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$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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ORD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$159
(Delta)

Popular in

March

Cheapest in

February

Average price

$263
Provider with most accurate pricing for Baton Rouge Ryan-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Baton Rouge Ryan-Chicago (CHI) flights.
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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. 7% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/18. 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.
jue. 4/245:20 amBTR - ORD
1 stop5h 47mAmerican Airlines
mar. 4/2910:37 amORD - BTR
1 stop7h 15mAmerican Airlines
Deal found 2/18$249
This Delta deal was found by Cheapflights users on 2/19. 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. 3/207:35 amBTR - MDW
1 stop4h 31mDelta
mié. 3/264:59 pmMDW - BTR
1 stop5h 23mDelta
Deal found 2/19$284
This United Airlines deal was found by Cheapflights users on 2/18. 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. 4/105:00 amBTR - ORD
1 stop5h 11mUnited Airlines
dom. 4/135:15 amORD - BTR
1 stop5h 57mUnited Airlines
Deal found 2/18$285
This Delta deal was found by Cheapflights users on 2/19. 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.
lun. 2/245:45 pmBTR - ORD
1 stop6h 04mDelta
lun. 3/37:05 amORD - BTR
1 stop6h 31mDelta
Deal found 2/19$334
This Delta deal was found by Cheapflights users on 2/19. 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. 6/51:40 pmBTR - STL
1 stop4h 21mDelta
sáb. 6/74:00 pmSTL - BTR
1 stop6h 01mDelta
Deal found 2/19$339
This United Airlines deal was found by Cheapflights users on 2/19. 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. 6/59:45 amBTR - STL
1 stop7h 08mUnited Airlines
sáb. 6/75:00 amSTL - BTR
2 stops10h 21mUnited Airlines
Deal found 2/19$460
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/284:56 pmBTR - STL
1 stop5h 47mAmerican Airlines
dom. 3/29:38 amSTL - BTR
1 stop6h 21mAmerican Airlines
Deal found 2/20$794

Find flights from Baton Rouge to Illinois within your budget

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 febrero 20, 2025.

Fly from

Baton Rouge

Fly to

Illinois

Route

Depart

Return

Price

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

jue. 4/24

5:20 am-11:07 am

1 stop5h 47m

Chicago O'Hare Intl

mar. 4/29

10:37 am-5:52 pm

1 stop7h 15m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

mié. 3/19

4:45 pm-11:56 pm

1 stop7h 11m

Lambert-St Louis

mié. 3/26

1:51 pm-9:59 pm

1 stop8h 08m

$249

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

jue. 3/20

7:35 am-12:06 pm

1 stop4h 31m

Chicago Midway

mié. 3/26

4:59 pm-10:22 pm

1 stop5h 23m

$284

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

jue. 4/10

5:00 am-10:11 am

1 stop5h 11m

Chicago O'Hare Intl

dom. 4/13

5:15 am-11:12 am

1 stop5h 57m

$285

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

mié. 3/19

5:06 am-2:23 pm

2 stops9h 17m

Lambert-St Louis

mié. 3/26

6:30 am-3:50 pm

2 stops9h 20m

$330

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

jue. 6/5

1:40 pm-6:01 pm

1 stop4h 21m

Lambert-St Louis

sáb. 6/7

4:00 pm-10:01 pm

1 stop6h 01m

$339

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

jue. 4/24

5:45 pm-11:59 pm

1 stop6h 14m

Chicago O'Hare Intl

mar. 4/29

3:30 pm-7:49 pm

1 stop4h 19m

$498

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

vie. 3/28

5:06 am-9:51 am

1 stop4h 45m

$160

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

mar. 5/20

1:40 pm-6:00 pm

1 stop4h 20m

$169

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

mar. 5/20

4:29 pm-11:57 pm

1 stop7h 28m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 13 results
1
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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.

Travel insights for flights from Baton Rouge to Illinois

Get recent, data-driven insights about flights from Baton Rouge to Illinois including ideal travel times, pricing trends, and more.

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 febrero 20, 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 febrero 20, 2025.
To help decide which airline to fly from Baton Rouge to Illinois, see what other customers have to say about Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $159 on Delta. Other airlines that offer cheap prices include United Airlines from $160 and American Airlines from $204 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$435FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$493FlexibilityNo cancel feeOn-time69%
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