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Baton Rouge

$100+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BTR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$224
(American Airlines)

One-way from

$100
(American Airlines)

Popular in

November

Cheapest in

September

Average price

$344
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. 16% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/41:28 pmORD - BTR
1 stop6h 49mAmerican Airlines
Mon 7/712:56 pmBTR - ORD
1 stop6h 49mAmerican Airlines
Deal found 6/10$224
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 7/56:00 amSTL - BTR
1 stop5h 42mDelta
Sun 7/67:03 pmBTR - STL
1 stop4h 48mDelta
Deal found 6/11$233
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 7/264:22 pmMDW - BTR
1 stop5h 36mDelta
Sat 8/25:18 pmBTR - MDW
1 stop4h 24mDelta
Deal found 6/11$249
This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 12/249:55 amORD - BTR
1 stop5h 08mDelta
Fri 1/27:09 pmBTR - ORD
1 stop4h 49mDelta
Deal found 6/11$249
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:37 amSTL - BTR
1 stop4h 41mAmerican Airlines
Mon 6/306:32 pmBTR - STL
1 stop5h 27mAmerican Airlines
Deal found 6/10$259
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/86:00 amORD - BTR
1 stop7h 18mUnited Airlines
Tue 7/154:02 pmBTR - ORD
1 stop5h 31mUnited Airlines
Deal found 6/10$267
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/115:00 amSTL - BTR
2 stops10h 27mUnited Airlines
Wed 7/165:10 amBTR - STL
1 stop4h 18mUnited Airlines
Deal found 6/11$354
This Delta deal was found by Cheapflights users on 6/12. 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 6/275:27 pmMLI - BTR
1 stop4h 59mDelta
Tue 7/15:20 pmBTR - MLI
1 stop5h 27mDelta
Deal found 6/12$358
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/215:45 amMLI - BTR
1 stop5h 47mAmerican Airlines
Wed 6/254:26 pmBTR - MLI
1 stop6h 43mAmerican Airlines
Deal found 6/11$387
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/36:04 amEVV - BTR
1 stop5h 38mDelta
Mon 7/712:20 pmBTR - EVV
1 stop4h 41mDelta
Deal found 6/10$447
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/34:31 pmEVV - BTR
1 stop7h 13mAmerican Airlines
Mon 7/712:56 pmBTR - EVV
2 stops10h 28mAmerican Airlines
Deal found 6/10$452
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 9/910:49 amPIA - BTR
2 stops10h 21mUnited Airlines
Fri 9/124:03 pmBTR - PIA
2 stops24h 40mUnited Airlines
Deal found 6/11$463

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 12, 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

Fri 7/4

1:28 pm-8:17 pm

1 stop6h 49m

Baton Rouge Ryan

Mon 7/7

12:56 pm-7:45 pm

1 stop6h 49m

$224

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 7/5

6:00 am-11:42 am

1 stop5h 42m

Baton Rouge Ryan

Sun 7/6

7:03 pm-11:51 pm

1 stop4h 48m

$233

ChicagoBaton Rouge

MDW - BTR

MDWBTR

Chicago Midway

Sat 7/26

4:22 pm-9:58 pm

1 stop5h 36m

Baton Rouge Ryan

Sat 8/2

5:18 pm-9:42 pm

1 stop4h 24m

$249

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Tue 7/15

5:35 am-11:35 am

1 stop6h 00m

Baton Rouge Ryan

Fri 7/25

7:00 pm-12:09 am

1 stop5h 09m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 6/26

5:37 am-10:18 am

1 stop4h 41m

Baton Rouge Ryan

Mon 6/30

6:32 pm-11:59 pm

1 stop5h 27m

$259

ChicagoBaton Rouge

ORD - BTR

ORDBTR

Chicago O'Hare Intl

Tue 7/8

6:00 am-1:18 pm

1 stop7h 18m

Baton Rouge Ryan

Tue 7/15

4:02 pm-9:33 pm

1 stop5h 31m

$267

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 7/11

5:00 am-3:27 pm

2 stops10h 27m

Baton Rouge Ryan

Wed 7/16

5:10 am-9:28 am

1 stop4h 18m

$354

MolineBaton Rouge

MLI - BTR

MLIBTR

Moline Quad-City

Fri 6/27

5:27 pm-10:26 pm

1 stop4h 59m

Baton Rouge Ryan

Tue 7/1

5:20 pm-10:47 pm

1 stop5h 27m

$358

EvansvilleBaton Rouge

EVV - BTR

EVVBTR

Evansville Dress Regional

Thu 7/3

6:04 am-11:42 am

1 stop5h 38m

Baton Rouge Ryan

Mon 7/7

12:20 pm-5:01 pm

1 stop4h 41m

$447

EvansvilleBaton Rouge

EVV - BTR

EVVBTR

Evansville Dress Regional

Thu 7/3

4:31 pm-11:44 pm

1 stop7h 13m

Baton Rouge Ryan

Mon 7/7

12:56 pm-11:24 pm

2 stops10h 28m

$452

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 23 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 June 12, 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.

Rainfall in Baton Rouge by month

Plan your trip to Baton Rouge by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baton Rouge ranges from 3.4 - 6.0 inches per month. July is typically the wettest month, when rainfall can reach 6.0 in. October is typically the driest time to visit Baton Rouge when rainfall is around 3.4 in.

Temperature in Baton Rouge by month

Plan your trip to Baton Rouge by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baton Rouge, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Baton Rouge

Get insights into the airlines that provide service to Baton Rouge. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Baton Rouge. Reviews last updated June 12, 2025.
To help decide which airline to fly from Illinois to Baton Rouge, see what other customers have to say about Alaska Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $100. Users have also found prices from $160 and $264 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 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, 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 Illinois?

Book flights to Illinois 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$530FlexibilityNo cancel feeOn-time71%
DeltaCheapest$253Average$354FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$261Average$435FlexibilityNo cancel feeOn-time69%

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