$209 Find Cheap Flights from Baton Rouge to Illinois

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baton Rouge to Illinois departing on 1/15. 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$279
Moline
Moline2 stops$399
Peoria
Peoria2 stops$349
St. Louis
St. Louis1 stop$209
Chicago
Chicago1 stop$279
Moline
Moline2 stops$399
Peoria
Peoria2 stops$349
St. Louis
St. Louis1 stop$209

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, Jan 15 - Sun, Jan 18
Delta Logo
5:51 pm - 11:39 pm
BTR
-
STL
5h 48m1 stop
Delta Logo
7:10 am - 1:30 pm
STL
-
BTR
6h 20m1 stop
$209Delta
Thu, Jan 1 - Sun, Jan 4
American Airlines Logo
4:21 pm - 10:56 pm
BTR
-
STL
6h 35m1 stop
American Airlines Logo
5:16 am - 9:39 am
STL
-
BTR
4h 23m1 stop
$264American Airlines
Wed, Jan 7 - Wed, Jan 21
Delta Logo
5:51 pm - 11:39 pm
BTR
-
STL
5h 48m1 stop
Delta Logo
6:00 am - 12:48 pm
STL
-
BTR
6h 48m1 stop
$274Delta
Fri, Jan 2 - Tue, Jan 6
Delta Logo
6:07 am - 11:58 am
BTR
-
MDW
5h 51m1 stop
Delta Logo
6:45 am - 1:30 pm
MDW
-
BTR
6h 45m1 stop
$279Delta
Fri, Jan 2 - Sun, Jan 4
Delta Logo
6:07 am - 11:24 am
BTR
-
ORD
5h 17m1 stop
Delta Logo
5:29 pm - 9:53 pm
ORD
-
BTR
4h 24m1 stop
$279Delta
Wed, Jan 7 - Wed, Jan 21
American Airlines Logo
6:00 am - 2:50 pm
BTR
-
STL
8h 50m2 stops
American Airlines Logo
11:05 am - 8:59 pm
STL
-
BTR
9h 54m2 stops
$284American Airlines
Thu, Jan 15 - Sun, Jan 18
American Airlines Logo
7:07 am - 3:04 pm
BTR
-
STL
7h 57m1 stop
American Airlines Logo
1:35 pm - 10:56 pm
STL
-
BTR
9h 21m2 stops
$303American Airlines
Tue, Dec 30 - Sat, Jan 3
United Airlines Logo
6:07 pm - 12:14 am
BTR
-
ORD
6h 07m1 stop
United Airlines Logo
5:49 am - 11:25 am
ORD
-
BTR
5h 36m1 stop
$309United Airlines
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
7:00 am - 1:00 pm
BTR
-
ORD
6h 00m1 stop
United Airlines Logo
8:54 am - 3:58 pm
ORD
-
BTR
7h 04m1 stop
$339United Airlines
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
9:30 am - 3:38 pm
BTR
-
STL
6h 08m1 stop
United Airlines Logo
6:00 am - 11:27 am
STL
-
BTR
5h 27m1 stop
$339United 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.

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 December, when the average cost of round-trip tickets is $388 and $381 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$209
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 10% increase in price.
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.

  • 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 8018 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.1Boarding
Airline reviews

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

4.0 OkayEmily, Dec 2025
LAX - ATL
Read more Delta reviews

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

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

Very bad! They kept delaying my flight and wouldn’t do anything about it

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

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

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.👍

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.

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.

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

Information on your arrival and departure airports