$243 Cheap Flights from Champaign (CMI) to Austin (AUS)

View $243 flight on Fri, Oct 31, 2025Opens in a new window

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Austin-Bergstrom Intl. Airport (AUS)

Cheap Flights from Champaign to Austin (CMI-AUS)

Prices were available within the past 7 days and start at $243 for one-way flights and $346 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Nov 6 - Sat, Nov 8
CMI
Champaign
AUS
Austin
$346 Roundtrip, found 6 days ago
$346
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Nov 6 from Champaign to Austin, returning Sat, Nov 8, priced at $346 found 6 days ago
American Airlines
Thu, Jan 15 - Sat, Jan 17
CMI
Champaign
AUS
Austin
$352 Roundtrip, found 5 days ago
$352
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 15 from Champaign to Austin, returning Sat, Jan 17, priced at $352 found 5 days ago
American Airlines
Sun, Feb 22 - Sat, Feb 28
CMI
Champaign
AUS
Austin
$366 Roundtrip, found 5 days ago
$366
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Feb 22 from Champaign to Austin, returning Sat, Feb 28, priced at $366 found 5 days ago
American Airlines
Thu, Nov 13 - Sun, Nov 16
CMI
Champaign
AUS
Austin
$372 Roundtrip, found 16 hours ago
$372
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Thu, Nov 13 from Champaign to Austin, returning Sun, Nov 16, priced at $372 found 16 hours ago
American Airlines
Thu, Jan 15 - Sat, Jan 17
CMI
Champaign
AUS
Austin
$382 Roundtrip, found 5 days ago
$382
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 15 from Champaign to Austin, returning Sat, Jan 17, priced at $382 found 5 days ago
American Airlines
Sun, Feb 22 - Sat, Feb 28
CMI
Champaign
AUS
Austin
$396 Roundtrip, found 5 days ago
$396
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Feb 22 from Champaign to Austin, returning Sat, Feb 28, priced at $396 found 5 days ago
American Airlines
Thu, Nov 13 - Sun, Nov 16
CMI
Champaign
AUS
Austin
$402 Roundtrip, found 16 hours ago
$402
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Thu, Nov 13 from Champaign to Austin, returning Sun, Nov 16, priced at $402 found 16 hours ago
American Airlines
Sun, Feb 22 - Sat, Feb 28
CMI
Champaign
AUS
Austin
$416 Roundtrip, found 5 days ago
$416
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Feb 22 from Champaign to Austin, returning Sat, Feb 28, priced at $416 found 5 days ago
American Airlines
Tue, Feb 24 - Mon, Mar 2
CMI
Champaign
AUS
Austin
$422 Roundtrip, found 5 days ago
$422
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Feb 24 from Champaign to Austin, returning Mon, Mar 2, priced at $422 found 5 days ago
American Airlines
Thu, Jan 15 - Sat, Jan 17
CMI
Champaign
AUS
Austin
$426 Roundtrip, found 5 days ago
$426
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 15 from Champaign to Austin, returning Sat, Jan 17, priced at $426 found 5 days ago

Alternative airports near Austin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Austin-Bergstrom Intl. AUS. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $491
AUS
Austin-Bergstrom Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $491

Frequently asked questions

How much does a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS) cost?
Secure a cheap one-way flight from $243 or cheap return flight from $346 from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS)?
November is the least expensive month to fly from CMI to AUS. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS)?
To find the cheapest airline that'll fly you from CMI to AUS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS)?
Direct flights from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CMI to AUS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS)?
Book a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Waiting until just before your departure to book a ticket from CMI to AUS often results in higher prices. While you might find some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of snagging a bargain.
Is it cheaper to book a CMI to AUS flight and hotel package?
Compared with arranging hotels and flights separately, booking a CMI to AUS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Just secure your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Austin-Bergstrom Intl. Airport (AUS)?
If you reserved your CMI to AUS flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Travel information

Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
Austin-Bergstrom Intl.
Airlines serving
American Airlines
Roundtrip price
$346
Distance
861 mi

Book with confidence

Book with confidence

Champaign to Austin Flights

The cheapest times to fly from Champaign to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Champaign to Austin are during the month of November. You can find some of the cheapest flights from Champaign to Austin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Champaign to Austin

Sunday is one of the best days to book for cheap flights from Champaign to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Champaign to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Champaign to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $243 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Champaign to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Champaign to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Champaign to Austin Flights

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Explore a world of travel with Expedia

*Available to One Key members.