Louisiana

$65+ Cheap flights from St. Louis (STL) to Louisiana

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
May 15 — May 221
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Cheap flight deals from St. Louis to Louisiana

Cheapest flights from St. Louis to Louisiana
Explore the most affordable flight options available from St. Louis to Louisiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:33 pm
STL
-
MSY
1 stop21h 48m
Frontier
Tue 6/25:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/12$126
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:27 pm
STL
-
MSY
1 stop22h 54m
Frontier
Tue 5/195:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/14$133
This Priceline deal was found by Cheapflights users on 4/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:36 pm
STL
-
MSY
1 stop8h 15m
Frontier
Sat 5/95:18 pm
MSY
-
STL
1 stop7h 03m
Frontier
Deal found 4/10$140
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:33 pm
STL
-
MSY
1 stop21h 48m
Frontier
Fri 5/155:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/10$147
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:27 pm
STL
-
MSY
1 stop22h 54m
Frontier
Fri 6/55:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/14$153
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:27 pm
STL
-
MSY
1 stop22h 54m
Frontier
Thu 5/145:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/13$158
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:27 pm
STL
-
MSY
1 stop22h 59m
Frontier
Sun 5/245:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/10$159
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:27 pm
STL
-
MSY
1 stop15h 17m
Frontier
Sun 5/245:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 4/11$161
This Frontier deal was found by Cheapflights users on 4/13. 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 5/98:08 pm
STL
-
MSY
1 stop25h 02m
Frontier
Mon 5/114:25 pm
MSY
-
STL
1 stop7h 56m
Frontier
Deal found 4/13$162
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:08 pm
STL
-
MSY
1 stop25h 02m
Frontier
Sat 5/165:18 pm
MSY
-
STL
1 stop7h 03m
Frontier
Deal found 4/11$167
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 5/164:00 pm
STL
-
BTR
1 stop4h 30m
Delta
Sat 5/234:00 pm
BTR
-
STL
1 stop5h 38m
Delta
Deal found 4/14$305
This Delta deal was found by Cheapflights users on 4/14. 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 7/303:40 pm
STL
-
SHV
1 stop7h 32m
Delta
Mon 8/35:16 pm
SHV
-
STL
1 stop6h 37m
Delta
Deal found 4/14$309

Find flight deals from St. Louis to Louisiana

Keep the following information in mind while searching for St. Louis to Louisiana flight deals. Data was last updated April 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$126
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$380

Good round-trip deal

$339 or less

Good one-way deal

$207 or less
Provider with most accurate pricing for Lambert-St Louis-New Orleans Louis Armstrong flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-New Orleans Louis Armstrong flights.
From Lambert-St Louis to Louisiana
One-way flight from Lambert-St Louis to Louisiana
Highest demand for flights based on searches. 10% potential increase in price ($47 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Lambert-St Louis to Louisiana.
Price to beat on a one-way flight from Lambert-St Louis to Louisiana.

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Louisiana 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 April 15, 2026.
Use the filters below to find and compare flights from St. Louis to Louisiana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 5/13

8:55 pm-10:45 pm

Nonstop1h 50m

New Orleans Louis Armstrong

Thu 5/14

6:55 pm-8:50 pm

Nonstop1h 55m

$303

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 5/16

4:00 pm-8:30 pm

1 stop4h 30m

Baton Rouge Ryan

Sat 5/23

4:00 pm-9:38 pm

1 stop5h 38m

$305

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Fri 8/14

7:20 am-2:24 pm

1 stop7h 04m

Lafayette Regional

Sun 8/16

6:00 am-12:53 pm

1 stop6h 53m

$313

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 7/17

3:40 pm-9:56 pm

1 stop6h 16m

Baton Rouge Ryan

Mon 7/20

6:11 am-12:17 pm

1 stop6h 06m

$317

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Mon 6/15

1:39 pm-6:26 pm

1 stop4h 47m

Baton Rouge Ryan

Fri 6/19

7:06 pm-11:56 pm

1 stop4h 50m

$317

St. LouisAlexandria

STL - AEX

STLAEX

Lambert-St Louis

Tue 4/28

11:42 am-4:07 pm

1 stop4h 25m

Alexandria

Sat 5/2

6:08 am-11:56 am

1 stop5h 48m

$328

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 4/25

2:12 pm-9:25 pm

1 stop7h 13m

Baton Rouge Ryan

Wed 4/29

7:06 am-4:41 pm

2 stops9h 35m

$330

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 5/31

7:01 pm-11:54 pm

1 stop4h 53m

New Orleans Louis Armstrong

Thu 6/4

5:20 am-9:44 am

1 stop4h 24m

$332

St. LouisAlexandria

STL - AEX

STLAEX

Lambert-St Louis

Tue 4/28

5:20 am-9:37 am

1 stop4h 17m

Alexandria

Sat 5/2

10:07 am-10:17 pm

2 stops12h 10m

$334

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Tue 4/28

6:00 am-10:44 am

1 stop4h 44m

Lafayette Regional

Sat 5/2

6:05 am-10:34 am

1 stop4h 29m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 57 resultsSorted by cheapest first
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Best time to book a flight from St. Louis to Louisiana

Have a flexible travel schedule? Discover the best time to fly to Louisiana from St. Louis 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 St. Louis to Louisiana

What is the cheapest month to book a flight from St. Louis to Louisiana?

Currently, December is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $88). Flying from St. Louis to Louisiana in February is currently the most expensive (average of $338). 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 STL to LA?

Find hourly flight availability from St. Louis to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2026.

It’s optimal to fly from St. Louis to Louisiana at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from St. Louis to Louisiana?

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. 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 Louisiana. Reviews last updated April 15, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to Louisiana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Louisiana. 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 St. Louis to Louisiana?

    If you book a flight to Louisiana from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How popular is this St. Louis to Louisiana flight route?

  • How long is the flight from St. Louis to Louisiana?

    Departing from St. Louis to Louisiana will take you 1h 50m. There are 605 mi between St. Louis and Louisiana. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from St. Louis to Louisiana one-way?

    The cheapest airlines for a one-way flight from St. Louis to Louisiana are Frontier ($55), United Airlines ($98), and Southwest ($143).

  • What are the most popular routes from St. Louis to Louisiana?

  • What are the cheapest flights from St. Louis to Louisiana?

    Looking for the cheapest flight from St. Louis to Louisiana? While on average our users pay $340, our data indicates the cheapest price to be $151. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $167.

  • Can I find deals for flights from St. Louis to Louisiana that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Louisiana?

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

  • Can I find deals for business class flights from St. Louis to Louisiana?

    Yes. Cheapflights offers flight deals from St. Louis to Louisiana 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 St. Louis to Louisiana?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $88). Flying from St. Louis to Louisiana in February is currently the most expensive (average of $338). 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 St. Louis to Louisiana

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from St. Louis to Louisiana

Discover the top 5 airlines that operate flights from St. Louis to Louisiana. 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 April 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$93Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$380FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$318FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$240Average$411FlexibilityNo cancel feeOn-time63%

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