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

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

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Baton Rouge according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 September 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.

$167 Cheap Flights from Baton Rouge to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

4:26 pm - 11:57 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

7h 31m1 stop Atlanta Hartsfield-Jackson

6:30 am - 12:56 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

6h 26m1 stop Atlanta Hartsfield-Jackson

$305Delta

Sat, Oct 17 - Sat, Oct 24

4:26 pm - 10:33 pmBTR Baton Rouge Ryan-MDW Chicago Midway

6h 07m1 stop Atlanta Hartsfield-Jackson

4:19 pm - 8:53 pmMDW Chicago Midway-BTR Baton Rouge Ryan

4h 34m1 stop Atlanta Hartsfield-Jackson

$305Delta

Sat, Oct 17 - Sat, Oct 24

6:03 am - 12:59 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 56m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

6:30 am - 12:56 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

6h 26m1 stop Atlanta Hartsfield-Jackson

$310Delta

Sat, Oct 17 - Sat, Oct 24

6:03 am - 12:47 pmBTR Baton Rouge Ryan-MDW Chicago Midway

6h 44m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

6:04 am - 12:56 pmMDW Chicago Midway-BTR Baton Rouge Ryan

6h 52m1 stop Atlanta Hartsfield-Jackson

$310Delta

Sat, Oct 17 - Sat, Oct 24

6:15 pm - 12:45 amBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 30m1 stop Houston George Bush Intcntl

5:30 am - 11:21 amORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 51m1 stop Houston George Bush Intcntl

$319United Airlines

Thu, Nov 19 - Mon, Nov 23

5:25 pm - 12:20 amBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 55m1 stop Dallas/Fort Worth

5:05 pm - 10:56 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 51m1 stop Dallas/Fort Worth

$329American Airlines

Thu, Nov 19 - Mon, Nov 23

8:00 am - 2:12 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 12m1 stop Dallas/Fort Worth

5:00 am - 10:31 amORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 31m1 stop Dallas/Fort Worth

$336American Airlines

Sat, Dec 5 - Mon, Dec 7

2:29 pm - 9:12 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 43m1 stop Dallas/Fort Worth

9:00 am - 4:52 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

7h 52m1 stop Dallas/Fort Worth

$336American Airlines

Thu, Jan 21 - Sun, Jan 24

5:00 am - 9:45 amBTR Baton Rouge Ryan-STL Lambert-St Louis

4h 45m1 stop Houston George Bush Intcntl

6:00 am - 11:26 amSTL Lambert-St Louis-BTR Baton Rouge Ryan

5h 26m1 stop Houston George Bush Intcntl

$339United Airlines

Thu, Dec 3 - Sun, Dec 6

5:20 am - 10:10 amBTR Baton Rouge Ryan-STL Lambert-St Louis

4h 50m1 stop Houston George Bush Intcntl

6:15 am - 11:18 amSTL Lambert-St Louis-BTR Baton Rouge Ryan

5h 03m1 stop Houston George Bush Intcntl

$339United Airlines

Wed, Oct 7 - Sat, Oct 10

Cheap last minute flights

Enter your travel dates to find the best prices.

4:30 pm - 11:59 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

7h 29m1 stop Atlanta Hartsfield-Jackson

8:05 am - 3:01 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

6h 56m1 stop Atlanta Hartsfield-Jackson

$429Delta

Sat, Sep 19 - Mon, Sep 21

4:30 pm - 11:59 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

7h 29m1 stop Atlanta Hartsfield-Jackson

8:05 am - 3:01 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

6h 56m1 stop Atlanta Hartsfield-Jackson

$431Delta

Sat, Sep 19 - Mon, Sep 21

1:32 pm - 8:30 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 58m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

9:46 am - 3:01 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 15m1 stop Atlanta Hartsfield-Jackson

$434Delta

Sat, Sep 19 - Mon, Sep 21

1:32 pm - 8:30 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 58m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

9:46 am - 3:01 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 15m1 stop Atlanta Hartsfield-Jackson

$436Delta

Sat, Sep 19 - Mon, Sep 21

6:14 pm - 12:59 amBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 45m1 stop Houston George Bush Intcntl

6:30 am - 11:13 amORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

4h 43m1 stop Houston George Bush Intcntl

$438United Airlines

Thu, Sep 17 - Sun, Sep 20

4:10 pm - 10:30 pmBTR Baton Rouge Ryan-STL Lambert-St Louis

6h 20m1 stop Houston George Bush Intcntl

3:12 pm - 9:16 pmSTL Lambert-St Louis-BTR Baton Rouge Ryan

6h 04m1 stop Houston George Bush Intcntl

$439United Airlines

Mon, Sep 21 - Sat, Sep 26

5:28 pm - 12:14 amBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 46m1 stop Dallas/Fort Worth

6:00 am - 10:51 amORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

4h 51m1 stop Dallas/Fort Worth

$444American Airlines

Fri, Sep 18 - Sat, Sep 19

5:28 pm - 11:30 pmBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

6h 02m1 stop Dallas/Fort Worth

11:00 am - 4:54 pmORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

5h 54m1 stop Dallas/Fort Worth

$444American Airlines

Fri, Sep 18 - Tue, Sep 22

4:10 pm - 10:30 pmBTR Baton Rouge Ryan-STL Lambert-St Louis

6h 20m1 stop Houston George Bush Intcntl

10:27 am - 7:31 pmSTL Lambert-St Louis-BTR Baton Rouge Ryan

9h 04m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$444United Airlines

Mon, Sep 21 - Sat, Sep 26

6:42 pm - 12:14 amBTR Baton Rouge Ryan-ORD Chicago O'Hare Intl

5h 32m1 stop Dallas/Fort Worth

6:00 am - 10:51 amORD Chicago O'Hare Intl-BTR Baton Rouge Ryan

4h 51m1 stop Dallas/Fort Worth

$459American Airlines

Fri, Sep 18 - Sun, Sep 20

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United Airlines flights from Baton Rouge to Illinois

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

United Airlines

Nov 19

BTR6:15 pmBaton Rouge Ryan

6h 30m

1 stop

ORD12:45 amChicago O'Hare Intl

Nov 23

ORD5:30 amChicago O'Hare Intl

5h 51m

1 stop

BTR11:21 amBaton Rouge Ryan

$319

United Airlines

Oct 10

BTR9:35 amBaton Rouge Ryan

4h 35m

1 stop

STL2:10 pmLambert-St Louis

Oct 14

STL6:00 amLambert-St Louis

9h 32m

2 stops

BTR3:32 pmBaton Rouge Ryan

$342

United Airlines

Oct 7

BTR5:20 amBaton Rouge Ryan

4h 50m

1 stop

STL10:10 amLambert-St Louis

Oct 10

STL6:00 amLambert-St Louis

9h 32m

2 stops

BTR3:32 pmBaton Rouge Ryan

$344

American Airlines flights from Baton Rouge to Illinois

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

American Airlines

Nov 19

BTR5:25 pmBaton Rouge Ryan

6h 55m

1 stop

ORD12:20 amChicago O'Hare Intl

Nov 23

ORD5:05 pmChicago O'Hare Intl

5h 51m

1 stop

BTR10:56 pmBaton Rouge Ryan

$329

American Airlines

Oct 10

BTR5:50 amBaton Rouge Ryan

6h 12m

1 stop

STL12:02 pmLambert-St Louis

Oct 14

STL5:40 amLambert-St Louis

5h 14m

1 stop

BTR10:54 amBaton Rouge Ryan

$337

American Airlines

Jan 21

BTR2:29 pmBaton Rouge Ryan

6h 43m

1 stop

ORD9:12 pmChicago O'Hare Intl

Jan 24

ORD9:00 amChicago O'Hare Intl

7h 52m

1 stop

BTR4:52 pmBaton Rouge Ryan

$339

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Sat 10/17

4:26 pm-11:57 pm

1 stop7h 31m

Chicago O'Hare Intl

Sat 10/24

6:30 am-12:56 pm

1 stop6h 26m

$305

Baton RougeChicago

BTR Baton Rouge Ryan - MDW Chicago Midway

BTRMDW

Baton Rouge Ryan

Sat 10/17

4:26 pm-10:33 pm

1 stop6h 07m

Chicago Midway

Sat 10/24

4:19 pm-8:53 pm

1 stop4h 34m

$305

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Sat 10/17

6:03 am-12:59 pm

2 stops6h 56m

Chicago O'Hare Intl

Sat 10/24

6:30 am-12:56 pm

1 stop6h 26m

$310

Baton RougeChicago

BTR Baton Rouge Ryan - MDW Chicago Midway

BTRMDW

Baton Rouge Ryan

Sat 10/17

6:03 am-12:47 pm

2 stops6h 44m

Chicago Midway

Sat 10/24

6:04 am-12:56 pm

1 stop6h 52m

$310

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Thu 11/19

6:15 pm-12:45 am

1 stop6h 30m

Chicago O'Hare Intl

Mon 11/23

5:30 am-11:21 am

1 stop5h 51m

$319

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Thu 11/19

5:25 pm-12:20 am

1 stop6h 55m

Chicago O'Hare Intl

Mon 11/23

5:05 pm-10:56 pm

1 stop5h 51m

$329

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Sat 12/5

8:00 am-2:12 pm

1 stop6h 12m

Chicago O'Hare Intl

Mon 12/7

5:00 am-10:31 am

1 stop5h 31m

$336

Baton RougeChicago

BTR Baton Rouge Ryan - ORD Chicago O'Hare Intl

BTRORD

Baton Rouge Ryan

Thu 1/21

2:29 pm-9:12 pm

1 stop6h 43m

Chicago O'Hare Intl

Sun 1/24

9:00 am-4:52 pm

1 stop7h 52m

$336

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Thu 12/3

5:00 am-9:45 am

1 stop4h 45m

Lambert-St Louis

Sun 12/6

6:00 am-11:26 am

1 stop5h 26m

$339

Quickest round-trip

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Wed 10/7

5:20 am-10:10 am

1 stop4h 50m

Lambert-St Louis

Sat 10/10

6:15 am-11:18 am

1 stop5h 03m

$339

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 January. Flight prices, which tend to average around $278, 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 January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $328.

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	$167
Fastest flight time	4h 35m
Direct flights	None

The best one-way flight to Illinois from Baton Rouge in the past 72 hours is $167. The best round-trip flight deal from Baton Rouge to Illinois found on momondo in the last 72 hours is $305.

The fastest flight from Baton Rouge to Illinois takes 4h 35m

There are no direct flights from Baton Rouge to Illinois. There are no popular flight routes from Baton Rouge to Illinois.

Search flight deals

Frequently asked questions about flying from Baton Rouge 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 September 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
Delta	PriceFrom $253	Free Cancellation	Rating 7.8 8,570 reviews	Search Delta flights
United Airlines	PriceFrom $272	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
American Airlines	PriceFrom $283	Free Cancellation	Rating 7.1 12,063 reviews	Search American 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.