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Baton Rouge

$122+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BTR
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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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 June 25, 2026.

This American Airlines deal was found by Cheapflights users on 6/23. 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 6/305:59 am
ORD
-
BTR
1 stop7h 49m
American Airlines
Fri 7/36:16 pm
BTR
-
ORD
1 stop6h 34m
American Airlines
Deal found 6/23$243
This American Airlines deal was found by Cheapflights users on 6/22. 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.
Wed 7/111:43 am
ORD
-
BTR
1 stop6h 03m
American Airlines
Mon 7/137:36 pm
BTR
-
ORD
1 stop5h 14m
American Airlines
Deal found 6/22$276
This Delta deal was found by Cheapflights users on 6/23. 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 7/31:46 pm
ORD
-
BTR
1 stop4h 42m
Delta
Tue 7/77:06 pm
BTR
-
ORD
1 stop4h 47m
Delta
Deal found 6/23$291
This Delta deal was found by Cheapflights users on 6/20. 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 9/96:40 am
ORD
-
BTR
1 stop6h 12m
Delta
Sat 9/1210:29 am
BTR
-
ORD
1 stop6h 01m
Delta
Deal found 6/20$303
This Delta deal was found by Cheapflights users on 6/21. 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 12/45:30 am
ORD
-
BTR
1 stop7h 20m
Delta
Wed 12/97:00 pm
BTR
-
ORD
1 stop4h 50m
Delta
Deal found 6/21$306
This Delta deal was found by Cheapflights users on 6/20. 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.
Thu 8/2012:46 pm
MDW
-
BTR
1 stop5h 40m
Delta
Sun 8/236:07 am
BTR
-
MDW
1 stop5h 44m
Delta
Deal found 6/20$309
This Delta deal was found by Cheapflights users on 6/22. 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.
Thu 7/308:03 am
ORD
-
BTR
1 stop7h 06m
Delta
Mon 8/31:27 pm
BTR
-
ORD
1 stop7h 28m
Delta
Deal found 6/22$309
This American Airlines deal was found by Cheapflights users on 6/21. 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.
Wed 7/155:32 am
STL
-
BTR
1 stop5h 26m
American Airlines
Sun 7/197:36 pm
BTR
-
STL
1 stop4h 22m
American Airlines
Deal found 6/21$309
This American Airlines deal was found by Cheapflights users on 6/23. 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.
Wed 7/13:50 pm
ORD
-
BTR
1 stop7h 09m
American Airlines
Mon 7/67:36 pm
BTR
-
ORD
1 stop5h 14m
American Airlines
Deal found 6/23$321
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Wed 7/16:14 am
STL
-
BTR
1 stop5h 06m
United Airlines
Sun 7/55:00 am
BTR
-
STL
1 stop5h 07m
United Airlines
Deal found 6/21$322
This American Airlines deal was found by Cheapflights users on 6/23. 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 9/103:50 pm
ORD
-
BTR
1 stop7h 03m
American Airlines
Sun 9/136:11 pm
BTR
-
ORD
1 stop6h 03m
American Airlines
Deal found 6/23$324
This Delta deal was found by Cheapflights users on 6/23. 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 7/311:30 am
ORD
-
BTR
2 stops10h 25m
Delta
Mon 7/67:08 pm
BTR
-
ORD
1 stop4h 51m
Delta
Deal found 6/23$326

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 June 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$243
(American Airlines)

One-way from

$122
(American Airlines)

Popular in

April

Cheapest in

May

Average price

$323
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. 3% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 25, 2026.
Use the filters below to find and compare flights from Illinois to Baton Rouge that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Fri 7/24

5:30 am-9:39 am

1 stop4h 09m

Baton Rouge Ryan

Sat 7/25

1:27 pm-6:46 pm

1 stop5h 19m

$306

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Thu 7/23

5:00 am-10:58 am

1 stop5h 58m

Baton Rouge Ryan

Mon 7/27

7:36 pm-12:50 am

1 stop5h 14m

$309

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Thu 8/20

12:46 pm-6:26 pm

1 stop5h 40m

Baton Rouge Ryan

Sun 8/23

6:07 am-11:51 am

1 stop5h 44m

$309

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Fri 7/3

4:25 pm-9:55 pm

1 stop5h 30m

Baton Rouge Ryan

Sun 7/5

10:27 am-4:26 pm

1 stop5h 59m

$336

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Thu 7/9

6:00 am-12:47 pm

1 stop6h 47m

Baton Rouge Ryan

Mon 7/13

4:00 pm-10:15 pm

1 stop6h 15m

$339

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Tue 7/7

5:10 pm-9:56 pm

1 stop4h 46m

Baton Rouge Ryan

Sat 7/11

4:07 pm-10:15 pm

1 stop6h 08m

$339

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Tue 6/30

1:26 pm-9:55 pm

2 stops8h 29m

Baton Rouge Ryan

Sun 7/5

10:27 am-4:26 pm

1 stop5h 59m

$341

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Fri 7/24

5:10 pm-9:56 pm

1 stop4h 46m

Baton Rouge Ryan

Sat 7/25

4:07 pm-10:15 pm

1 stop6h 08m

$351

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 8/15

10:16 am-4:38 pm

1 stop6h 22m

Baton Rouge Ryan

Sun 8/16

6:13 pm-10:41 pm

1 stop4h 28m

$367

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Sat 8/15

4:11 pm-9:28 pm

1 stop5h 17m

Baton Rouge Ryan

Tue 8/18

12:00 pm-6:30 pm

1 stop6h 30m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 60 resultsSorted by cheapest first
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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, May is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $209). Flying from Illinois to Baton Rouge in September is currently the most expensive (average of $338). 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.

How much does it cost to fly round-trip from Illinois to Baton Rouge?

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 09m. 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, May is the cheapest month in which you can book a flight from Illinois to Baton Rouge (average of $209). Flying from Illinois to Baton Rouge in September is currently the most expensive (average of $338). 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

Browse thousands of different options on Cheapflights for your next trip

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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 June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$253Average$338FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$347FlexibilityNo cancel feeOn-time71%

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