HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Baton Rouge

$209+ Cheap flights from Illinois to Baton Rouge (BTR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BTR
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Baton Rouge with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Baton Rouge

Cheapest flights from Illinois to Baton Rouge
Explore the most affordable flight options available from Illinois to Baton Rouge. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:13 pm
MDW
-
BTR
1 stop5h 48m
Delta
Mon 3/94:00 pm
BTR
-
MDW
1 stop6h 31m
Delta
Deal found 1/28$269
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:18 am
ORD
-
BTR
1 stop6h 56m
Delta
Sat 2/215:00 pm
BTR
-
ORD
1 stop6h 56m
Delta
Deal found 1/28$269
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:06 pm
STL
-
BTR
1 stop5h 20m
American Airlines
Tue 3/310:28 am
BTR
-
STL
1 stop5h 00m
American Airlines
Deal found 1/28$269
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:15 am
ORD
-
BTR
1 stop4h 44m
Delta
Sat 2/141:51 pm
BTR
-
ORD
1 stop5h 28m
Delta
Deal found 1/28$279
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/191:39 pm
ORD
-
BTR
1 stop7h 57m
American Airlines
Sun 2/228:11 pm
BTR
-
ORD
1 stop4h 44m
American Airlines
Deal found 1/27$294
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/169:48 am
ORD
-
BTR
1 stop5h 25m
Delta
Sun 2/221:36 pm
BTR
-
ORD
1 stop7h 25m
Delta
Deal found 1/27$299
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:16 pm
ORD
-
BTR
1 stop6h 20m
American Airlines
Sat 2/287:02 am
BTR
-
ORD
1 stop7h 14m
American Airlines
Deal found 1/28$319
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:10 am
ORD
-
BTR
1 stop7h 40m
Delta
Sun 12/137:00 pm
BTR
-
ORD
1 stop4h 50m
Delta
Deal found 1/28$324
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:12 am
STL
-
BTR
1 stop4h 42m
American Airlines
Wed 2/255:00 am
BTR
-
STL
1 stop6h 01m
American Airlines
Deal found 1/28$328
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/76:25 am
MDW
-
BTR
1 stop6h 23m
Delta
Tue 2/105:00 pm
BTR
-
MDW
1 stop5h 22m
Delta
Deal found 1/28$339
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:42 am
ORD
-
BTR
1 stop5h 09m
United Airlines
Tue 8/252:02 pm
BTR
-
ORD
1 stop5h 12m
United Airlines
Deal found 1/28$339
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:00 am
STL
-
BTR
1 stop7h 17m
United Airlines
Sat 2/79:30 am
BTR
-
STL
1 stop6h 09m
United Airlines
Deal found 1/26$339

Find flight deals from Illinois to Baton Rouge

Keep the following information in mind while searching for Illinois to Baton Rouge flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Delta)

One-way from

$209
(Delta)

Popular in

March

Cheapest in

August

Average price

$363
Provider with most accurate pricing for Chicago (CHI)-Baton Rouge Ryan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Baton Rouge Ryan flights.
Search Deals
From Illinois to Baton Rouge Ryan
Search Deals
One-way flight from Illinois to Baton Rouge Ryan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Illinois to Baton Rouge that are best for you.

Fly from

Illinois

Fly to

Baton Rouge

Route

Depart

Return

Price

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Sat 3/7

4:13 pm-10:01 pm

1 stop5h 48m

Baton Rouge Ryan

Sat 3/14

10:26 am-3:25 pm

1 stop4h 59m

$269

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 3/21

5:20 pm-10:45 pm

1 stop5h 25m

Baton Rouge Ryan

Tue 3/24

2:00 pm-8:00 pm

1 stop6h 00m

$269

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Wed 3/11

8:10 am-4:03 pm

1 stop7h 53m

Baton Rouge Ryan

Tue 3/17

6:18 pm-11:36 pm

1 stop5h 18m

$269

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Wed 3/11

6:00 am-12:51 pm

1 stop6h 51m

Baton Rouge Ryan

Tue 3/17

4:00 pm-10:31 pm

1 stop6h 31m

$269

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Wed 4/15

5:15 pm-10:45 pm

1 stop5h 30m

Baton Rouge Ryan

Sat 4/18

2:00 pm-9:31 pm

1 stop7h 31m

$269

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Wed 4/15

10:43 am-3:07 pm

1 stop4h 24m

Baton Rouge Ryan

Sat 4/18

4:00 pm-10:28 pm

1 stop6h 28m

$269

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Sat 3/7

4:13 pm-10:01 pm

1 stop5h 48m

Baton Rouge Ryan

Mon 3/9

4:00 pm-10:31 pm

1 stop6h 31m

$269

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 2/28

6:45 am-12:58 pm

1 stop6h 13m

Baton Rouge Ryan

Mon 3/2

7:09 pm-11:56 pm

1 stop4h 47m

$269

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 5/9

7:10 am-12:47 pm

1 stop5h 37m

Baton Rouge Ryan

Mon 5/18

10:31 am-4:44 pm

1 stop6h 13m

$269

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 2/24

9:23 am-5:46 pm

2 stops8h 23m

Baton Rouge Ryan

Tue 3/3

7:08 am-1:16 pm

1 stop6h 08m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 51 results
1
2
3
...
6

Best time to book a flight from Illinois to Baton Rouge

Have a flexible travel schedule? Discover the best time to fly to Baton Rouge from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Baton Rouge

What is the cheapest month to book a flight from Illinois to Baton Rouge?

Currently, June is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $80). Flying from Illinois to Baton Rouge in July is currently the most expensive (average of $161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Baton Rouge. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Baton Rouge from Illinois?

    For a flight from Illinois to Baton Rouge, you will be flying into Ryan. Baton Rouge Ryan (BTR) is just 5.8 mi from the center of the city.

  • How long is the flight from Illinois to Baton Rouge?

    Departing from Illinois to Baton Rouge will take you 5h 25m. The distance from Illinois to Baton Rouge is about 811 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Illinois to Baton Rouge?

    The most popular route from Illinois to Baton Rouge is Chicago O'Hare Intl - Baton Rouge Ryan. You may also consider Lambert-St Louis - Baton Rouge Ryan or Chicago Midway - Baton Rouge Ryan.

  • Can I find deals for flights from Illinois to Baton Rouge that include hotel bookings?

    Yes. In addition to deals on Illinois to Baton Rouge flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Baton Rouge?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Baton Rouge.

  • Can I find deals for business class flights from Illinois to Baton Rouge?

    Yes. Cheapflights offers flight deals from Illinois to Baton Rouge by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Baton Rouge?

    Currently, June is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $80). Flying from Illinois to Baton Rouge in July is currently the most expensive (average of $161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Baton Rouge?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Baton Rouge

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to New Orleans flights
Newark to New Orleans flights
LaGuardia to New Orleans flights
Los Angeles to New Orleans flights
Boston to New Orleans flights
Dulles Intl to New Orleans flights
O'Hare Intl to New Orleans flights
Reagan-National to New Orleans flights
Baltimore to New Orleans flights
Atlanta to New Orleans flights
San Francisco to New Orleans flights
Dallas/Fort Worth to New Orleans flights
Detroit to New Orleans flights
Denver to New Orleans flights
White Plains to New Orleans flights
Hobby to New Orleans flights
Minneapolis to New Orleans flights
Philadelphia to New Orleans flights
Seattle to New Orleans flights
Orlando to New Orleans flights
George Bush Intcntl to New Orleans flights
Midway to New Orleans flights
Raleigh to New Orleans flights
Ontario to New Orleans flights
Stewart to New Orleans flights
Charlotte to New Orleans flights
Austin to New Orleans flights
Sky Harbor Intl to New Orleans flights
Fort Lauderdale to New Orleans flights
Cleveland to New Orleans flights
Tampa to New Orleans flights
San Diego to New Orleans flights
Portland to New Orleans flights
Richmond to New Orleans flights
Oakland to New Orleans flights
San Jose to New Orleans flights
Love Field to New Orleans flights
Milwaukee to New Orleans flights
Kansas City to New Orleans flights
Pittsburgh to New Orleans flights
Charleston to New Orleans flights
Atlantic City to New Orleans flights
Salt Lake City to New Orleans flights
St. Louis to New Orleans flights
Columbus to New Orleans flights
Indianapolis to New Orleans flights
Santa Ana to New Orleans flights
Nashville to New Orleans flights
Las Vegas to New Orleans flights
Hartford to New Orleans flights

Top 3 airlines flying from Illinois to Baton Rouge

Discover the top 3 airlines that operate flights from Illinois to Baton Rouge. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$364FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$360FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.