What airlines fly to Illinois?

American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Illinois from Baton Rouge according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Baton Rouge Ryan to Illinois?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Baton Rouge Ryan to Illinois

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?

As of March 2026, there are 3 operators available to choose from 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.

$159 Cheap Flights from Baton Rouge to Illinois in 2026

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Find the cheapest flights from Baton Rouge to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:37 pm - 7:11 pm

BTR

STL

5h 34m

1 stop

9:31 am - 3:16 pm

STL

BTR

5h 45m

1 stop

$305Delta

Sat, Apr 25 - Sat, May 2

4:00 pm - 10:28 pm

BTR

MDW

6h 28m

1 stop

6:00 am - 12:50 pm

MDW

BTR

6h 50m

1 stop

$307Delta

Tue, Apr 21 - Tue, Apr 28

2:00 pm - 9:51 pm

BTR

ORD

7h 51m

1 stop

10:30 am - 3:31 pm

ORD

BTR

5h 01m

1 stop

$307United Airlines

Tue, May 12 - Tue, May 19

6:00 am - 10:34 am

BTR

STL

4h 34m

1 stop

4:41 pm - 9:56 pm

STL

BTR

5h 15m

1 stop

$311Delta

Tue, Apr 14 - Wed, Apr 15

5:00 am - 10:05 am

BTR

ORD

5h 05m

1 stop

5:15 pm - 10:45 pm

ORD

BTR

5h 30m

1 stop

$318United Airlines

Thu, Apr 16 - Tue, Apr 21

6:00 am - 11:56 am

BTR

STL

5h 56m

1 stop

6:00 am - 1:04 pm

STL

BTR

7h 04m

1 stop

$318Delta

Tue, Apr 14 - Thu, Apr 16

6:09 pm - 10:28 pm

BTR

STL

4h 19m

1 stop

11:15 am - 9:14 pm

STL

BTR

9h 59m

2 stops

$330United Airlines

Tue, Apr 7 - Sat, Apr 11

12:01 pm - 10:17 pm

BTR

STL

10h 16m

2 stops

8:57 am - 6:02 pm

STL

BTR

9h 05m

2 stops

$371American Airlines

Fri, Apr 10 - Sat, Apr 11

6:16 pm - 11:38 pm

BTR

PIA

5h 22m

1 stop

9:53 am - 5:57 pm

PIA

BTR

8h 04m

2 stops

$398American Airlines

Wed, Jun 3 - Wed, Jun 10

6:28 pm - 11:58 pm

BTR

PIA

5h 30m

1 stop

12:24 pm - 7:06 pm

PIA

BTR

6h 42m

1 stop

$440American Airlines

Wed, Jun 3 - Wed, Jun 10

Delta flights from Baton Rouge to Illinois

Our best Delta deals on Baton Rouge to Illinois flight tickets

Delta

Apr 25

BTR1:37 pmBaton Rouge Ryan

5h 34m

1 stop

STL7:11 pmLambert-St Louis

May 2

STL9:31 amLambert-St Louis

5h 45m

1 stop

BTR3:16 pmBaton Rouge Ryan

$305

Delta

Apr 21

BTR4:00 pmBaton Rouge Ryan

6h 28m

1 stop

MDW10:28 pmChicago Midway

Apr 28

MDW6:00 amChicago Midway

6h 50m

1 stop

BTR12:50 pmBaton Rouge Ryan

$307

Delta

Apr 14

BTR6:00 amBaton Rouge Ryan

4h 34m

1 stop

STL10:34 amLambert-St Louis

Apr 15

STL4:41 pmLambert-St Louis

5h 15m

1 stop

BTR9:56 pmBaton Rouge Ryan

$311

American Airlines flights from Baton Rouge to Illinois

Our best American Airlines deals on Baton Rouge to Illinois flight tickets

American Airlines

May 16

BTR6:32 pmBaton Rouge Ryan

5h 16m

1 stop

ORD11:48 pmChicago O'Hare Intl

May 22

ORD2:59 pmChicago O'Hare Intl

8h 00m

1 stop

BTR10:59 pmBaton Rouge Ryan

$364

American Airlines

Apr 10

BTR12:01 pmBaton Rouge Ryan

10h 16m

2 stops

STL10:17 pmLambert-St Louis

Apr 11

STL8:57 amLambert-St Louis

9h 05m

2 stops

BTR6:02 pmBaton Rouge Ryan

$371

American Airlines

May 15

BTR6:32 pmBaton Rouge Ryan

5h 16m

1 stop

ORD11:48 pmChicago O'Hare Intl

May 21

ORD1:19 pmChicago O'Hare Intl

8h 23m

1 stop

BTR9:42 pmBaton Rouge Ryan

$379

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 4/25

1:37 pm-7:11 pm

1 stop5h 34m

Lambert-St Louis

Sat 5/2

9:31 am-3:16 pm

1 stop5h 45m

$305

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Tue 4/21

4:00 pm-10:28 pm

1 stop6h 28m

Chicago Midway

Tue 4/28

6:00 am-12:50 pm

1 stop6h 50m

$307

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Tue 5/12

2:00 pm-9:51 pm

1 stop7h 51m

Chicago O'Hare Intl

Tue 5/19

10:30 am-3:31 pm

1 stop5h 01m

$307

Quickest round-trip

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 4/14

6:00 am-10:34 am

1 stop4h 34m

Lambert-St Louis

Wed 4/15

4:41 pm-9:56 pm

1 stop5h 15m

$311

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Thu 4/16

5:00 am-10:05 am

1 stop5h 05m

Chicago O'Hare Intl

Tue 4/21

5:15 pm-10:45 pm

1 stop5h 30m

$318

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 4/14

6:00 am-11:56 am

1 stop5h 56m

Lambert-St Louis

Thu 4/16

6:00 am-1:04 pm

1 stop7h 04m

$318

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 4/7

6:09 pm-10:28 pm

1 stop4h 19m

Lambert-St Louis

Sat 4/11

11:15 am-9:14 pm

2 stops9h 59m

$330

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 4/10

12:01 pm-10:17 pm

2 stops10h 16m

Lambert-St Louis

Sat 4/11

8:57 am-6:02 pm

2 stops9h 05m

$371

Baton RougePeoria

BTR - PIA

BTRPIA

Baton Rouge Ryan

Wed 6/3

6:16 pm-11:38 pm

1 stop5h 22m

Greater Peoria

Wed 6/10

9:53 am-5:57 pm

2 stops8h 04m

$398

Baton RougePeoria

BTR - PIA

BTRPIA

Baton Rouge Ryan

Wed 6/3

6:28 pm-11:58 pm

1 stop5h 30m

Greater Peoria

Wed 6/10

12:24 pm-7:06 pm

1 stop6h 42m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 January is also cheap. Prices for this month can be found on momondo for an average of $278.

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

You could potentially save up to 61% 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 20m
Direct flights	None

The fastest flight from Baton Rouge to Illinois takes 4h 20m

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?
As of March 2026, there are 3 operators available to choose from 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 Airlines	PriceFrom $248	Free Cancellation	Rating 7.1 11,503 reviews	Search American Airlines flights
Delta	PriceFrom $248	Free Cancellation	Rating 7.9 8,341 reviews	Search Delta flights
United Airlines	PriceFrom $272	Free Cancellation	Rating 7.4 9,491 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.