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Cheap flights from Baton Rouge to Illinois from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baton Rouge to Illinois departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Baton Rouge to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:51 pm - 10:07 pm
BTR
-
MDW
4h 16m1 stop
Delta Logo
10:48 am - 5:55 pm
MDW
-
BTR
7h 07m1 stop
$259Delta
Sat, Jan 17 - Fri, Jan 23
Delta Logo
5:51 pm - 11:59 pm
BTR
-
ORD
6h 08m1 stop
Delta Logo
5:30 am - 12:48 pm
ORD
-
BTR
7h 18m1 stop
$259Delta
Sat, Jan 17 - Fri, Jan 23
Delta Logo
5:00 pm - 10:22 pm
BTR
-
MDW
5h 22m1 stop
Delta Logo
10:46 am - 4:19 pm
MDW
-
BTR
5h 33m1 stop
$269Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
1:37 pm - 6:49 pm
BTR
-
ORD
5h 12m1 stop
Delta Logo
7:05 am - 12:48 pm
ORD
-
BTR
5h 43m1 stop
$269Delta
Fri, Jan 30 - Wed, Feb 4
Delta Logo
5:51 pm - 11:39 pm
BTR
-
STL
5h 48m1 stop
Delta Logo
5:00 pm - 10:01 pm
STL
-
BTR
5h 01m1 stop
$269Delta
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
1:55 pm - 10:58 pm
BTR
-
STL
9h 03m2 stops
United Airlines Logo
10:07 am - 3:58 pm
STL
-
BTR
5h 51m1 stop
$274United Airlines
Fri, Jan 30 - Mon, Feb 2
United Airlines Logo
5:15 pm - 10:00 pm
BTR
-
STL
4h 45m1 stop
United Airlines Logo
6:00 am - 1:17 pm
STL
-
BTR
7h 17m1 stop
$291United Airlines
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
5:15 pm - 10:00 pm
BTR
-
STL
4h 45m1 stop
United Airlines Logo
11:20 am - 9:32 pm
STL
-
BTR
10h 12m2 stops
$297United Airlines
Mon, Jan 19 - Mon, Jan 26
American Airlines Logo
6:47 pm - 11:44 pm
BTR
-
ORD
4h 57m1 stop
American Airlines Logo
5:05 am - 10:03 am
ORD
-
BTR
4h 58m1 stop
$319American Airlines
Sat, Jan 10 - Fri, Jan 16
American Airlines Logo
6:00 am - 11:05 am
BTR
-
STL
5h 05m1 stop
American Airlines Logo
11:05 am - 8:59 pm
STL
-
BTR
9h 54m2 stops
$333American Airlines
Thu, Jan 15 - Sun, Jan 18

American Airlines flights from Baton Rouge to Illinois

Our best American Airlines deals on Baton Rouge to Illinois flight tickets
American Airlines
Dec 31
BTR4:21 pmBaton Rouge Ryan
4h 58m
1 stop
ORD9:19 pmChicago O'Hare Intl
Jan 4
ORD8:03 amChicago O'Hare Intl
8h 01m
1 stop
BTR4:04 pmBaton Rouge Ryan
$294
Find similar
American Airlines
Jan 10
BTR6:47 pmBaton Rouge Ryan
4h 57m
1 stop
ORD11:44 pmChicago O'Hare Intl
Jan 16
ORD5:05 amChicago O'Hare Intl
4h 58m
1 stop
BTR10:03 amBaton Rouge Ryan
$319
Find similar
American Airlines
Jan 15
BTR6:00 amBaton Rouge Ryan
5h 05m
1 stop
STL11:05 amLambert-St Louis
Jan 18
STL11:05 amLambert-St Louis
9h 54m
2 stops
BTR8:59 pmBaton Rouge Ryan
$333
Find similar

Delta flights from Baton Rouge to Illinois

Our best Delta deals on Baton Rouge to Illinois flight tickets
Delta
Jan 17
BTR5:51 pmBaton Rouge Ryan
6h 08m
1 stop
ORD11:59 pmChicago O'Hare Intl
Jan 23
ORD5:30 amChicago O'Hare Intl
7h 18m
1 stop
BTR12:48 pmBaton Rouge Ryan
$259
Find similar
Delta
Jan 15
BTR5:51 pmBaton Rouge Ryan
5h 48m
1 stop
STL11:39 pmLambert-St Louis
Jan 18
STL5:00 pmLambert-St Louis
5h 01m
1 stop
BTR10:01 pmBaton Rouge Ryan
$269
Find similar
Delta
Jan 27
BTR1:37 pmBaton Rouge Ryan
5h 44m
1 stop
ORD7:21 pmChicago O'Hare Intl
Feb 4
ORD7:05 amChicago O'Hare Intl
5h 43m
1 stop
BTR12:48 pmBaton Rouge Ryan
$294
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Baton Rouge to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Baton Rouge to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Sat 1/17

5:51 pm-10:07 pm

1 stop4h 16m

Chicago Midway

Fri 1/23

10:48 am-5:55 pm

1 stop7h 07m

$259

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Sat 1/17

5:51 pm-11:59 pm

1 stop6h 08m

Chicago O'Hare Intl

Fri 1/23

5:30 am-12:48 pm

1 stop7h 18m

$259

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Tue 1/27

5:00 pm-10:22 pm

1 stop5h 22m

Chicago Midway

Sat 1/31

10:46 am-4:19 pm

1 stop5h 33m

$269

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 1/30

1:37 pm-6:49 pm

1 stop5h 12m

Chicago O'Hare Intl

Wed 2/4

7:05 am-12:48 pm

1 stop5h 43m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 1/15

5:51 pm-11:39 pm

1 stop5h 48m

Lambert-St Louis

Sun 1/18

5:00 pm-10:01 pm

1 stop5h 01m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 1/30

1:55 pm-10:58 pm

2 stops9h 03m

Lambert-St Louis

Mon 2/2

10:07 am-3:58 pm

1 stop5h 51m

$274

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Mon 1/19

5:15 pm-10:00 pm

1 stop4h 45m

Lambert-St Louis

Mon 1/26

6:00 am-1:17 pm

1 stop7h 17m

$291

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Mon 1/19

5:15 pm-10:00 pm

1 stop4h 45m

Lambert-St Louis

Mon 1/26

11:20 am-9:32 pm

2 stops10h 12m

$297

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Sat 1/10

6:47 pm-11:44 pm

1 stop4h 57m

Chicago O'Hare Intl

Fri 1/16

5:05 am-10:03 am

1 stop4h 58m

$319

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 1/15

6:00 am-11:05 am

1 stop5h 05m

Lambert-St Louis

Sun 1/18

11:05 am-8:59 pm

2 stops9h 54m

$333

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Baton Rouge to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Baton Rouge is in August. Flight prices, which tend to average around $273, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $276.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Baton Rouge to Illinois is on a Saturday when prices can be found for as low as $283. Flights from Baton Rouge to Illinois on a Sunday will generally be more expensive and average around $532. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Baton Rouge to Illinois during this time can be as low as $247. Flights at noon are often more expensive with an average ticket price of $393.

Can stopping save me money on Baton Rouge to Illinois flights?

You could potentially save up to 56% on your flight if you consider stops on a Baton Rouge to Illinois flight.

Cheap Baton Rouge to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baton Rouge to Illinois

Fastest flight time

4h 14m

Direct flights

None
The fastest flight from Baton Rouge to Illinois takes 4h 14m
There are no direct flights from Baton Rouge to Illinois. There are no popular flight routes from Baton Rouge to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Baton Rouge Ryan Airport to Illinois?

    Prices for flights from Baton Rouge Ryan Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Baton Rouge Ryan Airport to Illinois?

  • How old do you have to be to fly from Baton Rouge Ryan Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baton Rouge Ryan Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Baton Rouge to Illinois

Compare and see reviews for airlines that fly from Baton Rouge to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,014 reviews
Search Delta flights
United AirlinesPriceFrom $272Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Baton Rouge to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Baton Rouge to Illinois for you.

Can I find flights from Baton Rouge to Illinois with flexible booking policies on momondo?

All flight searches from Baton Rouge to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Baton Rouge to Illinois?

Once you have performed a search for Baton Rouge to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Baton Rouge to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Baton Rouge are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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