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$169+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ORD
out 11 — out 181
sáb 10/11
sáb 10/18
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 setembro 11, 2025.

Round-trip from

$249
(Delta)

One-way from

$169
(Delta)

Popular in

December

Cheapest in

November

Average price

$328
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. 1% potential increase in price ($5 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 September 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 setembro 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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.
sex 10/243:40 pmBTR - MDW
1 stop6h 34mDelta
sáb 10/254:23 pmMDW - BTR
1 stop5h 24mDelta
Deal found 9/9$249
This Delta deal was found by Cheapflights users on 9/11. 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.
sex 10/247:00 pmBTR - ORD
1 stop4h 58mDelta
ter 10/285:20 amORD - BTR
1 stop4h 17mDelta
Deal found 9/11$249
This Delta deal was found by Cheapflights users on 9/11. 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.
sex 9/264:39 pmBTR - ORD
1 stop7h 15mDelta
seg 9/293:35 pmORD - BTR
1 stop6h 37mDelta
Deal found 9/11$259
This Delta deal was found by Cheapflights users on 9/11. 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.
sex 9/264:39 pmBTR - STL
1 stop6h 45mDelta
ter 9/3011:04 amSTL - BTR
1 stop4h 48mDelta
Deal found 9/11$259
This United Airlines deal was found by Cheapflights users on 9/11. 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.
sex 9/264:05 pmBTR - STL
1 stop5h 55mUnited Airlines
ter 9/3012:25 pmSTL - BTR
2 stops10h 57mUnited Airlines
Deal found 9/11$264
This Delta deal was found by Cheapflights users on 9/11. 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.
sex 11/710:23 amBTR - STL
1 stop5h 47mDelta
dom 11/97:05 amSTL - BTR
1 stop6h 30mDelta
Deal found 9/11$274
This United Airlines deal was found by Cheapflights users on 9/10. 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.
qui 9/255:00 amBTR - STL
1 stop4h 52mUnited Airlines
dom 9/286:15 amSTL - BTR
1 stop6h 55mUnited Airlines
Deal found 9/10$279
This Delta deal was found by Cheapflights users on 9/9. 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.
qua 10/14:39 pmBTR - MDW
1 stop4h 57mDelta
qua 10/155:04 pmMDW - BTR
1 stop4h 43mDelta
Deal found 9/9$284
This Delta deal was found by Cheapflights users on 9/9. 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.
sex 10/247:00 pmBTR - ORD
1 stop4h 58mDelta
dom 10/265:20 amORD - BTR
1 stop4h 17mDelta
Deal found 9/9$284
This United Airlines deal was found by Cheapflights users on 9/11. 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.
sex 9/195:00 amBTR - STL
1 stop4h 57mUnited Airlines
sex 9/266:15 amSTL - BTR
1 stop6h 55mUnited Airlines
Deal found 9/11$284
This United Airlines deal was found by Cheapflights users on 9/11. 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.
sex 9/193:52 pmBTR - STL
1 stop6h 16mUnited Airlines
qui 9/255:00 amSTL - BTR
2 stops10h 24mUnited Airlines
Deal found 9/11$289
This United Airlines deal was found by Cheapflights users on 9/10. 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.
qua 10/85:00 amBTR - STL
1 stop4h 52mUnited Airlines
seg 10/208:25 amSTL - BTR
1 stop6h 59mUnited Airlines
Deal found 9/10$304

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 setembro 11, 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

sex 11/14

6:50 pm-11:32 pm

1 stop4h 42m

Chicago Midway

seg 11/17

10:47 am-5:59 pm

1 stop7h 12m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

qui 11/13

5:27 pm-11:40 pm

1 stop6h 13m

Chicago O'Hare Intl

sáb 11/15

6:35 pm-11:56 pm

1 stop5h 21m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

sex 11/14

6:50 pm-12:01 am

1 stop5h 11m

Chicago O'Hare Intl

seg 11/17

1:00 pm-5:59 pm

1 stop4h 59m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

sáb 2/14

1:40 pm-7:29 pm

1 stop5h 49m

Chicago O'Hare Intl

ter 2/17

5:50 am-12:54 pm

1 stop7h 04m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

sex 10/24

7:00 pm-11:58 pm

1 stop4h 58m

Chicago O'Hare Intl

dom 10/26

5:20 am-9:37 am

1 stop4h 17m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

sex 10/24

7:00 pm-11:58 pm

1 stop4h 58m

Chicago O'Hare Intl

ter 10/28

5:20 am-12:26 pm

1 stop7h 06m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

qui 9/25

6:50 pm-11:54 pm

1 stop5h 04m

Chicago O'Hare Intl

seg 9/29

5:31 pm-10:12 pm

1 stop4h 41m

$259

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

sex 11/7

3:40 pm-9:38 pm

1 stop5h 58m

Lambert-St Louis

dom 11/9

7:05 am-1:35 pm

1 stop6h 30m

$274

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

qui 9/25

5:00 am-9:52 am

1 stop4h 52m

Lambert-St Louis

dom 9/28

6:15 am-1:10 pm

1 stop6h 55m

$279

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

sex 9/26

2:00 pm-6:57 pm

1 stop4h 57m

Lambert-St Louis

dom 9/28

6:15 am-1:10 pm

1 stop6h 55m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 53 results
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2
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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 setembro 11, 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.

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 setembro 11, 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
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

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.

  • 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 42m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. The distance from Baton Rouge to Illinois is about 800 mi. This flight may include one or multiple stops.

  • 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 $169 on Delta. Other airlines that offer cheap prices include United Airlines from $274 and American Airlines from $274 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 - 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, 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

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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 setembro 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$348FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$388FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$623FlexibilityNo cancel feeOn-time69%

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