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$55+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Dec 7 — Dec 141
Sun 12/7
Sun 12/14
1 adult, Economy
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Find 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 November 7, 2025.

This Frontier deal was found by Cheapflights users on 11/4. 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.
Thu 12/43:30 pmSTL - MSY
1 stop21h 27mFrontier
Mon 12/81:52 pmMSY - STL
1 stop8h 41mFrontier
Deal found 11/4$111
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Wed 12/37:43 pmSTL - MSY
1 stop16h 41mFrontier
Sun 12/72:02 pmMSY - STL
1 stop18h 57mFrontier
Deal found 11/5$133
This Priceline deal was found by Cheapflights users on 11/6. 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 12/42:47 pmSTL - MSY
1 stop6h 55mMultiple Airlines
Thu 12/112:02 pmMSY - STL
1 stop8h 31mMultiple Airlines
Deal found 11/6$141
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:13 pmSTL - MSY
1 stop21h 32mFrontier
Mon 11/246:04 pmMSY - STL
1 stop24h 54mFrontier
Deal found 11/4$142
This Priceline deal was found by Cheapflights users on 11/5. 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.
Fri 12/510:42 amSTL - MSY
1 stop5h 45mFrontier
Sun 12/72:02 pmMSY - STL
1 stop8h 31mFrontier
Deal found 11/5$146
This Mytrip deal was found by Cheapflights users on 11/4. 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.
Fri 11/214:13 pmSTL - MSY
1 stop28h 16mFrontier
Sun 11/237:44 pmMSY - STL
1 stop14h 18mFrontier
Deal found 11/4$153
This Booking.com deal was found by Cheapflights users on 11/6. 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.
Sat 11/227:43 pmSTL - MSY
1 stop23h 06mFrontier
Wed 11/266:04 pmMSY - STL
1 stop24h 54mFrontier
Deal found 11/6$156
This Booking.com deal was found by Cheapflights users on 11/4. 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 12/43:30 pmSTL - MSY
1 stop21h 27mFrontier
Sun 12/72:02 pmMSY - STL
1 stop18h 57mFrontier
Deal found 11/4$158
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/214:13 pmSTL - MSY
1 stop28h 16mFrontier
Mon 11/246:04 pmMSY - STL
1 stop24h 54mFrontier
Deal found 11/4$162
This Trip.com deal was found by Cheapflights users on 11/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:13 pmSTL - MSY
1 stop21h 32mFrontier
Sun 11/237:44 pmMSY - STL
1 stop14h 18mFrontier
Deal found 11/6$167
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/1112:04 pmSTL - MSY
1 stop8h 34mMultiple Airlines
Sun 12/144:35 pmMSY - STL
1 stop17h 17mMultiple Airlines
Deal found 11/5$170
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 12/2310:48 amSTL - MSY
1 stop5h 07mMultiple Airlines
Wed 12/246:55 pmMSY - STL
2 stops14h 45mMultiple Airlines
Deal found 11/6$175

Cheap 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 November 7, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$111
(Frontier)

One-way from

$55
(Priceline)

Popular in

May

Cheapest in

September

Average price

$307

Good round-trip deal

$383 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Lambert-St Louis-New Orleans Louis Armstrong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-New Orleans Louis Armstrong flights.
Search Deals
From Lambert-St Louis to Louisiana
Search Deals
One-way flight from Lambert-St Louis to Louisiana
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Louisiana.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Louisiana.
Search Deals

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 November 7, 2025.
Use the filters below to find and compare flights from St. Louis to Louisiana that are best for you.

Fly from

St. Louis

Fly to

Louisiana

Route

Depart

Return

Price

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 12/21

10:57 am-4:27 pm

1 stop5h 30m

New Orleans Louis Armstrong

Sun 12/28

8:14 am-9:45 am

1 stop25h 31m

$179

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 12/3

7:43 pm-1:07 pm

2 stops17h 24m

New Orleans Louis Armstrong

Sun 12/7

2:02 pm-8:59 am

1 stop18h 57m

$186

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Fri 1/9

7:43 pm-5:01 pm

2 stops21h 18m

New Orleans Louis Armstrong

Sun 1/11

1:58 pm-10:33 pm

1 stop8h 35m

$189

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 12/11

12:04 pm-8:38 pm

1 stop8h 34m

New Orleans Louis Armstrong

Mon 12/15

5:22 pm-10:33 pm

2 stops29h 11m

$190

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 11/23

3:14 pm-6:19 pm

2 stops27h 05m

New Orleans Louis Armstrong

Mon 12/1

8:54 am-11:57 pm

1 stop15h 03m

$223

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 2/1

10:42 am-5:16 pm

1 stop6h 34m

New Orleans Louis Armstrong

Sun 2/8

6:00 am-10:02 am

2 stops28h 02m

$236

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Fri 1/23

11:55 am-6:01 pm

1 stop6h 06m

Lafayette Regional

Mon 1/26

10:30 am-4:14 pm

1 stop5h 44m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 12/4

7:05 am-1:36 pm

1 stop6h 31m

Baton Rouge Ryan

Sun 12/7

6:07 am-10:45 am

1 stop4h 38m

$249

St. LouisShreveport

STL - SHV

STLSHV

Lambert-St Louis

Thu 11/20

6:00 am-10:14 am

1 stop4h 14m

Shreveport

Mon 11/24

4:59 pm-9:58 pm

1 stop4h 59m

$259

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Wed 2/4

7:10 am-1:52 pm

1 stop6h 42m

Lafayette Regional

Mon 2/9

5:15 pm-11:39 pm

1 stop6h 24m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 47 results
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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, January is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $151). Flying from St. Louis to Louisiana in February is currently the most expensive (average of $258). 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 November 7, 2025.

It’s optimal to fly from St. Louis to Louisiana in the morning. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from St. Louis to Louisiana?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Louisiana. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Louisiana flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 7, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,115 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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?

    Within the past month, 3 users have taken a look at flights from Lambert-St Louis to Louisiana.

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

    Departing from St. Louis to Louisiana will take you 5h 30m. 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 ($73), American Airlines ($90), and United Airlines ($244).

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

    While some choose either Lambert-St Louis - Lafayette Regional or Lambert-St Louis - Shreveport, Lambert-St Louis - New Orleans Louis Armstrong is the most popular route 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 $320, our data indicates the cheapest price to be $148. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $140.

  • 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, January is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $151). Flying from St. Louis to Louisiana in February is currently the most expensive (average of $258). 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.
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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 November 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$227FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$186Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$426FlexibilityNo cancel feeOn-time69%
DeltaCheapest$196Average$303FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$240Average$414FlexibilityNo cancel feeOn-time63%

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