$375 Cheap Flights from Baton Rouge (BTR) to Champaign (CMI)

View $375 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Baton Rouge Metropolitan Airport (BTR) to Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard)

Cheap Flights from Baton Rouge to Champaign (BTR-CMI)

Prices were available within the past 7 days and start at $375 for one-way flights and $380 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 8 - Tue, Oct 14
BTR
Baton Rouge
CMI
Champaign
$380 Roundtrip, found 2 days ago
$380
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 8 from Baton Rouge to Champaign, returning Tue, Oct 14, priced at $380 found 2 days ago
American Airlines
Sat, Aug 30 - Tue, Sep 2
BTR
Baton Rouge
CMI
Champaign
$390 Roundtrip, found 18 hours ago
$390
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Tue, Sep 2, priced at $390 found 18 hours ago
American Airlines
Thu, Oct 9 - Tue, Oct 14
BTR
Baton Rouge
CMI
Champaign
$411 Roundtrip, found 1 day ago
$411
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 9 from Baton Rouge to Champaign, returning Tue, Oct 14, priced at $411 found 1 day ago
American Airlines
Sat, Aug 30 - Mon, Sep 1
BTR
Baton Rouge
CMI
Champaign
$439 Roundtrip, found 23 hours ago
$439
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Mon, Sep 1, priced at $439 found 23 hours ago
American Airlines
Sat, Aug 30 - Sun, Aug 31
BTR
Baton Rouge
CMI
Champaign
$450 Roundtrip, found 18 hours ago
$450
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Sun, Aug 31, priced at $450 found 18 hours ago
American Airlines
Sat, Aug 30 - Sun, Aug 31
BTR
Baton Rouge
CMI
Champaign
$456 Roundtrip, found 18 hours ago
$456
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Sun, Aug 31, priced at $456 found 18 hours ago
American Airlines
Sat, Aug 30 - Wed, Sep 3
BTR
Baton Rouge
CMI
Champaign
$460 Roundtrip, found 18 hours ago
$460
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Wed, Sep 3, priced at $460 found 18 hours ago
American Airlines
Sat, Aug 30 - Wed, Sep 3
BTR
Baton Rouge
CMI
Champaign
$466 Roundtrip, found 18 hours ago
$466
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Baton Rouge to Champaign, returning Wed, Sep 3, priced at $466 found 18 hours ago
American Airlines
Tue, Sep 2 - Tue, Sep 16
BTR
Baton Rouge
CMI
Champaign
$470 Roundtrip, found 21 hours ago
$470
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Tue, Sep 2 from Baton Rouge to Champaign, returning Tue, Sep 16, priced at $470 found 21 hours ago
American Airlines
Sat, Sep 27 - Thu, Oct 2
BTR
Baton Rouge
CMI
Champaign
$481 Roundtrip, found 1 day ago
$481
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 27 from Baton Rouge to Champaign, returning Thu, Oct 2, priced at $481 found 1 day ago

Alternative airports near Champaign

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

Select flight to University Of Illinois Urbana-Champaign Williard CMI. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $460
CMI
University Of Illinois Urbana-Champaign Williard
CheapestClosest
Average driving time to city center11 min
Flights from $460
Flights from Baton Rouge (BTR) to Champaign (CMI)
Origin airport
Baton Rouge Metropolitan
Destination airport
University Of Illinois Urbana-Champaign Williard
Airlines serving
American Airlines
Roundtrip price
$380
Distance
676 mi

Baton Rouge to Champaign Flights

The cheapest times to fly from Baton Rouge to Champaign

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 Baton Rouge to Champaign are during the month of October. You can find some of the cheapest flights from Baton Rouge to Champaign with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baton Rouge to Champaign

Sunday is one of the best days to book for cheap flights from Baton Rouge to Champaign: 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 Baton Rouge to Champaign

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 Baton Rouge to Champaign in 2025. You can also book with separate airlines for your outbound and return journeys, from $375 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 Baton Rouge to Champaign 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 Baton Rouge to Champaign 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.

 

Frequently asked questions

How much does a flight from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) cost?
Secure a cheap one-way flight from $375 or cheap return flight from $380 from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
October is the least expensive month to fly from BTR to CMI. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
To find the cheapest airline that'll fly you from BTR to CMI, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
There aren't any daily nonstop flights departing from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BTR to CMI?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
To arrive at University Of Illinois Urbana-Champaign Williard Airport (CMI) without delays, pick a flight that leaves from Baton Rouge Metropolitan Airport (BTR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI) last-minute?
Waiting until just before your departure to book a ticket from BTR to CMI often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a BTR to CMI flight and hotel package?
Securing a BTR to CMI flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our wide range of stays and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baton Rouge Metropolitan Airport (BTR) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
If you booked your BTR to CMI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, 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 further details.

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*Available to One Key members.