HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$159+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ORD
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baton Rouge to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 4, 2025.

This Delta deal was found by Cheapflights users on 12/2. 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.
Mon 12/296:59 pmBTR - STL
1 stop4h 43mDelta
Wed 1/75:00 pmSTL - BTR
1 stop5h 01mDelta
Deal found 12/2$249
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Mon 12/295:10 amBTR - STL
1 stop4h 39mUnited Airlines
Wed 1/711:20 amSTL - BTR
2 stops8h 13mUnited Airlines
Deal found 12/2$254
This Delta deal was found by Cheapflights users on 12/2. 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 12/196:59 pmBTR - MDW
1 stop4h 48mDelta
Thu 12/253:25 pmMDW - BTR
1 stop4h 23mDelta
Deal found 12/2$264
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/196:07 pmBTR - ORD
1 stop6h 07mUnited Airlines
Sat 1/35:49 amORD - BTR
1 stop5h 36mUnited Airlines
Deal found 12/3$264
This Delta deal was found by Cheapflights users on 12/2. 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 12/206:59 pmBTR - STL
1 stop4h 43mDelta
Tue 12/305:13 pmSTL - BTR
1 stop4h 40mDelta
Deal found 12/2$264
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/184:28 pmBTR - ORD
1 stop6h 47mAmerican Airlines
Sat 1/37:11 amORD - BTR
1 stop5h 27mAmerican Airlines
Deal found 12/2$279
This Delta deal was found by Cheapflights users on 12/2. 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 12/177:39 amBTR - STL
1 stop5h 18mDelta
Sun 12/215:13 pmSTL - BTR
1 stop4h 40mDelta
Deal found 12/2$279
This Delta deal was found by Cheapflights users on 12/3. 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 12/116:59 pmBTR - MDW
1 stop4h 48mDelta
Fri 1/96:45 amMDW - BTR
1 stop6h 45mDelta
Deal found 12/3$294
This Delta deal was found by Cheapflights users on 12/3. 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 12/116:59 pmBTR - ORD
1 stop5h 02mDelta
Fri 1/97:05 amORD - BTR
1 stop6h 25mDelta
Deal found 12/3$294
This Delta deal was found by Cheapflights users on 12/1. 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.
Sun 12/147:39 amBTR - STL
1 stop5h 23mDelta
Mon 1/127:10 amSTL - BTR
1 stop6h 20mDelta
Deal found 12/1$294
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/194:34 pmBTR - ORD
1 stop7h 08mAmerican Airlines
Sun 12/218:25 amORD - BTR
1 stop7h 33mAmerican Airlines
Deal found 12/3$299
This American Airlines deal was found by Cheapflights users on 12/1. 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.
Sun 12/145:31 amBTR - STL
2 stops7h 58mAmerican Airlines
Mon 1/123:54 pmSTL - BTR
1 stop5h 05mAmerican Airlines
Deal found 12/1$299

Find 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$199
(Delta)

One-way from

$159
(Delta)

Popular in

October

Cheapest in

August

Average price

$384
Provider with most accurate pricing for Baton Rouge Ryan-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baton Rouge Ryan-Chicago (CHI) flights.
Search Deals
From Baton Rouge Ryan to Illinois
Search Deals
One-way flight from Baton Rouge Ryan to Illinois
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($8 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 December 2025
Search Deals

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 December 4, 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 - MDW

BTRMDW

Baton Rouge Ryan

Wed 2/4

10:31 am-5:29 pm

1 stop6h 58m

Chicago Midway

Sat 2/7

4:30 pm-10:01 pm

1 stop5h 31m

$199

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Fri 1/30

4:02 pm-10:22 pm

1 stop6h 20m

Chicago Midway

Sat 1/31

4:30 pm-10:01 pm

1 stop5h 31m

$199

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 1/30

6:36 pm-11:55 pm

1 stop5h 19m

Chicago O'Hare Intl

Sat 1/31

11:15 am-4:19 pm

1 stop5h 04m

$199

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Thu 1/29

6:36 pm-11:56 pm

1 stop5h 20m

Chicago O'Hare Intl

Sat 2/7

11:45 am-4:19 pm

1 stop4h 34m

$199

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 1/30

4:02 pm-9:00 pm

1 stop4h 58m

Chicago O'Hare Intl

Sun 2/1

9:55 am-3:13 pm

1 stop5h 18m

$199

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Sat 2/7

1:37 pm-7:21 pm

1 stop5h 44m

Chicago O'Hare Intl

Tue 2/10

2:50 pm-10:01 pm

1 stop7h 11m

$199

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 1/16

5:51 pm-11:59 pm

1 stop6h 08m

Chicago O'Hare Intl

Mon 1/19

5:30 am-12:48 pm

1 stop7h 18m

$199

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Fri 1/16

5:51 pm-10:07 pm

1 stop4h 16m

Chicago Midway

Mon 1/19

10:46 am-3:13 pm

1 stop4h 27m

$249

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Thu 2/12

6:18 am-11:59 am

1 stop5h 41m

Chicago Midway

Mon 2/16

12:46 pm-6:18 pm

1 stop5h 32m

$249

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Fri 1/30

4:02 pm-10:22 pm

1 stop6h 20m

Chicago Midway

Sun 2/1

6:00 am-12:48 pm

1 stop6h 48m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 49 results
1
2
3
...
5

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, February is the cheapest month in which you can book a flight from Baton Rouge to Illinois (average of $57). Flying from Baton Rouge to Illinois in January is currently the most expensive (average of $176). 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 December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Baton Rouge to Illinois in the evening. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the morning.

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

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 December 4, 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
7.9
Good
8,011 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,066 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Baton Rouge to Illinois?

    There are many flights that can get you from Baton Rouge to Illinois in 4h 39m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. The distance from Baton Rouge to Illinois is about 569 mi. This flight may include one or multiple stops.

  • 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 - Lambert-St Louis.

  • 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, February is the cheapest month in which you can book a flight from Baton Rouge to Illinois (average of $57). Flying from Baton Rouge to Illinois in January is currently the most expensive (average of $176). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baton Rouge to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
New Orleans to John F Kennedy Intl flights
New Orleans to LaGuardia flights
New Orleans to Newark flights
New Orleans to Denver flights
New Orleans to Dallas/Fort Worth flights
New Orleans to Hobby flights
New Orleans to Orlando flights
New Orleans to Las Vegas flights
New Orleans to Los Angeles flights
New Orleans to George Bush Intcntl flights
New Orleans to O'Hare Intl flights
New Orleans to Boston flights
New Orleans to Miami flights
New Orleans to Fort Lauderdale flights
New Orleans to Dulles Intl flights
New Orleans to Sky Harbor Intl flights
New Orleans to Atlanta flights
New Orleans to Midway flights
New Orleans to Reagan-National flights
New Orleans to Seattle flights
New Orleans to Islip flights
New Orleans to White Plains flights
New Orleans to San Francisco flights
New Orleans to Baltimore flights
New Orleans to Salt Lake City flights
New Orleans to Love Field flights
New Orleans to Nashville flights
New Orleans to Ontario flights
New Orleans to Minneapolis flights
New Orleans to Tampa flights
New Orleans to San Diego flights
New Orleans to Stewart flights
New Orleans to Philadelphia flights
New Orleans to Honolulu flights
New Orleans to Detroit flights
Baton Rouge to John F Kennedy Intl flights
New Orleans to Raleigh flights
Shreveport to Denver flights
Lake Charles to Dallas/Fort Worth flights
Baton Rouge to Reagan-National flights
Baton Rouge to Hobby flights
New Orleans to Key West flights
Baton Rouge to Las Vegas flights
New Orleans to Sarasota flights
New Orleans to Austin flights
Shreveport to Miami flights
Baton Rouge to LaGuardia flights
Shreveport to Tampa flights
New Orleans to St. Louis flights
Baton Rouge to Newark flights

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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$391FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$272Average$378FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.