Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Baton Rouge to Illinois from $133

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 2/25. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Baton Rouge to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:27 pm - 10:58 pm
BTR
-
STL
6h 31m
1 stop
American Airlines Logo
5:12 am - 9:54 am
STL
-
BTR
4h 42m
1 stop
$261American Airlines
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
5:57 pm - 10:58 pm
BTR
-
STL
5h 01m
1 stop
American Airlines Logo
5:12 am - 9:54 am
STL
-
BTR
4h 42m
1 stop
$265American Airlines
Thu, Mar 5 - Mon, Mar 9
Delta Logo
7:05 pm - 11:54 pm
BTR
-
ORD
4h 49m
1 stop
Delta Logo
11:10 am - 6:22 pm
ORD
-
BTR
7h 12m
1 stop
$269Delta
Fri, Mar 20 - Wed, Mar 25
United Airlines Logo
5:00 am - 9:25 am
BTR
-
STL
4h 25m
1 stop
United Airlines Logo
6:00 am - 11:18 am
STL
-
BTR
5h 18m
1 stop
$269United Airlines
Thu, Apr 9 - Sun, Apr 12
American Airlines Logo
4:27 pm - 10:58 pm
BTR
-
STL
6h 31m
1 stop
American Airlines Logo
4:13 pm - 10:39 pm
STL
-
BTR
6h 26m
1 stop
$283American Airlines
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
5:00 am - 11:10 am
BTR
-
ORD
6h 10m
1 stop
United Airlines Logo
5:48 am - 11:18 am
ORD
-
BTR
5h 30m
1 stop
$289United Airlines
Sat, Mar 14 - Sun, Apr 5
United Airlines Logo
6:08 pm - 10:28 pm
BTR
-
STL
4h 20m
1 stop
United Airlines Logo
6:00 am - 1:25 pm
STL
-
BTR
7h 25m
1 stop
$297United Airlines
Mon, Mar 30 - Fri, Apr 3
Delta Logo
1:40 pm - 6:02 pm
BTR
-
STL
4h 22m
1 stop
Delta Logo
6:00 am - 12:45 pm
STL
-
BTR
6h 45m
1 stop
$299Delta
Thu, Jun 18 - Sun, Jun 21
Delta Logo
7:09 pm - 11:56 pm
BTR
-
ORD
4h 47m
1 stop
Delta Logo
2:46 pm - 10:01 pm
ORD
-
BTR
7h 15m
1 stop
$309Delta
Fri, Feb 20 - Mon, Feb 23
Delta Logo
1:40 pm - 6:02 pm
BTR
-
STL
4h 22m
1 stop
Delta Logo
6:00 am - 12:45 pm
STL
-
BTR
6h 45m
1 stop
$349Delta
Thu, Jun 18 - Sun, Jun 21

Delta flights from Baton Rouge to Illinois

Our best Delta deals on Baton Rouge to Illinois flight tickets
Delta
Mar 20
BTR7:05 pmBaton Rouge Ryan
4h 49m
1 stop
ORD11:54 pmChicago O'Hare Intl
Mar 25
ORD2:38 pmChicago O'Hare Intl
7h 25m
1 stop
BTR10:03 pmBaton Rouge Ryan
$269
Delta
Jun 18
BTR1:40 pmBaton Rouge Ryan
4h 22m
1 stop
STL6:02 pmLambert-St Louis
Jun 21
STL6:00 amLambert-St Louis
6h 45m
1 stop
BTR12:45 pmBaton Rouge Ryan
$299
Delta
Feb 20
BTR7:09 pmBaton Rouge Ryan
4h 47m
1 stop
ORD11:56 pmChicago O'Hare Intl
Feb 23
ORD2:46 pmChicago O'Hare Intl
7h 15m
1 stop
BTR10:01 pmBaton Rouge Ryan
$309

United Airlines flights from Baton Rouge to Illinois

Our best United Airlines deals on Baton Rouge to Illinois flight tickets
United Airlines
Apr 9
BTR5:00 amBaton Rouge Ryan
4h 25m
1 stop
STL9:25 amLambert-St Louis
Apr 12
STL6:00 amLambert-St Louis
5h 18m
1 stop
BTR11:18 amBaton Rouge Ryan
$269
United Airlines
Apr 10
BTR5:00 amBaton Rouge Ryan
5h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
Apr 20
ORD5:15 pmChicago O'Hare Intl
5h 30m
1 stop
BTR10:45 pmBaton Rouge Ryan
$288
United Airlines
Mar 14
BTR5:00 amBaton Rouge Ryan
6h 10m
1 stop
ORD11:10 amChicago O'Hare Intl
Apr 5
ORD5:48 amChicago O'Hare Intl
5h 30m
1 stop
BTR11:18 amBaton Rouge Ryan
$289

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 February 9, 2026.
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 RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 3/5

4:27 pm-10:58 pm

1 stop6h 31m

Lambert-St Louis

Mon 3/9

5:12 am-9:54 am

1 stop4h 42m

$261

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 3/5

5:57 pm-10:58 pm

1 stop5h 01m

Lambert-St Louis

Mon 3/9

5:12 am-9:54 am

1 stop4h 42m

$265

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 3/20

7:05 pm-11:54 pm

1 stop4h 49m

Chicago O'Hare Intl

Wed 3/25

11:10 am-6:22 pm

1 stop7h 12m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 4/9

5:00 am-9:25 am

1 stop4h 25m

Lambert-St Louis

Sun 4/12

6:00 am-11:18 am

1 stop5h 18m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 3/5

4:27 pm-10:58 pm

1 stop6h 31m

Lambert-St Louis

Mon 3/9

4:13 pm-10:39 pm

1 stop6h 26m

$283

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Sat 3/14

5:00 am-11:10 am

1 stop6h 10m

Chicago O'Hare Intl

Sun 4/5

5:48 am-11:18 am

1 stop5h 30m

$289

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Mon 3/30

6:08 pm-10:28 pm

1 stop4h 20m

Lambert-St Louis

Fri 4/3

6:00 am-1:25 pm

1 stop7h 25m

$297

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 6/18

1:40 pm-6:02 pm

1 stop4h 22m

Lambert-St Louis

Sun 6/21

6:00 am-12:45 pm

1 stop6h 45m

$299

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 2/20

7:09 pm-11:56 pm

1 stop4h 47m

Chicago O'Hare Intl

Mon 2/23

2:46 pm-10:01 pm

1 stop7h 15m

$309

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 6/18

1:40 pm-6:02 pm

1 stop4h 22m

Lambert-St Louis

Sun 6/21

6:00 am-12:45 pm

1 stop6h 45m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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.

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

You could potentially save up to 55% 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 09m

Direct flights

None
The fastest flight from Baton Rouge to Illinois takes 4h 09m
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
11,255 reviews
Search American Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,173 reviews
Search Delta flights
United AirlinesPriceFrom $272Free CancellationRating
7.4
9,257 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.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/11
Wed 3/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $36
Flights to Chicagofrom $50
Flights to Orlandofrom $27
Flights to San Franciscofrom $51
Flights to Las Vegasfrom $28
Flights to Washington, D.C.from $51
Flights to Bostonfrom $50
Flights to Atlantafrom $49
Flights to Dallasfrom $50
Flights to Seattlefrom $65