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$70+ Cheap flights from St. Louis to New Orleans (STL - MSY)

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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Find cheap flights from St. Louis to New Orleans with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to New Orleans Louis Armstrong are usually found in September or August, booked 70 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to New Orleans

Cheapest flights from St. Louis to New Orleans
Explore the most affordable flight options available from St. Louis to New Orleans. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Frontier deal was found by Cheapflights users on 3/21. 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.
Sun 5/311:28 am
STL
-
MSY
1 stop6h 04m
Frontier
Sat 5/95:18 pm
MSY
-
STL
1 stop7h 03m
Frontier
Deal found 3/21$140
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Fri 5/155:27 pm
STL
-
MSY
1 stop22h 54m
Frontier
Tue 5/195:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 3/18$153
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:23 pm
STL
-
MSY
1 stop19h 58m
Frontier
Fri 5/85:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 3/19$158
This Frontier deal was found by Cheapflights users on 3/21. 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.
Sun 5/311:28 am
STL
-
MSY
1 stop6h 04m
Frontier
Thu 5/74:25 pm
MSY
-
STL
1 stop7h 56m
Frontier
Deal found 3/21$160
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:23 pm
STL
-
MSY
1 stop21h 09m
Frontier
Tue 5/55:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 3/19$174
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:17 pm
STL
-
MSY
1 stop18h 27m
Frontier
Thu 5/74:25 pm
MSY
-
STL
1 stop7h 56m
Frontier
Deal found 3/19$180
This Frontier deal was found by Cheapflights users on 3/21. 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 4/3011:21 am
STL
-
MSY
1 stop4h 29m
Frontier
Fri 5/84:25 pm
MSY
-
STL
1 stop7h 56m
Frontier
Deal found 3/21$181
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:23 pm
STL
-
MSY
1 stop21h 09m
Frontier
Fri 5/85:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 3/19$186
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:41 pm
STL
-
MSY
2 stops14h 24m
Multiple Airlines
Thu 5/75:21 pm
MSY
-
STL
1 stop15h 34m
Multiple Airlines
Deal found 3/19$194
This Frontier deal was found by Cheapflights users on 3/17. 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.
Sun 5/1012:16 pm
STL
-
MSY
1 stop8h 35m
Frontier
Thu 5/144:25 pm
MSY
-
STL
1 stop7h 56m
Frontier
Deal found 3/17$201
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Wed 4/298:23 pm
STL
-
MSY
1 stop19h 27m
Frontier
Tue 5/55:21 pm
MSY
-
STL
1 stop15h 34m
Frontier
Deal found 3/21$204
This Frontier deal was found by Cheapflights users on 3/20. 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.
Sun 5/311:28 am
STL
-
MSY
1 stop6h 04m
Frontier
Sun 5/104:27 pm
MSY
-
STL
1 stop7h 54m
Frontier
Deal found 3/20$205

Find flight deals from St. Louis to New Orleans

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to New Orleans (MSY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$140
(Frontier)

One-way from

$70
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$416

Good round-trip deal

$346 or less

Good one-way deal

$207 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 New Orleans Louis Armstrong
Search Deals
One-way flight from Lambert-St Louis to New Orleans Louis Armstrong
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to New Orleans Louis Armstrong.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to New Orleans Louis Armstrong.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to New Orleans 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 March 22, 2026.
Use the filters below to find and compare flights from St. Louis to New Orleans that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 4/15

6:30 am-1:23 pm

1 stop6h 53m

New Orleans Louis Armstrong

Wed 4/22

5:25 pm-10:28 pm

1 stop5h 03m

$267

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 5/2

8:55 am-2:35 pm

1 stop5h 40m

New Orleans Louis Armstrong

Thu 5/7

7:45 am-9:35 am

Nonstop1h 50m

$313

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 4/11

6:00 am-11:40 pm

1 stop17h 40m

New Orleans Louis Armstrong

Wed 4/22

7:51 am-11:56 am

1 stop4h 05m

$322
Quickest round-trip

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 5/26

8:35 am-10:20 am

Nonstop1h 45m

New Orleans Louis Armstrong

Sat 5/30

7:55 am-9:45 am

Nonstop1h 50m

$346

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 4/14

6:19 am-11:54 am

1 stop5h 35m

New Orleans Louis Armstrong

Tue 4/21

6:48 am-11:56 am

1 stop5h 08m

$351

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Fri 6/12

6:30 pm-11:55 pm

1 stop5h 25m

New Orleans Louis Armstrong

Mon 6/15

6:40 pm-12:05 am

1 stop5h 25m

$351

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Fri 6/5

7:01 pm-11:54 pm

1 stop4h 53m

New Orleans Louis Armstrong

Mon 6/8

6:30 am-12:54 pm

1 stop6h 24m

$385

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 6/11

5:35 pm-9:50 pm

1 stop4h 15m

New Orleans Louis Armstrong

Sat 6/13

7:45 am-9:35 am

Nonstop1h 50m

$393

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 4/4

8:30 am-10:20 am

Nonstop1h 50m

New Orleans Louis Armstrong

Tue 4/7

1:25 pm-6:00 pm

1 stop4h 35m

$439

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 3/26

6:30 am-10:35 am

1 stop4h 05m

New Orleans Louis Armstrong

Mon 4/6

7:00 pm-8:50 pm

Nonstop1h 50m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from St. Louis to New Orleans

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to New Orleans in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-New Orleans flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-New Orleans flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-New Orleans flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-New Orleans flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-New Orleans flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to New Orleans

Have a flexible travel schedule? Discover the best time to fly to New Orleans 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 New Orleans

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to New Orleans. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from St. Louis to New Orleans, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to New Orleans?

Currently, December is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $88). Flying from St. Louis to New Orleans in June is currently the most expensive (average of $262). 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 MSY?

Find hourly flight availability from St. Louis to New Orleans. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 22, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 16% on flights from St. Louis to New Orleans by exploring options for tickets at noon.

Reviews of airlines servicing New Orleans

Get insights into the airlines that provide service to New Orleans. 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 New Orleans. Reviews last updated March 22, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to New Orleans have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,314 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,455 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,488 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,018 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to New Orleans. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to New Orleans?

    If you wish to fly to New Orleans from St. Louis, then you need to book flights from Lambert-St Louis to New Orleans Louis Armstrong. There is 1 flight from Lambert-St Louis (STL) to Louis Armstrong (MSY) per day to choose from. Flights to New Orleans from Lambert-St Louis are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 1h 45m is how long a nonstop flight from St. Louis to New Orleans Louis Armstrong typically takes.

  • How popular is this St. Louis to New Orleans flight route?

    This flight path from Lambert-St Louis to New Orleans Louis Armstrong was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like United Airlines, Southwest, and Delta fly from St. Louis to New Orleans in about 5h 40m. The time it takes to get you to your destination can typically vary by up to 12h. St. Louis and New Orleans are separated by a distance of 605 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to New Orleans round-trip?

    Cheapflights users have booked flights from St. Louis to New Orleans round-trip from $82. Other airlines that can offer you cheap pricing are Delta, from $93, and United Airlines, from $196. These flights start at 78% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to New Orleans one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $55. Delta flights start at $98 while deals on United Airlines start at $98 one-way.

  • What are the cheapest flights from St. Louis to New Orleans?

    On average you can expect to pay $360 for a flight from St. Louis to New Orleans. The cheapest flight overall is $207 while the most popular route, (Lambert-St Louis - New Orleans Louis Armstrong) is currently priced at $180.

  • Can I find deals for flights from St. Louis to New Orleans that include hotel bookings?

    Yes. In addition to deals on St. Louis to New Orleans flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to New Orleans?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to New Orleans.

  • Can I find deals for business class flights from St. Louis to New Orleans?

    Yes. Cheapflights offers flight deals from St. Louis to New Orleans 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 New Orleans?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $88). Flying from St. Louis to New Orleans in June is currently the most expensive (average of $262). 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

Traveling to a place near New Orleans?

Book flights to New Orleans if you plan to visit one of these locations
Metairie
Kenner
Gonzales
Houma
Slidell
Covington
Gretna
Thibodaux
Hammond

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from St. Louis to New Orleans

Discover the top 5 airlines that operate flights from St. Louis to New Orleans. 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$238FlexibilityNo cancel feeOn-time62%
DeltaCheapest$93Average$277FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$196Average$317FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$208Average$371FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$240Average$413FlexibilityNo cancel feeOn-time63%

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