$149 Find Cheap Flights from Baton Rouge to Illinois - Compare and Save

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 8/24. 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, 0 bags

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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$297
Moline
Moline2 stops$399
Peoria
Peoria2 stops$399
St. Louis
St. Louis1 stop$305
Chicago
Chicago1 stop$297
Moline
Moline2 stops$399
Peoria
Peoria2 stops$399
St. Louis
St. Louis1 stop$305

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

Wed, Sep 2 - Sat, Sep 5
Delta Logo
4:00 pm - 11:57 pm
BTR
-
ORD
7h 57m
1 stop
Delta Logo
8:05 am - 3:08 pm
ORD
-
BTR
7h 03m
1 stop
$297Delta
Wed, Sep 2 - Sat, Sep 5
Delta Logo
4:00 pm - 8:55 pm
BTR
-
ORD
4h 55m
1 stop
Delta Logo
11:22 am - 8:46 pm
ORD
-
BTR
9h 24m
2 stops
$302Delta
Tue, Aug 11 - Sat, Aug 22
Delta Logo
3:57 pm - 10:36 pm
BTR
-
MDW
6h 39m
1 stop
Delta Logo
10:56 am - 3:08 pm
MDW
-
BTR
4h 12m
1 stop
$303Delta
Wed, Aug 12 - Sat, Aug 22
Delta Logo
1:27 pm - 6:49 pm
BTR
-
ORD
5h 22m
1 stop
Delta Logo
1:50 pm - 8:46 pm
ORD
-
BTR
6h 56m
1 stop
$303Delta
Sat, Aug 1 - Thu, Aug 6
United Airlines Logo
2:05 pm - 11:29 pm
BTR
-
STL
9h 24m
2 stops
United Airlines Logo
6:14 am - 11:20 am
STL
-
BTR
5h 06m
1 stop
$314United Airlines
Wed, Aug 5 - Tue, Aug 11
United Airlines Logo
5:00 am - 10:07 am
BTR
-
STL
5h 07m
1 stop
United Airlines Logo
8:50 am - 5:33 pm
STL
-
BTR
8h 43m
2 stops
$338United Airlines
Wed, Jul 29 - Mon, Aug 3
United Airlines Logo
5:00 am - 3:46 pm
BTR
-
STL
10h 46m
2 stops
United Airlines Logo
6:30 pm - 10:46 pm
STL
-
BTR
4h 16m
1 stop
$372United Airlines
Wed, Jul 29 - Tue, Aug 4
American Airlines Logo
6:16 pm - 11:58 pm
BTR
-
STL
5h 42m
1 stop
American Airlines Logo
2:32 pm - 10:57 pm
STL
-
BTR
8h 25m
2 stops
$374American Airlines
Fri, Jul 24 - Mon, Jul 27
American Airlines Logo
6:16 pm - 11:40 pm
BTR
-
PIA
5h 24m
1 stop
American Airlines Logo
12:25 pm - 7:06 pm
PIA
-
BTR
6h 41m
1 stop
$565American Airlines
Fri, Jul 24 - Mon, Jul 27
American Airlines Logo
2:12 pm - 12:22 am
BTR
-
PIA
10h 10m
2 stops
American Airlines Logo
12:25 pm - 7:06 pm
PIA
-
BTR
6h 41m
1 stop
$570American Airlines
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.

How much is a round-trip flight from Baton Rouge to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Baton Rouge to Illinois departing in September.

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 September, when tickets cost $196 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $302 and $288 respectively.

Good to know

Low seasonAugust
Cheapest flight$149
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 5% 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.

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.
7.8
DeltaOverall score based on 8451 reviews
7.8Entertainment
7.8Comfort
8.1Boarding
8.5Crew
7.2Food
Airline reviews

It was as good as it could be. Flying is not a pleasant experience these days.

8.0 ExcellentMark, Jun 2026
LAX - ORD
Read more Delta reviews

It was as good as it could be. Flying is not a pleasant experience these days.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Cramped seating for me. Luckily it wasn’t a long flight

The plane was very warm upon entering. This was a bigger problem as the weather was cold so people were dressed accordingly.

5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Horrible experience. They delayed our flight 7 hours!! We had to seat at the airport with kids on 4th July all day!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

They canceled our flight and left us stranded to figure it out

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

The planes can use an actual cleaning. The armrest and seats do not appear to be cleaned on this one and most other planes.

Flight was delayed…once landed at ORD, no gates were available so made us wait for 56 minutes after we landed to let us out of the aircraft!

The flight de-boarded after being informed of a 3 hour delay. The gate agent said we could go to lounge. The flight ended up boarding 20 minutes later and I missed it.

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

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

Information on your arrival and departure airports