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Cheap flights from Louisiana to Illinois from $65

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisiana to Illinois departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Louisiana to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:21 pm - 8:55 am
MSY
-
STL
15h 34m
1 stop
Frontier Logo
6:33 pm - 4:21 pm
STL
-
MSY
21h 48m
1 stop
$128Frontier
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
5:21 pm - 8:55 am
MSY
-
STL
15h 34m
1 stop
Frontier Logo
6:33 pm - 4:21 pm
STL
-
MSY
21h 48m
1 stop
$154Frontier
Thu, Jun 4 - Sun, Jun 7
American Airlines Logo
5:27 pm - 11:59 pm
LFT
-
STL
6h 32m
1 stop
American Airlines Logo
7:21 pm - 11:57 pm
STL
-
LFT
4h 36m
1 stop
$283American Airlines
Sat, Jun 13 - Sat, Jun 20
United Airlines Logo
5:20 am - 2:18 pm
LFT
-
STL
8h 58m
2 stops
United Airlines Logo
8:50 am - 1:19 pm
STL
-
LFT
4h 29m
1 stop
$288United Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
5:03 pm - 11:53 pm
LFT
-
STL
6h 50m
1 stop
Delta Logo
9:24 am - 4:23 pm
STL
-
LFT
6h 59m
1 stop
$293Delta
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
5:27 pm - 11:59 pm
LFT
-
STL
6h 32m
1 stop
American Airlines Logo
5:30 am - 10:21 am
STL
-
LFT
4h 51m
1 stop
$296American Airlines
Sat, Jun 13 - Fri, Jun 19
Delta Logo
4:00 pm - 10:17 pm
BTR
-
MDW
6h 17m
1 stop
Delta Logo
6:00 am - 12:47 pm
MDW
-
BTR
6h 47m
1 stop
$303Delta
Wed, Jun 24 - Wed, Jul 1
United Airlines Logo
3:35 pm - 11:15 pm
SHV
-
ORD
7h 40m
1 stop
United Airlines Logo
5:45 pm - 10:44 pm
ORD
-
SHV
4h 59m
1 stop
$339United Airlines
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
2:50 pm - 7:55 am
SHV
-
ORD
41h 05m
2 stops
Multiple Airlines Logo
5:11 pm - 7:18 am
ORD
-
SHV
14h 07m
1 stop
$348Multiple Airlines
Sun, May 31 - Wed, Jun 3
Multiple Airlines Logo
8:00 am - 7:00 pm
MSY
-
RFD
11h 00m
1 stop
Multiple Airlines Logo
7:50 pm - 11:59 am
RFD
-
MSY
16h 09m
1 stop
$349Multiple Airlines
Fri, Jul 10 - Mon, Jul 13

Frontier flights from Louisiana to Illinois

Our best Frontier deals on Louisiana to Illinois flight tickets
Frontier
Jun 4
MSY5:21 pmNew Orleans Louis Armstrong
15h 34m
1 stop
STL8:55 amLambert-St Louis
Jun 7
STL6:33 pmLambert-St Louis
21h 48m
1 stop
MSY4:21 pmNew Orleans Louis Armstrong
$128
Frontier
Jun 4
MSY5:21 pmNew Orleans Louis Armstrong
15h 34m
1 stop
STL8:55 amLambert-St Louis
Jun 7
STL6:33 pmLambert-St Louis
21h 48m
1 stop
MSY4:21 pmNew Orleans Louis Armstrong
$154
Frontier
Jun 4
MSY5:21 pmNew Orleans Louis Armstrong
15h 34m
1 stop
STL8:55 amLambert-St Louis
Jun 7
STL6:33 pmLambert-St Louis
21h 48m
1 stop
MSY4:21 pmNew Orleans Louis Armstrong
$183

Delta flights from Louisiana to Illinois

Our best Delta deals on Louisiana to Illinois flight tickets
Delta
Jul 7
LFT5:03 pmLafayette Regional
6h 50m
1 stop
STL11:53 pmLambert-St Louis
Jul 14
STL9:24 amLambert-St Louis
6h 59m
1 stop
LFT4:23 pmLafayette Regional
$293
Delta
Jun 13
BTR4:07 pmBaton Rouge Ryan
4h 52m
1 stop
ORD8:59 pmChicago O'Hare Intl
Jun 16
ORD6:35 amChicago O'Hare Intl
6h 12m
1 stop
BTR12:47 pmBaton Rouge Ryan
$303
Delta
Jun 23
BTR7:06 pmBaton Rouge Ryan
4h 50m
1 stop
STL11:56 pmLambert-St Louis
Jun 30
STL3:57 pmLambert-St Louis
5h 58m
1 stop
BTR9:55 pmBaton Rouge Ryan
$305

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Louisiana to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 6/4

5:21 pm-8:55 am

1 stop15h 34m

Lambert-St Louis

Sun 6/7

6:33 pm-4:21 pm

1 stop21h 48m

$128

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 6/4

5:21 pm-8:55 am

1 stop15h 34m

Lambert-St Louis

Sun 6/7

6:33 pm-4:21 pm

1 stop21h 48m

$154
Quickest round-trip

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Sat 6/13

5:27 pm-11:59 pm

1 stop6h 32m

Lambert-St Louis

Sat 6/20

7:21 pm-11:57 pm

1 stop4h 36m

$283

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Sat 10/24

5:20 am-2:18 pm

2 stops8h 58m

Lambert-St Louis

Wed 10/28

8:50 am-1:19 pm

1 stop4h 29m

$288

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Tue 7/7

5:03 pm-11:53 pm

1 stop6h 50m

Lambert-St Louis

Tue 7/14

9:24 am-4:23 pm

1 stop6h 59m

$293

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Sat 6/13

5:27 pm-11:59 pm

1 stop6h 32m

Lambert-St Louis

Fri 6/19

5:30 am-10:21 am

1 stop4h 51m

$296

Baton RougeChicago

BTR - MDW

BTRMDW

Baton Rouge Ryan

Wed 6/24

4:00 pm-10:17 pm

1 stop6h 17m

Chicago Midway

Wed 7/1

6:00 am-12:47 pm

1 stop6h 47m

$303

ShreveportChicago

SHV - ORD

SHVORD

Shreveport

Sat 5/23

3:35 pm-11:15 pm

1 stop7h 40m

Chicago O'Hare Intl

Wed 5/27

5:45 pm-10:44 pm

1 stop4h 59m

$339

ShreveportChicago

SHV - ORD

SHVORD

Shreveport

Sun 5/31

2:50 pm-7:55 am

2 stops41h 05m

Chicago O'Hare Intl

Wed 6/3

5:11 pm-7:18 am

1 stop14h 07m

$348

New OrleansChicago

MSY - RFD

MSYRFD

New Orleans Louis Armstrong

Fri 7/10

8:00 am-7:00 pm

1 stop11h 00m

Chicago Greater Rockford

Mon 7/13

7:50 pm-11:59 am

1 stop16h 09m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Louisiana to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Louisiana is in February. Flight prices, which tend to average around $18, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $50.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Louisiana to Illinois is on a Friday when prices can be found for as low as $332. Flights from Louisiana to Illinois on a Sunday will generally be more expensive and average around $619. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Louisiana to Illinois during this time can be as low as $115. Flights at noon are often more expensive with an average ticket price of $508.

What is the cheapest Louisiana to Illinois flight route?

Fly from New Orleans Louis Armstrong to Chicago O'Hare Intl for the best Louisiana - Illinois flight prices

How far in advance should I book a flight from Louisiana to Illinois?

You are more likely to see cheaper flights to Illinois from Louisiana when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $255 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Louisiana for as low as $202 on momondo.

Can stopping save me money on Louisiana to Illinois flights?

No. A direct flight is the cheapest option for a flight between Louisiana to Illinois.

Cheap Louisiana to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisiana to Illinois

Best Price Found

$199

Fastest flight time

1h 45m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Louisiana in the past 72 hours is $199. The best round-trip flight deal from Louisiana to Illinois found on momondo in the last 72 hours is $297.
The fastest flight from Louisiana to Illinois takes 1h 45m
Direct flights go from Louisiana to Illinois every day.
There are 98 airports in Illinois. From Louisiana there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Louisiana to Illinois

  • When did momondo last update prices for flights from Louisiana to Illinois?

    Prices for flights from Louisiana to Illinois are updated daily.

  • How many operators does momondo search for flights from Louisiana to Illinois?

  • How old do you have to be to fly from Louisiana to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisiana to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Louisiana to Illinois?

Best airlines flying from Louisiana to Illinois

Compare and see reviews for airlines that fly from Louisiana to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $18Free CancellationRating
5.6
2,952 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $78Free CancellationRating
6.3
8,633 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $133Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights
American AirlinesPriceFrom $163Free CancellationRating
7.1
11,661 reviews
Search American Airlines flights
SouthwestPriceFrom $173Free CancellationRating
8.0
4,295 reviews
Search Southwest flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,447 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisiana to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisiana to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Louisiana to Illinois with flexible booking policies on momondo?

All flight searches from Louisiana to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisiana to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Louisiana. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisiana to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Louisiana to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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