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Baton Rouge

$119+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BTR
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$237
(Delta)

One-way from

$119
(Delta)

Popular in

March

Cheapest in

September

Average price

$238
From Illinois to Baton Rouge Ryan
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One-way flight from Illinois to Baton Rouge Ryan
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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.
vie. 12/51:10 pmORD - BTR
1 stop6h 46mDelta
dom. 12/76:50 pmBTR - ORD
1 stop5h 11mDelta
Deal found 9/9$249
This Delta deal was found by Cheapflights users on 9/9. 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.
jue. 10/23:40 pmSTL - BTR
1 stop6h 32mDelta
lun. 10/67:00 pmBTR - STL
1 stop4h 41mDelta
Deal found 9/9$249
This American Airlines deal was found by Cheapflights users on 9/9. 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.
jue. 10/25:18 amSTL - BTR
1 stop4h 20mAmerican Airlines
lun. 10/66:36 pmBTR - STL
1 stop5h 22mAmerican Airlines
Deal found 9/9$250
This Delta deal was found by Cheapflights users on 9/10. 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.
mar. 9/306:01 amSTL - BTR
1 stop6h 51mDelta
mié. 10/810:22 amBTR - STL
1 stop4h 21mDelta
Deal found 9/10$254
This United Airlines deal was found by Cheapflights users on 9/8. 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.
jue. 9/256:00 amORD - BTR
1 stop5h 14mUnited Airlines
dom. 9/282:00 pmBTR - ORD
1 stop5h 40mUnited Airlines
Deal found 9/8$259
This Delta deal was found by Cheapflights users on 9/8. 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.
mié. 9/247:10 amSTL - BTR
1 stop5h 42mDelta
dom. 9/286:50 pmBTR - STL
1 stop4h 34mDelta
Deal found 9/8$259
This United Airlines deal was found by Cheapflights users on 9/8. 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.
mié. 9/243:20 pmSTL - BTR
2 stops8h 04mUnited Airlines
dom. 9/284:05 pmBTR - STL
1 stop5h 55mUnited Airlines
Deal found 9/8$264
This United Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 9/303:23 pmSTL - BTR
2 stops7h 59mUnited Airlines
mié. 10/85:00 amBTR - STL
2 stops9h 27mUnited Airlines
Deal found 9/10$277
This United Airlines deal was found by Cheapflights users on 9/11. 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.
vie. 9/264:50 pmORD - BTR
1 stop6h 32mUnited Airlines
mar. 9/302:00 pmBTR - ORD
1 stop5h 40mUnited Airlines
Deal found 9/11$278
This American Airlines deal was found by Cheapflights users on 9/9. 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.
mié. 9/179:51 amORD - BTR
1 stop7h 12mAmerican Airlines
mar. 9/305:38 pmBTR - ORD
1 stop5h 34mAmerican Airlines
Deal found 9/9$279
This Delta deal was found by Cheapflights users on 9/11. 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.
mié. 9/246:00 amMDW - BTR
1 stop6h 52mDelta
sáb. 9/274:39 pmBTR - MDW
1 stop4h 31mDelta
Deal found 9/11$284
This Delta deal was found by Cheapflights users on 9/11. 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.
mar. 11/251:09 pmORD - BTR
1 stop6h 48mDelta
sáb. 11/296:50 pmBTR - ORD
1 stop5h 12mDelta
Deal found 9/11$284

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 septiembre 11, 2025.
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

ORD - BTR

ORDBTR

Chicago O'Hare Intl

vie. 12/5

1:10 pm-7:56 pm

1 stop6h 46m

Baton Rouge Ryan

dom. 12/7

6:50 pm-12:01 am

1 stop5h 11m

$249

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

mié. 10/8

6:00 am-11:14 am

1 stop5h 14m

Baton Rouge Ryan

mié. 10/15

2:00 pm-9:36 pm

1 stop7h 36m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

mié. 10/22

7:00 am-11:55 am

1 stop4h 55m

Baton Rouge Ryan

sáb. 10/25

6:46 pm-11:18 pm

1 stop4h 32m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

mié. 2/18

6:00 am-12:54 pm

1 stop6h 54m

Baton Rouge Ryan

sáb. 2/21

1:40 pm-6:04 pm

1 stop4h 24m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

jue. 10/2

3:40 pm-10:12 pm

1 stop6h 32m

Baton Rouge Ryan

lun. 10/6

7:00 pm-11:41 pm

1 stop4h 41m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

mar. 9/30

6:01 am-12:52 pm

1 stop6h 51m

Baton Rouge Ryan

mié. 10/8

10:22 am-2:43 pm

1 stop4h 21m

$254

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

jue. 9/25

6:00 am-11:14 am

1 stop5h 14m

Baton Rouge Ryan

dom. 9/28

2:00 pm-7:40 pm

1 stop5h 40m

$259

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

jue. 9/25

6:01 am-12:52 pm

1 stop6h 51m

Baton Rouge Ryan

lun. 9/29

6:50 pm-11:24 pm

1 stop4h 34m

$259

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

mié. 9/24

7:10 am-12:52 pm

1 stop5h 42m

Baton Rouge Ryan

dom. 9/28

6:50 pm-11:24 pm

1 stop4h 34m

$259

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

mié. 9/24

3:20 pm-11:24 pm

2 stops8h 04m

Baton Rouge Ryan

dom. 9/28

4:05 pm-10:00 pm

1 stop5h 55m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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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, August is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $334). Flying from Illinois to Baton Rouge in March is currently the most expensive (average of $455). 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.

What is the cheapest time of day to fly from IL to BTR?

Find hourly flight availability from Illinois to Baton Rouge. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Baton Rouge as you normally would.

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 4h 55m. The distance from Illinois to Baton Rouge is about 569 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Baton Rouge one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $119. Users have also found prices from $191 and $194 on American Airlines and United Airlines, respectively.

  • 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 Chicago Midway - Baton Rouge Ryan or Lambert-St Louis - 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, August is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $334). Flying from Illinois to Baton Rouge in March is currently the most expensive (average of $455). 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
Saint Francisville
McComb
Denham Springs
Port Allen

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$253Average$509FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$261Average$424FlexibilityNo cancel feeOn-time69%

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