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$65+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — AUS
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Illinois to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$128
(CheapOair)

One-way from

$65
(CheapOair)
From Illinois to Austin Bergstrom
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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 December 18, 2024.

This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:55 amORD - AUS
1 stop14h 45mFrontier
Mon 1/63:58 pmAUS - ORD
1 stop6h 14mFrontier
Deal found 12/17$274
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Mon 12/308:41 pmMDW - AUS
1 stop20h 06mFrontier
Mon 1/63:58 pmAUS - MDW
1 stop7h 16mFrontier
Deal found 12/16$278
This CheapOair deal was found by Cheapflights users on 12/18. 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.
Mon 12/306:49 pmSTL - AUS
1 stop26h 51mFrontier
Fri 1/35:19 pmAUS - STL
1 stop14h 54mFrontier
Deal found 12/18$298
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/303:31 pmORD - AUS
1 stop9h 02mMultiple Airlines
Mon 1/65:19 pmAUS - ORD
1 stop6h 27mMultiple Airlines
Deal found 12/16$321
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/248:10 pmORD - AUS
Nonstop3h 02mUnited Airlines
Wed 12/257:00 amAUS - ORD
Nonstop2h 48mUnited Airlines
Deal found 12/17$337
This Delta deal was found by Cheapflights users on 12/18. 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 12/315:17 pmSTL - AUS
1 stop7h 18mDelta
Tue 1/712:47 pmAUS - STL
1 stop5h 58mDelta
Deal found 12/18$337
This Southwest deal was found by Cheapflights users on 12/18. 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.
Tue 12/312:05 pmSTL - AUS
1 stop5h 35mSouthwest
Tue 1/73:15 pmAUS - STL
Nonstop2h 00mSouthwest
Deal found 12/18$338
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Wed 12/255:00 amORD - AUS
1 stop5h 13mAmerican Airlines
Tue 12/314:56 pmAUS - ORD
Nonstop2h 49mAmerican Airlines
Deal found 12/18$347
This Delta deal was found by Cheapflights users on 12/17. 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 12/244:50 pmMDW - AUS
1 stop6h 02mDelta
Tue 1/76:20 amAUS - MDW
1 stop6h 26mDelta
Deal found 12/17$350
This Delta deal was found by Cheapflights users on 12/18. 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.
Wed 12/2510:30 amORD - AUS
1 stop7h 48mDelta
Wed 1/85:30 amAUS - ORD
1 stop7h 25mDelta
Deal found 12/18$350
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/226:16 amPIA - AUS
1 stop5h 16mAmerican Airlines
Thu 12/262:37 pmAUS - PIA
1 stop6h 49mAmerican Airlines
Deal found 12/17$359
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/256:01 amCMI - AUS
1 stop5h 06mAmerican Airlines
Tue 12/313:30 pmAUS - CMI
1 stop5h 11mAmerican Airlines
Deal found 12/16$365

Find flights from Illinois to Austin within your budget

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Thu 1/9

8:34 pm-8:54 pm

1 stop24h 20m

Austin Bergstrom

Sun 1/12

8:24 pm-9:06 am

1 stop12h 42m

$128

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/14

1:40 pm-7:57 pm

1 stop6h 17m

Austin Bergstrom

Thu 1/16

6:02 pm-11:46 pm

1 stop5h 44m

$178

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Fri 1/24

8:31 pm-3:05 pm

1 stop18h 34m

Austin Bergstrom

Mon 1/27

8:26 pm-2:43 pm

1 stop18h 17m

$206

MolineAustin

MLI - AUS

MLIAUS

Moline Quad-City

Wed 1/8

3:59 pm-11:06 pm

1 stop7h 07m

Austin Bergstrom

Tue 1/14

2:22 pm-9:09 pm

1 stop6h 47m

$248

PeoriaAustin

PIA - AUS

PIAAUS

Greater Peoria

Wed 1/8

3:33 pm-10:33 pm

1 stop7h 00m

Austin Bergstrom

Sat 1/11

9:45 am-2:58 pm

1 stop5h 13m

$248

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/14

11:05 am-1:20 pm

Nonstop2h 15m

Austin Bergstrom

Thu 1/16

6:40 am-8:40 am

Nonstop2h 00m

$255

St. LouisAustin

STL - AUS

STLAUS

Lambert-St Louis

Tue 1/7

12:00 pm-8:23 pm

1 stop8h 23m

Austin Bergstrom

Tue 1/14

12:47 pm-6:45 pm

1 stop5h 58m

$266

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Thu 1/9

12:37 pm-7:31 pm

3 stops30h 54m

Austin Bergstrom

Mon 1/13

7:14 pm-5:31 am

1 stop10h 17m

$268

ChicagoAustin

MDW - AUS

MDWAUS

Chicago Midway

Mon 1/6

8:25 am-3:08 pm

1 stop6h 43m

Austin Bergstrom

Wed 1/8

4:14 pm-12:13 am

1 stop7h 59m

$268

ChicagoAustin

ORD - AUS

ORDAUS

Chicago O'Hare Intl

Mon 1/20

8:30 am-7:31 pm

1 stop11h 01m

Austin Bergstrom

Wed 1/22

4:14 pm-2:02 pm

1 stop21h 48m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 55 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.

Travel insights for flights from Illinois to Austin

Get recent, data-driven insights about flights from Illinois to Austin including ideal travel times, pricing trends, and more.

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 December 18, 2024.

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.

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 December 18, 2024.
To help decide which airline to fly from Illinois to Austin, see what other customers have to say about American Airlines, Frontier and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

JetBlue
7.4
Good
3,279 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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?

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $114 and $124, 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%), Emirates (100%), Envoy Air (97%).

  • What are the cheapest flights from Illinois to Austin?

    Looking for the cheapest flight from Illinois to Austin? While on average our users pay $331, our data indicates the cheapest price to be $146. The most popular route (Chicago O'Hare Intl - Austin Bergstrom), is priced around $123.

  • 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.

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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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$196FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$150Average$245FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$173Average$389FlexibilityNo cancel feeOn-time71%
DeltaCheapest$195Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$205Average$369FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$206Average$422FlexibilityNo cancel feeOn-time69%
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