$125 Find Cheap Flights from Baton Rouge to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baton Rouge to Illinois departing on 12/24. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baton Rouge to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baton Rouge to Illinois, as well as popular online travel agencies
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Cheap Flights from Baton Rouge to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$249
Moline
Moline1 stop$249
Peoria
Peoria2 stops$408
Springfield
Springfield2 stops$571
St. Louis
St. Louis1 stop$249
Chicago
Chicago1 stop$249
Moline
Moline1 stop$249
Peoria
Peoria2 stops$408
Springfield
Springfield2 stops$571
St. Louis
St. Louis1 stop$249

Book Cheap Baton Rouge to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baton Rouge to Illinois 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 Baton Rouge to Illinois

Sat, Dec 27 - Sat, Jan 3
Delta Logo
6:59 pm - 12:02 amBTR-ORD
5h 03m1 stop
Delta Logo
5:29 pm - 9:53 pmORD-BTR
4h 24m1 stop
$249Delta
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Sat, Feb 21 - Tue, Feb 24
Delta Logo
5:00 pm - 10:34 pmBTR-MLI
5h 34m1 stop
Delta Logo
5:00 pm - 10:04 pmMLI-BTR
5h 04m1 stop
$249Delta
Find Deal
Thu, Feb 19 - Mon, Feb 23
Delta Logo
6:00 am - 10:50 amBTR-STL
4h 50m1 stop
Delta Logo
10:00 am - 2:56 pmSTL-BTR
4h 56m1 stop
$249Delta
Find Deal
Mon, Nov 3 - Sat, Nov 8
American Airlines Logo
3:08 pm - 9:07 pmBTR-MLI
5h 59m1 stop
American Airlines Logo
10:52 am - 5:50 pmMLI-BTR
6h 58m1 stop
$253American Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 5
United Airlines Logo
9:30 am - 4:07 pmBTR-STL
6h 37m1 stop
United Airlines Logo
6:15 am - 11:18 amSTL-BTR
5h 03m1 stop
$254United Airlines
Find Deal
Mon, Nov 3 - Sat, Nov 8
American Airlines Logo
3:08 pm - 9:07 pmBTR-MLI
5h 59m1 stop
American Airlines Logo
6:05 am - 3:55 pmMLI-BTR
9h 50m2 stops
$258American Airlines
Find Deal
Wed, Oct 29 - Sun, Nov 2
United Airlines Logo
3:56 pm - 9:17 pmBTR-ORD
5h 21m1 stop
United Airlines Logo
7:10 am - 1:22 pmORD-BTR
6h 12m1 stop
$259United Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 5
United Airlines Logo
12:10 pm - 7:39 pmBTR-STL
7h 29m2 stops
United Airlines Logo
8:20 am - 3:21 pmSTL-BTR
7h 01m1 stop
$259United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
American Airlines Logo
11:10 am - 4:53 pmBTR-MLI
5h 43m1 stop
American Airlines Logo
9:50 am - 8:50 pmMLI-BTR
11h 00m2 stops
$264American Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
American Airlines Logo
3:08 pm - 11:07 pmBTR-STL
7h 59m1 stop
American Airlines Logo
5:17 am - 9:50 amSTL-BTR
4h 33m1 stop
$279American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Baton Rouge to Illinois flights

Get data-powered insights and trends into flights from Baton Rouge to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Baton Rouge to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baton Rouge to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Baton Rouge to Illinois is August, when tickets cost $273 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is $399 and $393 respectively.

What’s the cheapest day of the week to fly from Baton Rouge to Illinois?

The average price of all round-trip flights from Baton Rouge to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Baton Rouge to Illinois. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

Good to know

Low seasonAugust
Cheapest flight$125
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Baton Rouge to Chicago Midway Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Baton Rouge to Illinois?

    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 Baton Rouge to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baton Rouge to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Baton Rouge to 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 Baton Rouge to Illinois?

    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 from Baton Rouge to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baton Rouge to Illinois?

    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 from Baton Rouge to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $247 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $393.

Reviews of the top 3 airlines serving from Baton Rouge to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Baton Rouge to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baton Rouge to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7984 reviews
8.2Boarding
7.9Entertainment
8.5Crew
7.3Food
7.9Comfort
Airline reviews

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

2.0 MediocreLeslie, Oct 2025BOS - SFO
Read more Delta reviews

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

Everything you need to know for your flight from Baton Rouge to Illinois

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