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Cheap flights from Baton Rouge to Illinois from $100

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 8/30. 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

Delta Logo
3:40 pm - 10:14 pmBTR-MDW
6h 34m1 stop
Delta Logo
6:00 am - 12:26 pmMDW-BTR
6h 26m1 stop
$249Delta
Find Deal
Wed, Oct 22 - Wed, Oct 29
Delta Logo
2:20 pm - 7:09 pmBTR-ORD
4h 49m1 stop
Delta Logo
5:30 am - 12:52 pmORD-BTR
7h 22m1 stop
$249Delta
Find Deal
Thu, Sep 4 - Sat, Sep 13
American Airlines Logo
6:42 pm - 11:14 pmBTR-STL
4h 32m1 stop
American Airlines Logo
5:15 am - 10:15 amSTL-BTR
5h 00m1 stop
$259American Airlines
Find Deal
Wed, Aug 20 - Sun, Aug 24
Delta Logo
6:00 am - 11:48 amBTR-MDW
5h 48m1 stop
Delta Logo
4:25 pm - 10:13 pmMDW-BTR
5h 48m1 stop
$259Delta
Find Deal
Wed, Aug 20 - Sat, Aug 23
American Airlines Logo
5:45 am - 1:12 pmBTR-STL
7h 27m2 stops
American Airlines Logo
5:15 am - 10:15 amSTL-BTR
5h 00m1 stop
$264American Airlines
Find Deal
Wed, Aug 20 - Sun, Aug 24
American Airlines Logo
12:15 pm - 5:18 pmBTR-ORD
5h 03m1 stop
American Airlines Logo
9:45 am - 5:11 pmORD-BTR
7h 26m1 stop
$274American Airlines
Find Deal
Sat, Sep 27 - Fri, Oct 3
United Airlines Logo
6:07 pm - 12:14 amBTR-ORD
6h 07m1 stop
United Airlines Logo
11:35 am - 5:41 pmORD-BTR
6h 06m1 stop
$298United Airlines
Find Deal
Tue, Dec 23 - Tue, Dec 30
American Airlines Logo
6:21 pm - 11:49 pmBTR-STL
5h 28m1 stop
American Airlines Logo
5:11 am - 10:37 amSTL-BTR
5h 26m1 stop
$299American Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 20
United Airlines Logo
2:05 pm - 7:58 pmBTR-ORD
5h 53m1 stop
United Airlines Logo
6:00 am - 11:11 amORD-BTR
5h 11m1 stop
$319United Airlines
Find Deal
Wed, Sep 3 - Sun, Sep 7
United Airlines Logo
12:05 pm - 6:58 pmBTR-STL
6h 53m1 stop
United Airlines Logo
11:05 am - 3:22 pmSTL-BTR
4h 17m1 stop
$324United Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26

American Airlines flights from Baton Rouge to Illinois

Our best American Airlines deals on Baton Rouge to Illinois flight tickets
American Airlines
Aug 20
BTR6:42 pmBaton Rouge Ryan
4h 32m
1 stop
STL11:14 pmLambert-St Louis
Aug 24
STL5:15 amLambert-St Louis
5h 00m
1 stop
BTR10:15 amBaton Rouge Ryan
$259
Find similar
American Airlines
Aug 20
BTR5:45 amBaton Rouge Ryan
7h 27m
2 stops
STL1:12 pmLambert-St Louis
Aug 24
STL5:15 amLambert-St Louis
5h 00m
1 stop
BTR10:15 amBaton Rouge Ryan
$264
Find similar
American Airlines
Sep 27
BTR12:15 pmBaton Rouge Ryan
5h 03m
1 stop
ORD5:18 pmChicago O'Hare Intl
Oct 3
ORD9:45 amChicago O'Hare Intl
7h 26m
1 stop
BTR5:11 pmBaton Rouge Ryan
$274
Find similar

United Airlines flights from Baton Rouge to Illinois

Our best United Airlines deals on Baton Rouge to Illinois flight tickets
United Airlines
Dec 23
BTR6:07 pmBaton Rouge Ryan
6h 07m
1 stop
ORD12:14 amChicago O'Hare Intl
Dec 30
ORD11:35 amChicago O'Hare Intl
6h 06m
1 stop
BTR5:41 pmBaton Rouge Ryan
$298
Find similar
United Airlines
Sep 3
BTR2:05 pmBaton Rouge Ryan
5h 53m
1 stop
ORD7:58 pmChicago O'Hare Intl
Sep 7
ORD6:00 amChicago O'Hare Intl
5h 11m
1 stop
BTR11:11 amBaton Rouge Ryan
$319
Find similar
United Airlines
Aug 19
BTR12:05 pmBaton Rouge Ryan
6h 53m
1 stop
STL6:58 pmLambert-St Louis
Aug 26
STL11:05 amLambert-St Louis
4h 17m
1 stop
BTR3:22 pmBaton Rouge Ryan
$324
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 August 7, 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

Wed 10/22

3:40 pm-10:14 pm

1 stop6h 34m

Chicago Midway

Wed 10/29

6:00 am-12:26 pm

1 stop6h 26m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Thu 9/4

2:20 pm-7:09 pm

1 stop4h 49m

Chicago O'Hare Intl

Sat 9/13

5:30 am-12:52 pm

1 stop7h 22m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Wed 8/20

6:42 pm-11:14 pm

1 stop4h 32m

Lambert-St Louis

Sun 8/24

5:15 am-10:15 am

1 stop5h 00m

$259

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Wed 8/20

6:00 am-11:48 am

1 stop5h 48m

Chicago Midway

Sat 8/23

4:25 pm-10:13 pm

1 stop5h 48m

$259

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Wed 8/20

5:45 am-1:12 pm

2 stops7h 27m

Lambert-St Louis

Sun 8/24

5:15 am-10:15 am

1 stop5h 00m

$264

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Sat 9/27

12:15 pm-5:18 pm

1 stop5h 03m

Chicago O'Hare Intl

Fri 10/3

9:45 am-5:11 pm

1 stop7h 26m

$274

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Tue 12/23

6:07 pm-12:14 am

1 stop6h 07m

Chicago O'Hare Intl

Tue 12/30

11:35 am-5:41 pm

1 stop6h 06m

$298

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 10/9

6:21 pm-11:49 pm

1 stop5h 28m

Lambert-St Louis

Mon 10/20

5:11 am-10:37 am

1 stop5h 26m

$299

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Wed 9/3

2:05 pm-7:58 pm

1 stop5h 53m

Chicago O'Hare Intl

Sun 9/7

6:00 am-11:11 am

1 stop5h 11m

$319

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 8/19

12:05 pm-6:58 pm

1 stop6h 53m

Lambert-St Louis

Tue 8/26

11:05 am-3:22 pm

1 stop4h 17m

$324

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 November. Flight prices, which tend to average around $270, 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 November, 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 34% 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

Best Price Found

$100

Fastest flight time

3h 57m

Direct flights

None

Airports in Illinois

4 airports
The best one-way flight to Illinois from Baton Rouge in the past 72 hours is $100. The best round-trip flight deal from Baton Rouge to Illinois found on momondo in the last 72 hours is $249.
The fastest flight from Baton Rouge to Illinois takes 3h 57m
There are no direct flights from Baton Rouge to Illinois. Popular non-direct routes for this connection are Baton Rouge Ryan Airport - Chicago Midway Airport, Baton Rouge Ryan Airport - Chicago O'Hare Intl Airport and Baton Rouge Ryan Airport - Lambert-St Louis Airport.
There are 4 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL), Moline Quad-City (MLI)
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  • 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
DeltaPriceFrom $238Free CancellationRating
8.0
7,985 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
8,917 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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