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$73+ Cheap flights from Louisiana 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ORD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Louisiana to Illinois

Keep the following information in mind while searching for Louisiana to Illinois flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Cheapflightsfares)

One-way from

$73
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$215

Good round-trip deal

$208 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for New Orleans Louis Armstrong-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Chicago (CHI) flights.
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From Louisiana to Illinois
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One-way flight from Louisiana to Illinois
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Highest demand for flights based on searches. 16% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Louisiana to Illinois.
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Price to beat on a one-way flight from Louisiana to Illinois.
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Find flight deals from Louisiana to Illinois

Cheapest flights from Louisiana to Illinois
Explore the most affordable flight options available from Louisiana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1410:23 pmMSY - ORD
1 stop26h 36mSpirit Airlines
Sun 3/167:48 amORD - MSY
Nonstop2h 27mSpirit Airlines
Deal found 2/19$97
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:26 pmMSY - ORD
Nonstop2h 36mMultiple Airlines
Thu 4/109:20 amORD - MSY
1 stop6h 48mMultiple Airlines
Deal found 2/19$114
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/87:39 pmMSY - MDW
1 stop27h 40mFrontier
Mon 3/106:40 amMDW - MSY
1 stop13h 27mFrontier
Deal found 2/19$130
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/207:44 pmMSY - ORD
1 stop29h 00mFrontier
Thu 3/279:25 amORD - MSY
1 stop28h 45mFrontier
Deal found 2/20$148
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/207:44 pmMSY - STL
1 stop13h 32mFrontier
Thu 3/275:24 pmSTL - MSY
1 stop20h 46mFrontier
Deal found 2/20$158
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/164:20 pmMSY - STL
1 stop24h 56mMultiple Airlines
Sat 4/196:51 pmSTL - MSY
1 stop24h 00mMultiple Airlines
Deal found 2/20$180
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:50 amMSY - MDW
Nonstop2h 20mSouthwest
Mon 3/312:55 pmMDW - MSY
Nonstop2h 20mSouthwest
Deal found 2/19$188
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.
Thu 4/311:14 amMSY - ORD
1 stop4h 57mDelta
Tue 4/87:05 amORD - MSY
1 stop7h 20mDelta
Deal found 2/19$217
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/135:00 amMSY - ORD
2 stops8h 05mSouthwest
Mon 3/174:00 pmORD - MSY
1 stop8h 30mSouthwest
Deal found 2/19$222
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.
Mon 3/2411:14 amMSY - MDW
1 stop6h 48mDelta
Wed 3/269:25 amMDW - MSY
1 stop6h 50mDelta
Deal found 2/19$228
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.
Tue 4/17:00 amMSY - ORD
Nonstop2h 40mUnited Airlines
Sat 4/127:55 pmORD - MSY
Nonstop2h 35mUnited Airlines
Deal found 2/19$230
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/73:24 pmSHV - STL
1 stop4h 37mDelta
Tue 3/111:06 pmSTL - SHV
1 stop7h 17mDelta
Deal found 2/20$234

Find flights from Louisiana to Illinois within your budget

Customize your flight search to find flights from Louisiana 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 February 20, 2025.

Fly from

Louisiana

Fly to

Illinois

Route

Depart

Return

Price

New OrleansChicago

MSY - ORD

MSYORD

New Orleans Louis Armstrong

Fri 3/14

10:23 pm-12:59 am

1 stop26h 36m

Chicago O'Hare Intl

Sun 3/16

7:48 am-10:15 am

Nonstop2h 27m

$97

New OrleansChicago

MSY - ORD

MSYORD

New Orleans Louis Armstrong

Tue 4/1

6:26 pm-9:02 pm

Nonstop2h 36m

Chicago O'Hare Intl

Thu 4/10

9:20 am-4:08 pm

1 stop6h 48m

$114

New OrleansChicago

MSY - MDW

MSYMDW

New Orleans Louis Armstrong

Sat 3/8

7:39 pm-11:19 pm

1 stop27h 40m

Chicago Midway

Mon 3/10

6:40 am-8:07 pm

1 stop13h 27m

$130

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 3/20

7:44 pm-9:16 am

1 stop13h 32m

Lambert-St Louis

Thu 3/27

5:24 pm-2:10 pm

1 stop20h 46m

$158

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 4/16

4:20 pm-5:16 pm

1 stop24h 56m

Lambert-St Louis

Sat 4/19

6:51 pm-6:51 pm

1 stop24h 00m

$180

New OrleansChicago

MSY - MDW

MSYMDW

New Orleans Louis Armstrong

Wed 3/26

6:50 am-9:10 am

Nonstop2h 20m

Chicago Midway

Mon 3/31

2:55 pm-5:15 pm

Nonstop2h 20m

$188

New OrleansChicago

MSY - ORD

MSYORD

New Orleans Louis Armstrong

Thu 4/3

11:14 am-6:19 pm

1 stop7h 05m

Chicago O'Hare Intl

Mon 4/7

10:25 am-4:08 pm

1 stop5h 43m

$217

New OrleansChicago

MSY - ORD

MSYORD

New Orleans Louis Armstrong

Thu 3/13

5:00 am-1:05 pm

2 stops8h 05m

Chicago O'Hare Intl

Mon 3/17

4:00 pm-12:30 am

1 stop8h 30m

$222

New OrleansChicago

MSY - MDW

MSYMDW

New Orleans Louis Armstrong

Mon 3/24

11:14 am-6:02 pm

1 stop6h 48m

Chicago Midway

Wed 3/26

9:25 am-4:15 pm

1 stop6h 50m

$228

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Fri 3/7

3:24 pm-8:01 pm

1 stop4h 37m

Lambert-St Louis

Tue 3/11

1:06 pm-8:23 pm

1 stop7h 17m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 59 results
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Best time to book a flight from Louisiana to Illinois

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

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

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

Currently, August is the cheapest month in which you can book a flight from Louisiana to Illinois (average of $245). Flying from Louisiana 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 LA to IL?

Find hourly flight availability from Louisiana 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 February 20, 2025.

When flying from Louisiana to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Louisiana to Illinois

Explore weekly flight availability from Louisiana to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2025.

The most flights from USLA to USIL are scheduled on a Thursday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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 February 20, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Louisiana to Illinois. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Allegiant Air
7.3
Good
765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Louisiana to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $73. Frontier flights start at $75 while deals on American Airlines start at $80 one-way.

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

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

  • How can I find direct flights from Louisiana to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Louisiana 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 Louisiana to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Louisiana to Illinois (average of $245). Flying from Louisiana 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 Louisiana to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Louisiana to Illinois

Discover the top 6 airlines that operate flights from Louisiana 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$47Average$163FlexibilityNo cancel feeOn-time65%
FrontierCheapest$59Average$93FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$154Average$450FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$157Average$396FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$180Average$335FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$402FlexibilityNo cancel feeOn-timeN/A
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