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$178+ Cheap flights from Baton Rouge (BTR) to Illinois

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ORD
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Baton Rouge to Illinois

Keep the following information in mind while searching for Baton Rouge to Illinois flight deals. Data was last updated julio 30, 2025.

Round-trip from

$249
(Delta)

One-way from

$178
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$354
From Baton Rouge Ryan to Illinois
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One-way flight from Baton Rouge Ryan to Illinois
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Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Baton Rouge to Illinois

Cheapest flights from Baton Rouge to Illinois
Explore the most affordable flight options available from Baton Rouge to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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.
jue. 9/42:20 pmBTR - ORD
1 stop4h 49mDelta
sáb. 9/135:30 amORD - BTR
1 stop7h 22mDelta
Deal found 7/30$249
This Delta deal was found by Cheapflights users on 7/29. 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.
mar. 8/124:38 pmBTR - MDW
1 stop5h 06mDelta
sáb. 8/164:25 pmMDW - BTR
1 stop5h 48mDelta
Deal found 7/29$259
This American Airlines deal was found by Cheapflights users on 7/29. 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.
mié. 8/135:39 pmBTR - STL
1 stop5h 26mAmerican Airlines
dom. 8/175:15 amSTL - BTR
1 stop5h 00mAmerican Airlines
Deal found 7/29$259
This United Airlines deal was found by Cheapflights users on 7/30. 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.
vie. 9/53:52 pmBTR - ORD
1 stop5h 48mUnited Airlines
dom. 9/76:00 amORD - BTR
1 stop5h 11mUnited Airlines
Deal found 7/30$265
This American Airlines deal was found by Cheapflights users on 7/30. 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. 8/225:39 pmBTR - ORD
1 stop5h 20mAmerican Airlines
dom. 8/2410:25 amORD - BTR
1 stop7h 24mAmerican Airlines
Deal found 7/30$274
This Delta deal was found by Cheapflights users on 7/29. 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.
sáb. 10/44:39 pmBTR - MLI
1 stop6h 03mDelta
mar. 11/46:00 amMLI - BTR
1 stop6h 26mDelta
Deal found 7/29$337
This American Airlines deal was found by Cheapflights users on 7/29. 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. 10/412:15 pmBTR - MLI
2 stops8h 10mAmerican Airlines
mar. 11/411:10 amMLI - BTR
1 stop4h 45mAmerican Airlines
Deal found 7/29$342
This United Airlines deal was found by Cheapflights users on 7/29. 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.
sáb. 10/45:00 amBTR - MLI
2 stops10h 05mUnited Airlines
mar. 10/73:40 pmMLI - BTR
2 stops7h 42mUnited Airlines
Deal found 7/29$443
This United Airlines deal was found by Cheapflights users on 7/30. 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.
mar. 8/265:00 amBTR - STL
2 stops9h 33mUnited Airlines
jue. 8/289:17 amSTL - BTR
2 stops10h 09mUnited Airlines
Deal found 7/30$547
This United Airlines deal was found by Cheapflights users on 7/30. 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. 8/145:10 amBTR - PIA
2 stops9h 53mUnited Airlines
lun. 8/183:39 pmPIA - BTR
2 stops7h 45mUnited Airlines
Deal found 7/30$659

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baton Rouge to Illinois 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 julio 30, 2025.
Use the filters below to find and compare flights from Baton Rouge to Illinois that are best for you.

Fly from

Baton Rouge

Fly to

Illinois

Route

Depart

Return

Price

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

jue. 9/4

2:20 pm-7:09 pm

1 stop4h 49m

Chicago O'Hare Intl

sáb. 9/13

5:30 am-12:52 pm

1 stop7h 22m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

mié. 8/13

5:39 pm-11:05 pm

1 stop5h 26m

Lambert-St Louis

dom. 8/17

5:15 am-10:15 am

1 stop5h 00m

$259

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

mar. 8/12

4:38 pm-9:44 pm

1 stop5h 06m

Chicago Midway

sáb. 8/16

4:25 pm-10:13 pm

1 stop5h 48m

$259

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

vie. 9/5

3:52 pm-9:40 pm

1 stop5h 48m

Chicago O'Hare Intl

dom. 9/7

6:00 am-11:11 am

1 stop5h 11m

$265

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

vie. 8/22

5:39 pm-10:59 pm

1 stop5h 20m

Chicago O'Hare Intl

dom. 8/24

10:25 am-5:49 pm

1 stop7h 24m

$274

Baton RougeMoline

BTR - MLI

BTRMLI

Baton Rouge Ryan

sáb. 10/4

4:39 pm-10:42 pm

1 stop6h 03m

Moline Quad-City

mar. 11/4

6:00 am-12:26 pm

1 stop6h 26m

$337

Baton RougeMoline

BTR - MLI

BTRMLI

Baton Rouge Ryan

sáb. 10/4

12:15 pm-8:25 pm

2 stops8h 10m

Moline Quad-City

mar. 11/4

11:10 am-3:55 pm

1 stop4h 45m

$342

Baton RougeMoline

BTR - MLI

BTRMLI

Baton Rouge Ryan

sáb. 10/4

5:00 am-3:05 pm

2 stops10h 05m

Moline Quad-City

mar. 10/7

3:40 pm-11:22 pm

2 stops7h 42m

$443

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

mar. 8/26

5:00 am-2:33 pm

2 stops9h 33m

Lambert-St Louis

jue. 8/28

9:17 am-7:26 pm

2 stops10h 09m

$547

Baton RougePeoria

BTR - PIA

BTRPIA

Baton Rouge Ryan

jue. 8/14

5:10 am-3:03 pm

2 stops9h 53m

Greater Peoria

lun. 8/18

3:39 pm-11:24 pm

2 stops7h 45m

$659

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 16 results
1
2

Best time to book a flight from Baton Rouge to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Baton Rouge 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 Baton Rouge to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Baton Rouge to Illinois (average of $245). Flying from Baton Rouge to Illinois in March is currently the most expensive (average of $321). 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 BTR to IL?

Find hourly flight availability from Baton Rouge to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated julio 30, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Baton Rouge to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Baton Rouge to Illinois. 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 from for flights from Baton Rouge to Illinois?

    If you book a flight to Illinois from Baton Rouge, you will be flying from Ryan, which is the city’s only airport. Baton Rouge Ryan (BTR) is located 5.8 mi from the center of Baton Rouge.

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

    One-way options have recently been found by users for as low as $178 on American Airlines. Other airlines that offer cheap prices include Delta from $179 and United Airlines from $263 one-way.

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

    The most popular flight routes from Baton Rouge to Illinois are Baton Rouge Ryan - Chicago O'Hare Intl, Baton Rouge Ryan - Chicago Midway and Baton Rouge Ryan - Moline Quad-City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baton Rouge to Illinois 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 Baton Rouge to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Baton Rouge to Illinois (average of $245). Flying from Baton Rouge to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Baton Rouge to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Baton Rouge to Illinois

Discover the top 3 airlines that operate flights from Baton Rouge to Illinois. 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$373FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$350FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$493FlexibilityNo cancel feeOn-time69%

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