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Cheap flights from St. Louis to New Orleans from $88

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to New Orleans

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:02 pm - 8:38 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
20h 36m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:26 am - 11:17 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
25h 51m1 stop Atlanta Hartsfield-Jackson
$159Frontier
Fri, Dec 4 - Tue, Dec 8
Frontier Logo
6:35 pm - 6:59 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
12h 24m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:44 am - 5:40 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
9h 56m1 stop Atlanta Hartsfield-Jackson
$164Frontier
Mon, Nov 23 - Wed, Nov 25
Multiple Airlines Logo
6:35 pm - 6:59 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
12h 24m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:46 pm - 11:10 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
44h 24m2 stops Cincinnati Cinci./N. Kentucky Atlanta Hartsfield-Jackson
$223Multiple Airlines
Mon, Nov 23 - Mon, Nov 30
Multiple Airlines Logo
6:13 pm - 7:13 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
25h 00m1 stop Orlando
Multiple Airlines Logo
9:26 am - 11:17 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
25h 51m1 stop Atlanta Hartsfield-Jackson
$252Multiple Airlines
Tue, Dec 1 - Tue, Dec 8
Southwest Logo
5:05 pm - 6:50 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 45mnonstop
Southwest Logo
8:05 am - 9:50 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
1h 45mnonstop
$291Southwest
Sat, Dec 5 - Sat, Dec 12
Southwest Logo
5:05 pm - 6:50 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 45mnonstop
Southwest Logo
8:05 am - 9:50 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
1h 45mnonstop
$291Southwest
Sat, Dec 5 - Sat, Dec 12
American Airlines Logo
6:44 pm - 11:07 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
4h 23m1 stop Dallas/Fort Worth
American Airlines Logo
6:36 pm - 11:34 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
4h 58m1 stop Dallas/Fort Worth
$301American Airlines
Tue, Dec 8 - Sat, Dec 12
American Airlines Logo
5:00 am - 10:05 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
5h 05m1 stop Dallas/Fort Worth
American Airlines Logo
10:53 am - 5:46 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
6h 53m1 stop Dallas/Fort Worth
$301American Airlines
Tue, Dec 1 - Tue, Dec 8
Delta Logo
5:30 pm - 10:53 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
5h 23m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:08 pm - 6:13 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 05m1 stop Atlanta Hartsfield-Jackson
$301Delta
Thu, Nov 26 - Wed, Dec 2
Delta Logo
6:59 pm - 11:27 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
4h 28m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:10 pm - 11:39 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
4h 29m1 stop Atlanta Hartsfield-Jackson
$367Delta
Fri, Feb 26 - Mon, Mar 1

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Frontier flights from St. Louis to New Orleans

Our best Frontier deals on St. Louis to New Orleans flight tickets
Frontier
Nov 9
STL6:34 pmLambert-St Louis
21h 39m
1 stop
MSY4:13 pmNew Orleans Louis Armstrong
Nov 13
MSY10:45 amNew Orleans Louis Armstrong
8h 29m
1 stop
STL7:14 pmLambert-St Louis
$154
Frontier
Dec 4
STL12:02 pmLambert-St Louis
20h 36m
1 stop
MSY8:38 amNew Orleans Louis Armstrong
Dec 8
MSY9:26 amNew Orleans Louis Armstrong
25h 51m
1 stop
STL11:17 amLambert-St Louis
$159
Frontier
Nov 23
STL6:35 pmLambert-St Louis
12h 24m
1 stop
MSY6:59 amNew Orleans Louis Armstrong
Nov 25
MSY7:44 amNew Orleans Louis Armstrong
9h 56m
1 stop
STL5:40 pmLambert-St Louis
$164

Southwest flights from St. Louis to New Orleans

Our best Southwest deals on St. Louis to New Orleans flight tickets
Southwest
Nov 13
STL9:45 pmLambert-St Louis
1h 50m
MSY11:35 pmNew Orleans Louis Armstrong
Dec 6
MSY5:10 amNew Orleans Louis Armstrong
4h 15m
1 stop
STL9:25 amLambert-St Louis
$497
Southwest
Nov 13
STL9:45 pmLambert-St Louis
1h 50m
MSY11:35 pmNew Orleans Louis Armstrong
Dec 6
MSY7:10 amNew Orleans Louis Armstrong
1h 45m
STL8:55 amLambert-St Louis
$554
Southwest
Nov 13
STL9:45 pmLambert-St Louis
1h 50m
MSY11:35 pmNew Orleans Louis Armstrong
Dec 6
MSY7:10 amNew Orleans Louis Armstrong
1h 45m
STL8:55 amLambert-St Louis
$571

momondo Fare Finder

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

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Route

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Price

Cheapest round-trip

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 12/4

12:02 pm-8:38 am

1 stop20h 36m

New Orleans Louis Armstrong

Tue 12/8

9:26 am-11:17 am

1 stop25h 51m

$159

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Mon 11/23

6:35 pm-6:59 am

1 stop12h 24m

New Orleans Louis Armstrong

Wed 11/25

7:44 am-5:40 pm

1 stop9h 56m

$164

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Mon 11/23

6:35 pm-6:59 am

1 stop12h 24m

New Orleans Louis Armstrong

Mon 11/30

2:46 pm-11:10 am

2 stops44h 24m

$223

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Tue 12/1

6:13 pm-7:13 pm

1 stop25h 00m

New Orleans Louis Armstrong

Tue 12/8

9:26 am-11:17 am

1 stop25h 51m

$252
Quickest round-trip

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Sat 12/5

5:05 pm-6:50 pm

Nonstop1h 45m

New Orleans Louis Armstrong

Sat 12/12

8:05 am-9:50 am

Nonstop1h 45m

$291

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Sat 12/5

5:05 pm-6:50 pm

Nonstop1h 45m

New Orleans Louis Armstrong

Sat 12/12

8:05 am-9:50 am

Nonstop1h 45m

$291

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Tue 12/8

6:44 pm-11:07 pm

1 stop4h 23m

New Orleans Louis Armstrong

Sat 12/12

6:36 pm-11:34 pm

1 stop4h 58m

$301

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Tue 12/1

5:00 am-10:05 am

1 stop5h 05m

New Orleans Louis Armstrong

Tue 12/8

10:53 am-5:46 pm

1 stop6h 53m

$301

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Thu 11/26

5:30 pm-10:53 pm

1 stop5h 23m

New Orleans Louis Armstrong

Wed 12/2

1:08 pm-6:13 pm

1 stop5h 05m

$301

St. LouisNew Orleans

STL Lambert-St Louis - MSY New Orleans Louis Armstrong

STLMSY

Lambert-St Louis

Fri 2/26

6:59 pm-11:27 pm

1 stop4h 28m

New Orleans Louis Armstrong

Mon 3/1

7:10 pm-11:39 pm

1 stop4h 29m

$367

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New Orleans from

How to get the cheapest flight ticket from St. Louis to New Orleans

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and New Orleans?

Prices are currently low for flights on this route.

Typical prices usually range from $427 to $507.
The lowest price recently found on this route was $159.

What is the cheapest month to fly to New Orleans?

The cheapest month to fly to New Orleans from St. Louis is in April. Flight prices, which tend to average around $350, are often lower during this time because this is during the off-season. If you are unable to visit New Orleans during the month of April, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $402.

What is the cheapest day to depart on your flight to New Orleans?

The cheapest day to depart from St. Louis to New Orleans is on a Tuesday when prices can be found for as low as $350. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to New Orleans for around $469.

What is the cheapest time of day to depart on your flight to New Orleans?

The cheapest time of day to fly to New Orleans is in the afternoon when flights can be purchased for as low as $433. At noon is when there is more demand to fly to New Orleans, so prices are often more expensive at around $493 per ticket.

What is the cheapest Lambert-St Louis to New Orleans Louis Armstrong flight route?

Fly from Lambert-St Louis to New Orleans Louis Armstrong for the best Lambert-St Louis - New Orleans Louis Armstrong flight prices

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

You are more likely to see cheaper flights to New Orleans from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to New Orleans for around $432 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Orleans from St. Louis for as low as $277 on momondo.

What cabin class options are available on St. Louis to New Orleans flights?

There is only 1 cabin class available to choose from on St. Louis to New Orleans flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to New Orleans flights?

No. A direct flight is the cheapest option for a flight between St. Louis to New Orleans.

How have St. Louis to New Orleans flight prices changed over time?

As of October 2026, prices for St. Louis to New Orleans flights are approximately 26% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to New Orleans

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to New Orleans according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to New Orleans (STL to MSY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to New Orleans

Best Price Found

$88

Fastest flight time

1h 40m

Direct flights

Every day

Airports in New Orleans

1 airport
The best one-way flight to New Orleans from St. Louis in the past 72 hours is $88. The best round-trip flight deal from St. Louis to New Orleans found on momondo in the last 72 hours is $159.
The fastest flight from St. Louis to New Orleans takes 1h 40m
Direct flights go from St. Louis to New Orleans every day.
There is 1 airport in New Orleans. From St. Louis there are direct flights to New Orleans Louis Armstrong (MSY).
Search flight deals

Frequently asked questions about flying from St. Louis to New Orleans

  • How far is Lambert-St Louis to New Orleans Louis Armstrong by plane?

    The distance between Lambert-St Louis and New Orleans Louis Armstrong is about 599.0 mi. Typically, this will take 1h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport?

    Prices for flights from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport.

  • What documentation or ID do you need to fly to New Orleans Louis Armstrong Airport?

    The travel and health documents you'll need for your trip to New Orleans Louis Armstrong Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at New Orleans Louis Armstrong Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to New Orleans?

  • What is the most popular airline from St. Louis to New Orleans?

Best airlines flying from St. Louis to New Orleans

Compare and see reviews for airlines that fly from St. Louis to New Orleans with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $82Free CancellationRating
5.5
2,516 reviews
Search Frontier flights
DeltaPriceFrom $93Free CancellationRating
7.8
8,692 reviews
Search Delta flights
United AirlinesPriceFrom $196Free CancellationRating
7.3
10,451 reviews
Search United Airlines flights
SouthwestPriceFrom $310Free CancellationRating
7.9
4,217 reviews
Search Southwest flights
American AirlinesPriceFrom $338Free CancellationRating
7.0
12,210 reviews
Search American Airlines flights

  • Southwest Flights From St. Louis to New Orleans

    Southwest is one of the most popular airlines flying from St. Louis to New Orleans, operating 6 flights/week on average for this route. A good Southwest flight deal for St. Louis to New Orleans starts from $310 round-trip, up to an average price of $448. Our users have rated Southwest at 7.9/10.

Traveling to a place near New Orleans?

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to New Orleans?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to New Orleans. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to New Orleans with flexible booking policies on momondo?

momondo does allow users to show only those flights to New Orleans from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to New Orleans?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to New Orleans from St. Louis.

I’m not ready to book a flight from St. Louis to New Orleans right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to New Orleans from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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