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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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Baton Rouge to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Baton Rouge (BTR) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$249
(Delta)

One-way from

$169
(Delta)
From Baton Rouge Ryan to Illinois
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One-way flight from Baton Rouge Ryan to Illinois
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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 January 21, 2025.

This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2110:30 amBTR - MDW
1 stop5h 50mDelta
Sun 2/236:00 amMDW - BTR
1 stop7h 36mDelta
Deal found 1/20$249
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2110:30 amBTR - ORD
1 stop5h 15mDelta
Sun 2/237:05 amORD - BTR
1 stop6h 31mDelta
Deal found 1/20$249
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/42:18 pmBTR - MLI
1 stop7h 11mAmerican Airlines
Sat 2/84:33 pmMLI - BTR
1 stop5h 22mAmerican Airlines
Deal found 1/20$259
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/47:35 amBTR - STL
1 stop4h 11mDelta
Sat 2/811:04 amSTL - BTR
1 stop5h 56mDelta
Deal found 1/20$259
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/49:30 amBTR - STL
1 stop5h 07mUnited Airlines
Sat 2/89:44 amSTL - BTR
2 stops10h 01mUnited Airlines
Deal found 1/20$264
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 1/297:12 amBTR - STL
1 stop5h 33mAmerican Airlines
Wed 2/55:40 amSTL - BTR
2 stops10h 22mAmerican Airlines
Deal found 1/20$294
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 2/149:45 amBTR - ORD
2 stops11h 47mUnited Airlines
Sun 2/165:45 amORD - BTR
1 stop5h 31mUnited Airlines
Deal found 1/19$324
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 1/214:32 pmBTR - ORD
1 stop7h 37mAmerican Airlines
Tue 1/2810:00 amORD - BTR
1 stop5h 52mAmerican Airlines
Deal found 1/20$334
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 2/47:15 amBTR - PIA
2 stops7h 43mUnited Airlines
Sat 2/810:54 amPIA - BTR
2 stops8h 51mUnited Airlines
Deal found 1/19$339
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/3112:01 pmBTR - MLI
2 stops28h 46mUnited Airlines
Fri 4/45:25 pmMLI - BTR
2 stops24h 47mUnited Airlines
Deal found 1/21$573

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Fri 2/21

10:30 am-4:20 pm

1 stop5h 50m

Chicago Midway

Sun 2/23

6:00 am-1:36 pm

1 stop7h 36m

$249

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 2/21

10:30 am-3:45 pm

1 stop5h 15m

Chicago O'Hare Intl

Sun 2/23

7:05 am-1:36 pm

1 stop6h 31m

$249

Baton RougeMoline

BTR - MLI

BTRMLI

Baton Rouge Ryan

Tue 2/4

2:18 pm-9:29 pm

1 stop7h 11m

Moline Quad-City

Sat 2/8

4:33 pm-9:55 pm

1 stop5h 22m

$259

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 2/4

7:35 am-11:46 am

1 stop4h 11m

Lambert-St Louis

Sat 2/8

11:04 am-5:00 pm

1 stop5h 56m

$259

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 2/4

9:30 am-2:37 pm

1 stop5h 07m

Lambert-St Louis

Sat 2/8

9:44 am-7:45 pm

2 stops10h 01m

$264

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 2/27

7:22 am-12:59 pm

1 stop5h 37m

Lambert-St Louis

Tue 3/4

5:45 am-3:59 pm

2 stops10h 14m

$299

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Fri 2/14

9:45 am-9:32 pm

2 stops11h 47m

Chicago O'Hare Intl

Sun 2/16

5:45 am-11:16 am

1 stop5h 31m

$324

Baton RougePeoria

BTR - PIA

BTRPIA

Baton Rouge Ryan

Tue 2/4

7:15 am-2:58 pm

2 stops7h 43m

Greater Peoria

Sat 2/8

10:54 am-7:45 pm

2 stops8h 51m

$339

Baton RougeChicago

BTR - ORD

BTRORD

Baton Rouge Ryan

Wed 3/5

4:33 pm-11:52 pm

1 stop7h 19m

Chicago O'Hare Intl

Fri 3/7

8:05 am-4:14 pm

1 stop8h 09m

$477

Baton RougeMoline

BTR - MLI

BTRMLI

Baton Rouge Ryan

Mon 3/31

12:01 pm-4:47 pm

2 stops28h 46m

Moline Quad-City

Fri 4/4

5:25 pm-6:12 pm

2 stops24h 47m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 18 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 $320). 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 January 21, 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 January 21, 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
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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 $169 on Delta. Other airlines that offer cheap prices include American Airlines from $239 and United Airlines from $255 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 $320). 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$440FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$336FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$476FlexibilityNo cancel feeOn-time69%
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