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$78+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$193
(FlightHub)

One-way from

$78
(Mytrip)

Popular in

May

Cheapest in

August

Average price

$328

Good round-trip deal

$358 or less

Good one-way deal

$197 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. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:13 pmSTL - MSY
2 stops20h 29mSpirit Airlines
Sat 7/122:15 pmMSY - STL
2 stops19h 37mSpirit Airlines
Deal found 6/10$197
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2610:08 amSTL - MSY
1 stop5h 18mAmerican Airlines
Tue 9/29:34 amMSY - STL
1 stop7h 13mAmerican Airlines
Deal found 6/11$217
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/138:15 amSTL - MSY
1 stop4h 45mSouthwest
Sat 8/1611:00 amMSY - STL
Nonstop1h 50mSouthwest
Deal found 6/11$224
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:29 pmSTL - SHV
1 stop6h 23mDelta
Wed 7/168:10 amSHV - STL
1 stop4h 24mDelta
Deal found 6/11$229
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:00 amSTL - BTR
1 stop5h 42mDelta
Sun 7/67:03 pmBTR - STL
1 stop4h 48mDelta
Deal found 6/11$233
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:15 amSTL - SHV
1 stop4h 34mAmerican Airlines
Wed 8/2010:20 amSHV - STL
2 stops8h 03mAmerican Airlines
Deal found 6/11$234
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:00 amSTL - LFT
1 stop5h 09mDelta
Fri 8/15:39 pmLFT - STL
1 stop6h 14mDelta
Deal found 6/10$249
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:37 amSTL - BTR
1 stop4h 41mAmerican Airlines
Mon 6/306:32 pmBTR - STL
1 stop5h 27mAmerican Airlines
Deal found 6/10$259
This Booking.com deal was found by Cheapflights users on 6/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:02 amSTL - MSY
1 stop4h 54mFrontier
Thu 9/114:51 pmMSY - STL
1 stop17h 16mFrontier
Deal found 6/12$261
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/269:17 amSTL - MSY
2 stops12h 25mUnited Airlines
Tue 9/22:16 pmMSY - STL
1 stop4h 42mUnited Airlines
Deal found 6/10$292
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Mon 7/2810:47 amSTL - MSY
3 stops36h 21mMultiple Airlines
Thu 7/318:00 pmMSY - STL
2 stops22h 41mMultiple Airlines
Deal found 6/9$307
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1210:22 amSTL - LFT
1 stop5h 09mUnited Airlines
Sun 6/152:10 pmLFT - STL
1 stop6h 39mUnited Airlines
Deal found 6/10$339

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 June 12, 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 7/7

7:13 pm-3:42 pm

2 stops20h 29m

New Orleans Louis Armstrong

Sat 7/12

2:15 pm-9:52 am

2 stops19h 37m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 8/26

10:08 am-3:26 pm

1 stop5h 18m

New Orleans Louis Armstrong

Tue 9/2

9:34 am-4:47 pm

1 stop7h 13m

$217

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 8/13

8:15 am-1:00 pm

1 stop4h 45m

New Orleans Louis Armstrong

Sat 8/16

11:00 am-12:50 pm

Nonstop1h 50m

$224

St. LouisShreveport

STL - SHV

STLSHV

Lambert-St Louis

Wed 7/9

1:29 pm-7:52 pm

1 stop6h 23m

Shreveport

Wed 7/16

8:10 am-12:34 pm

1 stop4h 24m

$229

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 7/5

6:00 am-11:42 am

1 stop5h 42m

Baton Rouge Ryan

Sun 7/6

7:03 pm-11:51 pm

1 stop4h 48m

$233

St. LouisShreveport

STL - SHV

STLSHV

Lambert-St Louis

Sun 8/10

5:15 am-9:49 am

1 stop4h 34m

Shreveport

Wed 8/20

10:20 am-6:23 pm

2 stops8h 03m

$234

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Fri 7/25

6:00 am-11:09 am

1 stop5h 09m

Lafayette Regional

Fri 8/1

5:39 pm-11:53 pm

1 stop6h 14m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 6/26

5:37 am-10:18 am

1 stop4h 41m

Baton Rouge Ryan

Mon 6/30

6:32 pm-11:59 pm

1 stop5h 27m

$259

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Fri 9/5

11:02 am-3:56 pm

1 stop4h 54m

New Orleans Louis Armstrong

Thu 9/11

4:51 pm-10:07 am

1 stop17h 16m

$261

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 8/26

9:17 am-9:42 pm

2 stops12h 25m

New Orleans Louis Armstrong

Tue 9/2

2:16 pm-6:58 pm

1 stop4h 42m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 34 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from St. Louis to Louisiana, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 Spirit Airlines ($78), Southwest ($99), and United Airlines ($104).

  • 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 $315, our data indicates the cheapest price to be $132. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $198.

  • 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$86Average$276FlexibilityNo cancel feeOn-time65%
FrontierCheapest$127Average$223FlexibilityNo cancel feeOn-time62%
DeltaCheapest$194Average$290FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$344FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$294Average$427FlexibilityNo cancel feeOn-time63%

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