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$73+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$161
(Kiwi.com)

One-way from

$73
(Priceline)

Popular in

May

Cheapest in

November

Average price

$357

Good round-trip deal

$240 or less

Good one-way deal

$208 or less
From Lambert-St Louis to Louisiana
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One-way flight from Lambert-St Louis to Louisiana
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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Louisiana.
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Price to beat on a one-way flight from Lambert-St Louis to Louisiana.
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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 August 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/64:00 pmSTL - MSY
1 stop16h 33mMultiple Airlines
Wed 10/86:50 pmMSY - STL
1 stop15h 47mMultiple Airlines
Deal found 8/18$161
This Priceline deal was found by Cheapflights users on 8/18. 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 11/611:07 amSTL - MSY
1 stop5h 53mMultiple Airlines
Sun 11/95:10 amMSY - STL
1 stop5h 51mMultiple Airlines
Deal found 8/18$169
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/64:00 pmSTL - MSY
1 stop16h 33mMultiple Airlines
Thu 10/910:04 pmMSY - STL
1 stop12h 33mMultiple Airlines
Deal found 8/18$170
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:57 amSTL - MSY
1 stop7h 53mSpirit Airlines
Sat 10/256:30 amMSY - STL
1 stop11h 15mSpirit Airlines
Deal found 8/19$171
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/710:57 amSTL - MSY
1 stop7h 53mMultiple Airlines
Wed 10/86:50 pmMSY - STL
1 stop15h 47mMultiple Airlines
Deal found 8/18$176
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:00 pmSTL - MSY
1 stop13h 07mSpirit Airlines
Sat 10/256:30 amMSY - STL
1 stop11h 15mSpirit Airlines
Deal found 8/19$177
This FlightHub deal was found by Cheapflights users on 8/18. 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.
Sun 9/284:00 pmSTL - MSY
1 stop23h 57mMultiple Airlines
Wed 10/18:19 pmMSY - STL
1 stop13h 21mMultiple Airlines
Deal found 8/18$180
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sun 10/510:57 amSTL - MSY
1 stop7h 53mMultiple Airlines
Wed 10/86:50 pmMSY - STL
1 stop15h 47mMultiple Airlines
Deal found 8/18$182
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/710:57 amSTL - MSY
1 stop7h 53mMultiple Airlines
Thu 10/910:04 pmMSY - STL
1 stop12h 33mMultiple Airlines
Deal found 8/18$185
This FlightHub deal was found by Cheapflights users on 8/18. 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.
Thu 11/611:07 amSTL - MSY
1 stop5h 53mFrontier
Mon 11/107:45 pmMSY - STL
1 stop13h 22mFrontier
Deal found 8/18$186
This FlightHub deal was found by Cheapflights users on 8/19. 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.
Thu 10/210:35 amSTL - MSY
1 stop10h 19mSpirit Airlines
Mon 10/66:30 amMSY - STL
1 stop27h 32mSpirit Airlines
Deal found 8/19$187
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Sun 9/2810:35 amSTL - MSY
1 stop13h 17mSpirit Airlines
Wed 10/18:19 pmMSY - STL
1 stop13h 21mSpirit Airlines
Deal found 8/18$189

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 August 20, 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

Mon 10/6

4:00 pm-8:33 am

1 stop16h 33m

New Orleans Louis Armstrong

Wed 10/8

6:50 pm-10:37 am

1 stop15h 47m

$161

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 11/6

11:07 am-5:00 pm

1 stop5h 53m

New Orleans Louis Armstrong

Sun 11/9

5:10 am-11:01 am

1 stop5h 51m

$169

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 10/6

4:00 pm-8:33 am

1 stop16h 33m

New Orleans Louis Armstrong

Thu 10/9

10:04 pm-10:37 am

1 stop12h 33m

$170

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 10/21

10:57 am-6:50 pm

1 stop7h 53m

New Orleans Louis Armstrong

Sat 10/25

6:30 am-5:45 pm

1 stop11h 15m

$171

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 10/7

10:57 am-6:50 pm

1 stop7h 53m

New Orleans Louis Armstrong

Wed 10/8

6:50 pm-10:37 am

1 stop15h 47m

$176

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 10/18

7:00 pm-8:07 am

1 stop13h 07m

New Orleans Louis Armstrong

Sat 10/25

6:30 am-5:45 pm

1 stop11h 15m

$177

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 9/28

4:00 pm-3:57 pm

1 stop23h 57m

New Orleans Louis Armstrong

Wed 10/1

8:19 pm-9:40 am

1 stop13h 21m

$180

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 10/5

10:57 am-6:50 pm

1 stop7h 53m

New Orleans Louis Armstrong

Wed 10/8

6:50 pm-10:37 am

1 stop15h 47m

$182

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 10/7

10:57 am-6:50 pm

1 stop7h 53m

New Orleans Louis Armstrong

Thu 10/9

10:04 pm-10:37 am

1 stop12h 33m

$185

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 11/6

11:07 am-5:00 pm

1 stop5h 53m

New Orleans Louis Armstrong

Mon 11/10

7:45 pm-9:07 am

1 stop13h 22m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 41 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, August is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $256). Flying from St. Louis to Louisiana in April is currently the most expensive (average of $343). 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 August 20, 2025.

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

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 August 20, 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
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,928 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,207 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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, 4 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 53m. 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), Spirit Airlines ($84), and United Airlines ($374).

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

    While some choose either Lambert-St Louis - Baton Rouge Ryan or Lambert-St Louis - Lafayette Regional, 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 $379, our data indicates the cheapest price to be $108. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $161.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $256). Flying from St. Louis to Louisiana in April is currently the most expensive (average of $343). 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 6 airlines flying from St. Louis to Louisiana

Discover the top 6 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$223FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$187Average$266FlexibilityNo cancel feeOn-time65%
DeltaCheapest$196Average$300FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$351FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$212Average$415FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$241Average$416FlexibilityNo cancel feeOn-time63%

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