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$95+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
mai 6 — mai 131
ti. 5/6
ti. 5/13
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 mai 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$95
(American Airlines)

Popular in

October

Cheapest in

August

Average price

$378

Good round-trip deal

$367 or less

Good one-way deal

$197 or less
Provider with most accurate pricing for Lambert-St Louis-New Orleans Louis Armstrong flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-New Orleans Louis Armstrong flights.
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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. 1% potential increase in price ($6 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 May 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 mai 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 6/26:57 pmSTL - MSY
1 stop5h 09mAmerican Airlines
to. 6/56:32 pmMSY - STL
1 stop5h 27mAmerican Airlines
Deal found 4/29$189
This Booking.com deal was found by Cheapflights users on 4/29. 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.
lø. 5/175:45 pmSTL - MSY
1 stop17h 35mFrontier
sø. 5/187:50 pmMSY - STL
1 stop13h 19mFrontier
Deal found 4/29$228
This Delta deal was found by Cheapflights users on 4/28. 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.
on. 5/216:00 amSTL - BTR
1 stop7h 08mDelta
lø. 5/244:37 pmBTR - STL
1 stop4h 02mDelta
Deal found 4/28$233
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 6/75:37 amSTL - LFT
1 stop4h 41mAmerican Airlines
lø. 6/145:05 pmLFT - STL
1 stop6h 14mAmerican Airlines
Deal found 4/30$249
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti. 5/275:19 amSTL - BTR
1 stop4h 42mAmerican Airlines
ti. 6/34:32 pmBTR - STL
1 stop4h 54mAmerican Airlines
Deal found 4/29$249
This Delta deal was found by Cheapflights users on 4/30. 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.
sø. 5/256:00 amSTL - MSY
1 stop5h 41mDelta
on. 5/287:46 amMSY - STL
1 stop4h 18mDelta
Deal found 4/30$281
This Southwest deal was found by Cheapflights users on 4/29. 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.
ma. 5/265:25 pmSTL - MSY
Nonstop1h 45mSouthwest
on. 5/286:00 pmMSY - STL
Nonstop1h 50mSouthwest
Deal found 4/29$288
This Mytrip deal was found by Cheapflights users on 4/30. 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.
to. 5/2910:10 amSTL - MSY
1 stop9h 00mMultiple Airlines
ma. 6/211:34 amMSY - STL
2 stops24h 11mMultiple Airlines
Deal found 4/30$302
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
lø. 8/97:37 pmSTL - MSY
1 stop11h 21mSpirit Airlines
to. 8/147:53 amMSY - STL
1 stop10h 39mSpirit Airlines
Deal found 4/29$307
This United Airlines deal was found by Cheapflights users on 4/29. 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.
ti. 5/275:00 amSTL - MSY
2 stops8h 16mUnited Airlines
lø. 5/315:30 pmMSY - STL
1 stop4h 57mUnited Airlines
Deal found 4/29$308
This Delta deal was found by Cheapflights users on 4/30. 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.
fr. 5/95:40 pmSTL - LFT
1 stop4h 26mDelta
sø. 5/116:00 amLFT - STL
1 stop6h 04mDelta
Deal found 4/30$309
This United Airlines deal was found by Cheapflights users on 4/30. 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.
fr. 5/911:00 amSTL - BTR
1 stop6h 52mUnited Airlines
sø. 5/119:30 amBTR - STL
1 stop6h 19mUnited Airlines
Deal found 4/30$309

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 mai 1, 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

ma. 6/2

6:57 pm-12:06 am

1 stop5h 09m

New Orleans Louis Armstrong

to. 6/5

6:32 pm-11:59 pm

1 stop5h 27m

$189

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

lø. 5/17

5:45 pm-11:20 am

1 stop17h 35m

New Orleans Louis Armstrong

sø. 5/18

7:50 pm-9:09 am

1 stop13h 19m

$228

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

on. 5/21

6:00 am-1:08 pm

1 stop7h 08m

Baton Rouge Ryan

lø. 5/24

4:37 pm-8:39 pm

1 stop4h 02m

$233

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

lø. 6/7

5:37 am-10:18 am

1 stop4h 41m

Lafayette Regional

lø. 6/14

5:05 pm-11:19 pm

1 stop6h 14m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

ti. 5/27

5:19 am-10:01 am

1 stop4h 42m

Baton Rouge Ryan

ti. 6/3

4:32 pm-9:26 pm

1 stop4h 54m

$249

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

sø. 5/25

6:00 am-11:41 am

1 stop5h 41m

New Orleans Louis Armstrong

on. 5/28

7:46 am-12:04 pm

1 stop4h 18m

$281

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

ma. 5/26

5:25 pm-7:10 pm

Nonstop1h 45m

New Orleans Louis Armstrong

on. 5/28

6:00 pm-7:50 pm

Nonstop1h 50m

$288

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

to. 5/29

10:10 am-7:10 pm

1 stop9h 00m

New Orleans Louis Armstrong

ma. 6/2

11:34 am-11:45 am

2 stops24h 11m

$302

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

ti. 5/27

5:00 am-1:16 pm

2 stops8h 16m

New Orleans Louis Armstrong

lø. 5/31

5:30 pm-10:27 pm

1 stop4h 57m

$308

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

fr. 5/9

11:00 am-5:52 pm

1 stop6h 52m

Baton Rouge Ryan

sø. 5/11

9:30 am-3:49 pm

1 stop6h 19m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 26 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 mai 1, 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.

Rainfall in Louisiana by month

Plan your trip to Louisiana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisiana ranges from 3.3 - 6.4 inches per month. June is typically the wettest month, when rainfall can reach 6.4 in. October is typically the driest time to visit Louisiana when rainfall is around 3.3 in.

Temperature in Louisiana by month

Plan your trip to Louisiana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisiana, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 mai 1, 2025.
To help decide which airline to fly from St. Louis to Louisiana, see what other customers have to say about Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Spirit Airlines
6.3
Okay
7,963 reviews
Southwest
8.0
Very good
4,294 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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, 2 users have taken a look at flights from Lambert-St Louis to Louisiana.

  • 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 American Airlines ($95), Frontier ($106), and Spirit Airlines ($108).

  • 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 - 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 $306, our data indicates the cheapest price to be $135. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $281.

  • 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 mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$86Average$237FlexibilityNo cancel feeOn-time65%
FrontierCheapest$127Average$199FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$155Average$347FlexibilityNo cancel feeOn-time71%
DeltaCheapest$197Average$304FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$395FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$295Average$432FlexibilityNo cancel feeOn-time63%

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