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Cheap flights from Illinois to Baton Rouge from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Baton Rouge departing on 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Baton Rouge

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:30 am - 11:13 am
ORD
-
BTR
5h 43m
1 stop
United Airlines Logo
9:35 am - 2:51 pm
BTR
-
ORD
5h 16m
1 stop
$313United Airlines
Sat, Sep 5 - Wed, Sep 9
American Airlines Logo
1:46 pm - 8:12 pm
ORD
-
BTR
6h 26m
1 stop
American Airlines Logo
2:29 pm - 9:09 pm
BTR
-
ORD
6h 40m
1 stop
$313American Airlines
Sat, Sep 12 - Sat, Sep 19
Delta Logo
8:05 am - 12:52 pm
ORD
-
BTR
4h 47m
1 stop
Delta Logo
5:46 pm - 11:59 pm
BTR
-
ORD
6h 13m
1 stop
$313Delta
Wed, Sep 16 - Wed, Sep 23
Delta Logo
5:30 am - 12:47 pm
ORD
-
BTR
7h 17m
1 stop
Delta Logo
1:32 pm - 8:56 pm
BTR
-
ORD
7h 24m
1 stop
$313Delta
Sun, Sep 6 - Fri, Sep 11
Delta Logo
6:40 am - 12:47 pm
ORD
-
BTR
6h 07m
1 stop
Delta Logo
1:32 pm - 6:41 pm
BTR
-
ORD
5h 09m
1 stop
$313Delta
Sun, Sep 6 - Tue, Sep 8
American Airlines Logo
1:46 pm - 8:12 pm
ORD
-
BTR
6h 26m
1 stop
American Airlines Logo
2:29 pm - 9:09 pm
BTR
-
ORD
6h 40m
1 stop
$314American Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
3:34 pm - 10:53 pm
STL
-
BTR
7h 19m
1 stop
American Airlines Logo
5:56 am - 12:15 pm
BTR
-
STL
6h 19m
1 stop
$315American Airlines
Thu, Sep 10 - Tue, Sep 15
United Airlines Logo
2:22 pm - 7:43 pm
ORD
-
BTR
5h 21m
1 stop
United Airlines Logo
6:15 pm - 11:26 pm
BTR
-
ORD
5h 11m
1 stop
$319United Airlines
Thu, Oct 29 - Sun, Nov 1
United Airlines Logo
6:15 am - 11:13 am
STL
-
BTR
4h 58m
1 stop
United Airlines Logo
12:00 pm - 10:00 pm
BTR
-
STL
10h 00m
2 stops
$320United Airlines
Thu, Sep 10 - Tue, Sep 15
United Airlines Logo
6:15 am - 11:17 am
STL
-
BTR
5h 02m
1 stop
United Airlines Logo
5:00 am - 9:37 am
BTR
-
STL
4h 37m
1 stop
$332United Airlines
Fri, Dec 25 - Mon, Dec 28

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Delta flights from Illinois to Baton Rouge

Our best Delta deals on Illinois to Baton Rouge flight tickets
Delta
Sep 6
MDW6:05 amChicago Midway
6h 42m
1 stop
BTR12:47 pmBaton Rouge Ryan
Sep 11
BTR3:48 pmBaton Rouge Ryan
6h 56m
1 stop
MDW10:44 pmChicago Midway
$313
Delta
Sep 11
ORD8:05 amChicago O'Hare Intl
6h 56m
1 stop
BTR3:01 pmBaton Rouge Ryan
Sep 18
BTR5:45 pmBaton Rouge Ryan
6h 14m
1 stop
ORD11:59 pmChicago O'Hare Intl
$316
Delta
Sep 14
MDW6:05 amChicago Midway
6h 47m
1 stop
BTR12:52 pmBaton Rouge Ryan
Sep 21
BTR5:45 pmBaton Rouge Ryan
4h 59m
1 stop
MDW10:44 pmChicago Midway
$319

United Airlines flights from Illinois to Baton Rouge

Our best United Airlines deals on Illinois to Baton Rouge flight tickets
United Airlines
Sep 10
STL6:15 amLambert-St Louis
4h 58m
1 stop
BTR11:13 amBaton Rouge Ryan
Sep 15
BTR12:00 pmBaton Rouge Ryan
10h 00m
2 stops
STL10:00 pmLambert-St Louis
$320
United Airlines
Dec 25
STL6:15 amLambert-St Louis
5h 02m
1 stop
BTR11:17 amBaton Rouge Ryan
Dec 28
BTR5:00 amBaton Rouge Ryan
4h 37m
1 stop
STL9:37 amLambert-St Louis
$332
United Airlines
Oct 2
ORD4:11 pmChicago O'Hare Intl
5h 05m
1 stop
BTR9:16 pmBaton Rouge Ryan
Oct 4
BTR6:58 pmBaton Rouge Ryan
5h 25m
1 stop
ORD12:23 amChicago O'Hare Intl
$351

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Baton Rouge 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 August 2, 2026.
Use the filters below to find and compare flights from Illinois to Baton Rouge that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 9/5

5:30 am-11:13 am

1 stop5h 43m

Baton Rouge Ryan

Wed 9/9

9:35 am-2:51 pm

1 stop5h 16m

$313

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 9/12

1:46 pm-8:12 pm

1 stop6h 26m

Baton Rouge Ryan

Sat 9/19

2:29 pm-9:09 pm

1 stop6h 40m

$313

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Wed 9/16

8:05 am-12:52 pm

1 stop4h 47m

Baton Rouge Ryan

Wed 9/23

5:46 pm-11:59 pm

1 stop6h 13m

$313

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sun 9/6

5:30 am-12:47 pm

1 stop7h 17m

Baton Rouge Ryan

Fri 9/11

1:32 pm-8:56 pm

1 stop7h 24m

$313

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sun 9/6

6:40 am-12:47 pm

1 stop6h 07m

Baton Rouge Ryan

Tue 9/8

1:32 pm-6:41 pm

1 stop5h 09m

$313

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 9/12

1:46 pm-8:12 pm

1 stop6h 26m

Baton Rouge Ryan

Sat 9/19

2:29 pm-9:09 pm

1 stop6h 40m

$314

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 9/10

3:34 pm-10:53 pm

1 stop7h 19m

Baton Rouge Ryan

Tue 9/15

5:56 am-12:15 pm

1 stop6h 19m

$315

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Thu 10/29

2:22 pm-7:43 pm

1 stop5h 21m

Baton Rouge Ryan

Sun 11/1

6:15 pm-11:26 pm

1 stop5h 11m

$319

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 9/10

6:15 am-11:13 am

1 stop4h 58m

Baton Rouge Ryan

Tue 9/15

12:00 pm-10:00 pm

2 stops10h 00m

$320
Quickest round-trip

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 12/25

6:15 am-11:17 am

1 stop5h 02m

Baton Rouge Ryan

Mon 12/28

5:00 am-9:37 am

1 stop4h 37m

$332

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 Baton Rouge from

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

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 Baton Rouge?

In general, August is the cheapest month to fly from Illinois to Baton Rouge. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $298. If you’re not able to fly to Baton Rouge in August, then May is your next best option. Flight prices from Illinois to Baton Rouge during May average around $315.

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

You could potentially save up to 42% on your flight if you consider stops on a Illinois to Baton Rouge flight.

Cheap Illinois to Baton Rouge flight deals and tips

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

Fastest flight time

4h 09m

Direct flights

None
The fastest flight from Illinois to Baton Rouge takes 4h 09m
There are no direct flights from Illinois to Baton Rouge. There are no popular flight routes from Illinois to Baton Rouge.
Search flight deals

Frequently asked questions about flying from Illinois to Baton Rouge

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

    Prices for flights from Illinois to Baton Rouge Ryan Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Baton Rouge Ryan Airport.

  • What documentation or ID do you need to fly to Baton Rouge Ryan Airport?

    The travel and health documents you'll need for your trip to Baton Rouge Ryan Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Baton Rouge Ryan Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Baton Rouge

Compare and see reviews for airlines that fly from Illinois to Baton Rouge with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $253Free CancellationRating
7.8
8,493 reviews
Search Delta flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
10,061 reviews
Search United Airlines flights
American AirlinesPriceFrom $269Free CancellationRating
7.1
11,846 reviews
Search American Airlines flights

Traveling to a place near Baton Rouge?

Book flights to Baton Rouge if you plan to visit one of these locations
Denham Springs
Port Allen
McComb
Saint Francisville

Why use momondo?

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

Finding the right flight to Baton Rouge from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Baton Rouge quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Illinois to Baton Rouge flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Baton Rouge from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Illinois to Baton Rouge flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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