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Baton Rouge

$238+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BTR
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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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 octubre 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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. 11/138:20 amSTL - BTR
1 stop7h 01mUnited Airlines
lun. 11/176:09 pmBTR - STL
1 stop4h 13mUnited Airlines
Deal found 10/29$279
This United Airlines deal was found by Cheapflights users on 10/29. 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. 11/142:21 pmORD - BTR
1 stop7h 10mUnited Airlines
mar. 11/183:56 pmBTR - ORD
1 stop7h 14mUnited Airlines
Deal found 10/29$300
This American Airlines deal was found by Cheapflights users on 10/29. 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. 11/138:20 amORD - BTR
1 stop7h 56mAmerican Airlines
lun. 11/175:27 pmBTR - ORD
1 stop6h 10mAmerican Airlines
Deal found 10/29$309
This American Airlines deal was found by Cheapflights users on 10/29. 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.
sáb. 12/133:37 pmMLI - BTR
1 stop5h 09mAmerican Airlines
mar. 12/164:23 pmBTR - MLI
1 stop6h 36mAmerican Airlines
Deal found 10/29$319
This Delta deal was found by Cheapflights users on 10/28. 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.
vie. 11/76:00 amMDW - BTR
1 stop6h 19mDelta
lun. 11/106:00 amBTR - MDW
1 stop5h 52mDelta
Deal found 10/28$339
This Delta deal was found by Cheapflights users on 10/29. 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. 11/76:45 amORD - BTR
1 stop5h 34mDelta
dom. 11/97:39 amBTR - ORD
1 stop4h 40mDelta
Deal found 10/29$339
This United Airlines deal was found by Cheapflights users on 10/30. 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. 11/68:20 amSTL - BTR
1 stop7h 01mUnited Airlines
mié. 11/1212:10 pmBTR - STL
1 stop6h 37mUnited Airlines
Deal found 10/30$339
This United Airlines deal was found by Cheapflights users on 10/30. 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. 11/612:31 pmSTL - BTR
2 stops10h 13mUnited Airlines
lun. 11/102:05 pmBTR - STL
2 stops8h 40mUnited Airlines
Deal found 10/30$349
This Delta deal was found by Cheapflights users on 10/30. 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. 11/49:52 amORD - BTR
1 stop5h 03mDelta
lun. 11/106:55 pmBTR - ORD
1 stop5h 06mDelta
Deal found 10/30$354
This United Airlines deal was found by Cheapflights users on 10/30. 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.
sáb. 12/1310:35 amORD - BTR
1 stop4h 47mUnited Airlines
sáb. 12/206:07 pmBTR - ORD
1 stop6h 07mUnited Airlines
Deal found 10/30$364
This United Airlines deal was found by Cheapflights users on 10/29. 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. 10/306:15 amSTL - BTR
1 stop5h 03mUnited Airlines
dom. 11/23:56 pmBTR - STL
1 stop6h 26mUnited Airlines
Deal found 10/29$369
This American Airlines deal was found by Cheapflights users on 10/30. 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.
vie. 11/215:00 amSTL - BTR
1 stop7h 29mAmerican Airlines
vie. 11/285:27 pmBTR - STL
1 stop6h 38mAmerican Airlines
Deal found 10/30$373

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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$238
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$371
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. 6% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 30, 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

sáb. 1/17

11:25 am-5:10 pm

1 stop5h 45m

Baton Rouge Ryan

dom. 1/18

6:18 am-1:39 pm

1 stop7h 21m

$249

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

sáb. 1/17

10:19 am-6:04 pm

1 stop7h 45m

Baton Rouge Ryan

dom. 1/18

6:47 pm-11:44 pm

1 stop4h 57m

$249

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

mié. 2/18

9:30 am-3:56 pm

1 stop6h 26m

Baton Rouge Ryan

sáb. 2/21

5:00 pm-11:54 pm

1 stop6h 54m

$249

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

vie. 1/16

5:05 am-10:03 am

1 stop4h 58m

Baton Rouge Ryan

dom. 1/18

6:47 pm-11:44 pm

1 stop4h 57m

$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-7:14 pm

1 stop5h 34m

$249

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

vie. 1/16

5:31 pm-10:03 pm

1 stop4h 32m

Baton Rouge Ryan

dom. 1/18

6:18 am-10:34 am

1 stop4h 16m

$274

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

jue. 11/13

8:20 am-3:21 pm

1 stop7h 01m

Baton Rouge Ryan

lun. 11/17

6:09 pm-10:22 pm

1 stop4h 13m

$279

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

vie. 11/14

2:21 pm-9:31 pm

1 stop7h 10m

Baton Rouge Ryan

mar. 11/18

3:56 pm-11:10 pm

1 stop7h 14m

$300

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

sáb. 1/17

11:21 am-5:10 pm

1 stop5h 49m

Baton Rouge Ryan

dom. 1/18

6:18 am-10:34 am

1 stop4h 16m

$304

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

mié. 2/25

7:10 am-12:54 pm

1 stop5h 44m

Baton Rouge Ryan

lun. 3/2

7:00 pm-11:54 pm

1 stop4h 54m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 56 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, 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.

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 octubre 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 49% on flights from Illinois to Baton Rouge by exploring options for tickets in the evening.

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 45m. 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 cheapest airlines to fly from Illinois to Baton Rouge one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $238. Users have also found prices from $238 and $298 on Delta 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, 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

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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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$338FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$253Average$378FlexibilityNo cancel feeOn-time71%

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