New Orleans

$84+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Jul 8 — Jul 151
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to New Orleans with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to New Orleans Louis Armstrong are usually found in August or November, booked 50 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap 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 July 3, 2025.

Round-trip from

$181
(Booking.com)

One-way from

$84
(Mytrip)

Popular in

May

Cheapest in

August

Average price

$371

Good round-trip deal

$307 or less

Good one-way deal

$228 or less
From Lambert-St Louis to New Orleans Louis Armstrong
One-way flight from Lambert-St Louis to New Orleans Louis Armstrong
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Lambert-St Louis to New Orleans Louis Armstrong.
Price to beat on a one-way flight from Lambert-St Louis to New Orleans Louis Armstrong.

Find 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 July 3, 2025.

This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:24 amSTL - MSY
1 stop7h 51mSpirit Airlines
Thu 8/76:20 amMSY - STL
1 stop10h 11mSpirit Airlines
Deal found 6/30$181
This Southwest deal was found by Cheapflights users on 7/1. 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.
Mon 8/119:50 amSTL - MSY
Nonstop1h 40mSouthwest
Wed 8/138:50 amMSY - STL
Nonstop1h 50mSouthwest
Deal found 7/1$197
This Priceline deal was found by Cheapflights users on 7/2. 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 10/1611:02 amSTL - MSY
1 stop4h 54mMultiple Airlines
Sun 10/197:53 amMSY - STL
1 stop10h 39mMultiple Airlines
Deal found 7/2$198
This Delta deal was found by Cheapflights users on 7/2. 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 8/165:11 pmSTL - MSY
1 stop5h 51mDelta
Sat 8/235:40 amMSY - STL
1 stop6h 51mDelta
Deal found 7/2$241
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/2612:20 pmSTL - MSY
1 stop5h 03mAmerican Airlines
Mon 9/14:07 pmMSY - STL
1 stop6h 52mAmerican Airlines
Deal found 7/3$258

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 July 3, 2025.
Use the filters below to find and compare flights from St. Louis to New Orleans that are best for you.

Fly from

St. Louis

Fly to

New Orleans

Route

Depart

Return

Price

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 7/30

11:24 am-7:15 pm

1 stop7h 51m

New Orleans Louis Armstrong

Thu 8/7

6:20 am-4:31 pm

1 stop10h 11m

$181

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 8/11

9:50 am-11:30 am

Nonstop1h 40m

New Orleans Louis Armstrong

Wed 8/13

8:50 am-10:40 am

Nonstop1h 50m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 8/16

5:11 pm-11:02 pm

1 stop5h 51m

New Orleans Louis Armstrong

Sat 8/23

5:40 am-12:31 pm

1 stop6h 51m

$241

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 8/26

12:20 pm-5:23 pm

1 stop5h 03m

New Orleans Louis Armstrong

Mon 9/1

4:07 pm-10:59 pm

1 stop6h 52m

$258

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 7/9

7:29 pm-5:04 pm

1 stop21h 35m

New Orleans Louis Armstrong

Sun 7/13

6:01 pm-9:11 am

1 stop15h 10m

$271

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 9/4

4:00 pm-3:56 pm

1 stop23h 56m

$84

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 8/2

10:45 am-8:39 pm

1 stop9h 54m

$86

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 8/18

5:30 pm-10:25 pm

1 stop4h 55m

$99

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Wed 9/3

3:36 pm-8:19 pm

1 stop4h 43m

$104

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 8/17

8:00 am-4:30 pm

1 stop8h 30m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 13 results
1
2

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 June 27, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to New Orleans, you should look to book at least 50 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, August is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $256). Flying from St. Louis to New Orleans 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 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 July 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 14% 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 July 3, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 6 different airlines, which means you should have some options if you want to compare airfare deals. 1h 40m 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?

  • 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 $181. Other airlines that can offer you cheap pricing are Southwest, from $197, and Delta, from $241. These flights start at 52% 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 $84. Spirit Airlines flights start at $86 while deals on United Airlines start at $99 one-way.

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

    On average you can expect to pay $423 for a flight from St. Louis to New Orleans. The cheapest flight overall is $197 while the most popular route, (Lambert-St Louis - New Orleans Louis Armstrong) is currently priced at $192.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $256). Flying from St. Louis to New Orleans 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

Traveling to a place near St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from St. Louis to New Orleans

Discover the top 6 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$223FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$151Average$299FlexibilityNo cancel feeOn-time65%
DeltaCheapest$196Average$277FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$210Average$343FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$346FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$293Average$426FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.