$129 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 4/28. 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

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$269
Peoria
Peoria2 stops$509
Springfield
Springfield2 stops$482
St. Louis
St. Louis1 stop$257
Chicago
Chicago1 stop$269
Peoria
Peoria2 stops$509
Springfield
Springfield2 stops$482
St. Louis
St. Louis1 stop$257

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

Thu, Mar 26 - Tue, Mar 31
United Airlines Logo
5:00 am - 9:21 am
BTR
-
STL
4h 21m
1 stop
United Airlines Logo
6:00 am - 11:21 am
STL
-
BTR
5h 21m
1 stop
$257United Airlines
Thu, Mar 26 - Tue, Mar 31
United Airlines Logo
5:00 am - 9:21 am
BTR
-
STL
4h 21m
1 stop
United Airlines Logo
11:15 am - 9:10 pm
STL
-
BTR
9h 55m
2 stops
$262United Airlines
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
5:57 pm - 10:58 pm
BTR
-
STL
5h 01m
1 stop
American Airlines Logo
5:12 am - 9:54 am
STL
-
BTR
4h 42m
1 stop
$265American Airlines
Fri, Apr 10 - Mon, Apr 20
Delta Logo
4:00 pm - 10:31 pm
BTR
-
MDW
6h 31m
1 stop
Delta Logo
6:00 am - 12:50 pm
MDW
-
BTR
6h 50m
1 stop
$269Delta
Fri, Mar 20 - Wed, Mar 25
United Airlines Logo
5:00 am - 10:07 am
BTR
-
ORD
5h 07m
1 stop
United Airlines Logo
4:00 pm - 9:08 pm
ORD
-
BTR
5h 08m
1 stop
$269United Airlines
Fri, Feb 27 - Tue, Mar 3
American Airlines Logo
4:27 pm - 11:35 pm
BTR
-
STL
7h 08m
2 stops
American Airlines Logo
11:46 am - 3:57 pm
STL
-
BTR
4h 11m
1 stop
$270American Airlines
Thu, Mar 5 - Wed, Mar 11
American Airlines Logo
8:11 pm - 12:55 am
BTR
-
ORD
4h 44m
1 stop
American Airlines Logo
10:28 am - 4:03 pm
ORD
-
BTR
5h 35m
1 stop
$271American Airlines
Wed, Mar 4 - Wed, Mar 11
Delta Logo
5:00 pm - 10:31 pm
BTR
-
MDW
5h 31m
1 stop
Delta Logo
6:00 am - 12:51 pm
MDW
-
BTR
6h 51m
1 stop
$279Delta
Wed, Mar 4 - Sat, Mar 7
Delta Logo
5:00 pm - 11:56 pm
BTR
-
ORD
6h 56m
1 stop
Delta Logo
6:45 am - 12:58 pm
ORD
-
BTR
6h 13m
1 stop
$279Delta
Tue, Mar 3 - Sat, Mar 7
Delta Logo
6:18 am - 11:59 am
BTR
-
MDW
5h 41m
1 stop
Delta Logo
6:00 am - 12:58 pm
MDW
-
BTR
6h 58m
1 stop
$284Delta
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 October and July, when the average cost of round-trip tickets is $382 and $378 respectively.

Good to know

Low seasonAugust
Cheapest flight$129
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Baton Rouge to St. Louis

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.
7.9
DeltaOverall score based on 8179 reviews
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

Awesome! On time flight, early arrival, and a complimentary upgrade!

10.0 ExcellentSarah, Feb 2026
SFO - LAX
Read more Delta reviews

Awesome! On time flight, early arrival, and a complimentary upgrade!

Paid for wifi that didn't work. No plug in seat to work. No entertainment.

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

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.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

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.

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

Information on your arrival and departure airports