Louisiana

$69+ Cheap flights from St. Louis (STL) to Louisiana

STL — MSY
Dec 4 — Dec 111
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Cheap flight deals from St. Louis to Louisiana

Cheapest flights from St. Louis to Louisiana

Wed 12/212:05 pm -
1 stop20h 33m
Tue 12/89:26 am -
1 stop25h 51m
Deal found 11/1$128
Fri 12/1112:02 pm -
1 stop20h 36m
Tue 12/159:26 am -
1 stop25h 51m
Deal found 11/4$130
Mon 11/236:35 pm -
1 stop12h 24m
Wed 11/257:44 am -
1 stop9h 56m
Deal found 11/2$176
Thu 11/265:15 pm -
2 stops13h 57m
Thu 12/39:26 am -
1 stop25h 51m
Deal found 11/2$178
Wed 12/212:05 pm -
1 stop20h 33m
Sat 12/56:05 pm -
1 stop6h 07m
Deal found 11/4$183
Tue 12/16:13 pm -
2 stops38h 25m
Tue 12/89:26 am -
1 stop25h 51m
Deal found 11/3$184
Wed 12/1612:02 pm -
1 stop19h 53m
Sun 12/209:35 am -
1 stop25h 18m
Deal found 11/4$185
Sat 12/56:20 pm -
1 stop14h 15m
Sat 12/126:05 pm -
1 stop6h 07m
Deal found 11/4$198
Fri 12/410:45 am -
1 stop6h 34m
Thu 12/105:54 pm -
1 stop4h 37m
Deal found 11/3$319
Wed 12/168:02 am -
2 stops7h 25m
Mon 12/215:59 pm -
1 stop4h 31m
Deal found 11/2$324
Wed 12/23:00 pm -
1 stop4h 42m
Wed 12/93:56 pm -
1 stop6h 34m
Deal found 11/1$334
Fri 12/186:15 am -
1 stop5h 08m
Mon 12/215:59 pm -
1 stop4h 31m
Deal found 10/31$337

Find flight deals from St. Louis to Louisiana

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(Kiwi.com)

One-way from

$69
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$458

Good round-trip deal

$427 or less

Good one-way deal

$348 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
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Average for round-trip flights in November 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

 
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

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 12/18

6:21 pm-8:15 am

2 stops37h 54m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$137

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 12/25

6:21 pm-8:05 am

2 stops13h 44m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$138

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Sun 12/6

6:20 pm-5:08 pm

1 stop22h 48m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$144

St. LouisBaton Rouge

STL Lambert-St Louis - BTR Baton Rouge Ryan

STLBTR

Lambert-St Louis

Sun 11/22

6:00 am-10:33 am

1 stop4h 33m

Baton Rouge Ryan

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$170

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 12/18

9:50 pm-11:40 pm

Nonstop1h 50m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Tue 12/29

9:50 pm-11:40 pm

Nonstop1h 50m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 12/25

8:25 pm-10:15 pm

Nonstop1h 50m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179
Quickest round-trip

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Tue 12/15

8:30 am-10:15 am

Nonstop1h 45m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Sat 12/19

9:45 pm-11:35 pm

Nonstop1h 50m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Mon 11/23

8:25 am-10:10 am

Nonstop1h 45m

New Orleans Louis Armstrong

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 46 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

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, April is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $368). Flying from St. Louis to Louisiana in November is currently the most expensive (average of $450). 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?

It’s optimal to fly from St. Louis to Louisiana in the afternoon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight at noon.

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

Airfare is below average for this route at the moment.
St. Louis to Louisiana flights typically cost between $427 and $507 in December.
The cheapest round-trip price found within the last 5 days was $128 on Frontier (Dec 2-Dec 8).

How far ahead should I book a flight from St. Louis to Louisiana?

Booking 18 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Louisiana. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Louisiana

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

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • 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 4h 35m. There are 597 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 United Airlines ($98), Southwest ($167), and Delta ($174).

  • 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 $489, our data indicates the cheapest price to be $81. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $231.

  • 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, April is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $368). Flying from St. Louis to Louisiana in November is currently the most expensive (average of $450). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Louisiana

Top 5 airlines flying from St. Louis to Louisiana

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$260FlexibilityNo cancel feeOn-time62%
DeltaCheapest$93Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$196Average$299FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$423FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$310Average$447FlexibilityNo cancel feeOn-time63%

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