiple Airlines
Deal found 4/29$167
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/288:25 amMDW - AUS
Nonstop2h 45mSouthwest
Wed 6/46:25 amAUS - MDW
Nonstop2h 30mSouthwest
Deal found 4/28$169
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:35 pmORD - AUS
Nonstop3h 07mAmerican Airlines
Wed 6/46:37 pmAUS - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/29$170
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/277:50 pmORD - AUS
Nonstop2h 52mUnited Airlines
Tue 6/35:18 pmAUS - ORD
Nonstop2h 54mUnited Airlines
Deal found 4/29$179
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/154:57 pmORD - AUS
Nonstop2h 49mFrontier
Thu 6/197:11 pmAUS - ORD
Nonstop2h 45mFrontier
Deal found 4/29$186
This CheapOair deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/312:44 pmMDW - AUS
1 stop8h 56mFrontier
Tue 6/37:00 amAUS - MDW
1 stop13h 53mFrontier
Deal found 4/27$201
This Gotogate deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:15 pmSTL - AUS
1 stop15h 50mFrontier
Mon 5/1210:32 amAUS - STL
1 stop13h 34mFrontier
Deal found 4/29$207
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2711:32 amSTL - AUS
1 stop5h 41mDelta
Thu 5/296:40 amAUS - STL
1 stop8h 20mDelta
Deal found 4/28$209
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:20 amMDW - AUS
1 stop7h 53mDelta
Wed 6/46:45 amAUS - MDW
1 stop5h 08mDelta
Deal found 4/28$217
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:43 pmORD - AUS
1 stop5h 46mDelta
Sat 6/710:40 amAUS - ORD
1 stop6h 07mDelta
Deal found 4/29$217
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:19 amSTL - AUS
1 stop4h 19mAmerican Airlines
Thu 5/293:28 pmAUS - STL
1 stop5h 58mAmerican Airlines
Deal found 4/29$221

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from Illinois to Austin that are best for you.

Fly from

Illinois

Fly to

Austin

Route

Depart

Return

Price

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Tue 5/13

12:41 pm-11:03 pm

1 stop10h 22m

Austin Bergstrom

Fri 5/16

8:11 pm-5:25 am

1 stop9h 14m

$164

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Fri 5/23

7:15 am-10:07 am

Nonstop2h 52m

Austin Bergstrom

Wed 6/4

8:11 pm-5:25 am

1 stop9h 14m

$167

ChicagoAustin

MDW - AUS

MDWAUS

Chicago Midway

Wed 5/28

8:25 am-11:10 am

Nonstop2h 45m

Austin Bergstrom

Wed 6/4

6:25 am-8:55 am

Nonstop2h 30m

$169

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Tue 6/3

8:35 pm-11:42 pm

Nonstop3h 07m

Austin Bergstrom

Wed 6/4

6:37 pm-9:24 pm

Nonstop2h 47m

$170

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Tue 5/27

7:50 pm-10:42 pm

Nonstop2h 52m

Austin Bergstrom

Tue 6/3

5:18 pm-8:12 pm

Nonstop2h 54m

$179

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Sun 6/15

4:57 pm-7:46 pm

Nonstop2h 49m

Austin Bergstrom

Thu 6/19

7:11 pm-9:56 pm

Nonstop2h 45m

$186

ChicagoAustin

MDW - AUS

MDWAUS

Chicago Midway

Sat 5/31

2:44 pm-11:40 pm

1 stop8h 56m

Austin Bergstrom

Tue 6/3

7:00 am-8:53 pm

1 stop13h 53m

$201

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Fri 5/9

6:53 pm-11:20 pm

1 stop28h 27m

Austin Bergstrom

Mon 5/12

10:32 am-12:06 am

1 stop13h 34m

$208

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 5/27

5:20 pm-7:25 pm

Nonstop2h 05m

Austin Bergstrom

Tue 6/3

2:10 pm-8:10 pm

1 stop6h 00m

$209

ChicagoAustin

MDW - AUS

MDWAUS

Chicago Midway

Tue 6/3

1:08 pm-6:40 pm

1 stop5h 32m

Austin Bergstrom

Wed 6/4

6:45 am-11:53 am

1 stop5h 08m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Austin

What is the cheapest month to book a flight from Illinois to Austin?

Currently, January is the cheapest month in which you can book a flight from Illinois to Austin (average of $286). Flying from Illinois to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to AUS?

Find hourly flight availability from Illinois to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Illinois to Austin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Austin

Explore weekly flight availability from Illinois to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 29, 2025.

The most flights from USIL to AUS are scheduled on a Tuesday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated April 29, 2025.
To help decide which airline to fly from Illinois to Austin, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Austin from Illinois?

    Austin Bergstrom (AUS) is the airport you will fly into if you book a flight from Illinois to Austin. It is only a 7.5 mi journey from Austin Bergstrom (AUS) to Austin’s city center.

  • What are the cheapest airlines to fly from Illinois to Austin one-way?

    $87 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $90 and $90, respectively.

  • What are the most popular routes from Illinois to Austin?

    While some choose either Chicago Midway - Austin Bergstrom or Lambert-St Louis - Austin Bergstrom, Chicago O'Hare Intl - Austin Bergstrom is the most popular route from Illinois to Austin.

  • What are the most reliable airlines from Illinois to Austin?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Austin on time: SkyWest Airlines (100%), United Airlines (90%), Lufthansa (89%).

  • What are the cheapest flights from Illinois to Austin?

    Looking for the cheapest flight from Illinois to Austin? While on average our users pay $309, our data indicates the cheapest price to be $79. The most popular route (Chicago O'Hare Intl - Austin Bergstrom), is priced around $115.

  • Can I find deals for flights from Illinois to Austin that include hotel bookings?

    Yes. In addition to deals on Illinois to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Austin.

  • Can I find deals for business class flights from Illinois to Austin?

    Yes. Cheapflights offers flight deals from Illinois to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Austin?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Austin (average of $286). Flying from Illinois to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Round Rock
Dripping Springs
Cedar Park
Pflugerville
Bastrop
Canyon Lake
Seguin
Horseshoe Bay

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Alternative routes for Illinois to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Austin

Discover the top 6 airlines that operate flights from Illinois to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$201FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$129Average$275FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$177Average$355FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$189Average$389FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$210Average$389FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$281FlexibilityNo cancel feeOn-timeN/A

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