Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to New Orleans from $84

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to New Orleans departing on 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to New Orleans

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:49 pm - 11:01 am
STL
-
MSY
19h 12m
1 stop
Multiple Airlines Logo
9:51 pm - 10:27 pm
MSY
-
STL
24h 36m
1 stop
$147Multiple Airlines
lun., févr. 23 - lun., mars 2
Frontier Logo
3:49 pm - 10:09 am
STL
-
MSY
18h 20m
1 stop
Frontier Logo
1:38 pm - 11:59 pm
MSY
-
STL
10h 21m
1 stop
$150Frontier
sam., févr. 14 - sam., févr. 21
Multiple Airlines Logo
3:49 pm - 10:58 pm
STL
-
MSY
7h 09m
1 stop
Multiple Airlines Logo
12:14 pm - 10:27 pm
MSY
-
STL
10h 13m
1 stop
$162Multiple Airlines
mar., févr. 24 - mar., mars 3
Frontier Logo
1:59 pm - 12:24 am
STL
-
MSY
10h 25m
1 stop
Frontier Logo
9:51 pm - 10:27 pm
MSY
-
STL
24h 36m
1 stop
$163Frontier
ven., févr. 20 - lun., févr. 23
Multiple Airlines Logo
3:49 pm - 11:01 am
STL
-
MSY
19h 12m
1 stop
Multiple Airlines Logo
8:36 pm - 10:27 pm
MSY
-
STL
25h 51m
1 stop
$165Multiple Airlines
lun., févr. 23 - mar., mars 3
Frontier Logo
4:51 pm - 12:24 am
STL
-
MSY
7h 33m
1 stop
Frontier Logo
10:59 pm - 6:51 am
MSY
-
STL
7h 52m
1 stop
$170Frontier
mer., févr. 18 - dim., févr. 22
Multiple Airlines Logo
8:20 pm - 5:02 pm
STL
-
MSY
20h 42m
1 stop
Multiple Airlines Logo
12:14 pm - 10:27 pm
MSY
-
STL
10h 13m
1 stop
$172Multiple Airlines
ven., févr. 20 - mar., févr. 24
Frontier Logo
3:30 pm - 1:07 pm
STL
-
MSY
21h 37m
1 stop
Frontier Logo
2:02 pm - 10:33 pm
MSY
-
STL
8h 31m
1 stop
$179Frontier
mer., avr. 1 - sam., avr. 4
Multiple Airlines Logo
3:46 pm - 6:48 pm
STL
-
MSY
27h 02m
1 stop
Multiple Airlines Logo
7:00 am - 10:27 pm
MSY
-
STL
15h 27m
1 stop
$180Multiple Airlines
sam., févr. 7 - mar., févr. 10
Frontier Logo
5:42 pm - 10:07 am
STL
-
MSY
16h 25m
1 stop
Frontier Logo
10:01 am - 11:33 pm
MSY
-
STL
13h 32m
1 stop
$181Frontier
jeu., janv. 29 - lun., févr. 2

United Airlines flights from St. Louis to New Orleans

Our best United Airlines deals on St. Louis to New Orleans flight tickets
United Airlines
Jan 23
STL6:00 amLambert-St Louis
7h 09m
1 stop
MSY1:09 pmNew Orleans Louis Armstrong
Jan 25
MSY5:35 pmNew Orleans Louis Armstrong
4h 25m
1 stop
STL10:00 pmLambert-St Louis
$401
United Airlines
Jan 15
STL1:15 pmLambert-St Louis
8h 36m
2 stops
MSY9:51 pmNew Orleans Louis Armstrong
Jan 26
MSY3:59 pmNew Orleans Louis Armstrong
6h 01m
1 stop
STL10:00 pmLambert-St Louis
$404
United Airlines
Jan 16
STL4:35 pmLambert-St Louis
6h 23m
1 stop
MSY10:58 pmNew Orleans Louis Armstrong
Jan 18
MSY5:00 amNew Orleans Louis Armstrong
9h 30m
2 stops
STL2:30 pmLambert-St Louis
$406

Frontier flights from St. Louis to New Orleans

Our best Frontier deals on St. Louis to New Orleans flight tickets
Frontier
Feb 14
STL3:49 pmLambert-St Louis
18h 20m
1 stop
MSY10:09 amNew Orleans Louis Armstrong
Feb 21
MSY1:38 pmNew Orleans Louis Armstrong
10h 21m
1 stop
STL11:59 pmLambert-St Louis
$150
Frontier
Feb 20
STL1:59 pmLambert-St Louis
10h 25m
1 stop
MSY12:24 amNew Orleans Louis Armstrong
Feb 23
MSY9:51 pmNew Orleans Louis Armstrong
24h 36m
1 stop
STL10:27 pmLambert-St Louis
$163
Frontier
Feb 18
STL4:51 pmLambert-St Louis
7h 33m
1 stop
MSY12:24 amNew Orleans Louis Armstrong
Feb 22
MSY10:59 pmNew Orleans Louis Armstrong
7h 52m
1 stop
STL6:51 amLambert-St Louis
$170

momondo 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, momondo users made 832,500 searches. Data last updated janvier 13, 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

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

lun. 2/23

3:49 pm-11:01 am

1 stop19h 12m

New Orleans Louis Armstrong

lun. 3/2

9:51 pm-10:27 pm

1 stop24h 36m

$147

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

sam. 2/14

3:49 pm-10:09 am

1 stop18h 20m

New Orleans Louis Armstrong

sam. 2/21

1:38 pm-11:59 pm

1 stop10h 21m

$150

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

mar. 2/24

3:49 pm-10:58 pm

1 stop7h 09m

New Orleans Louis Armstrong

mar. 3/3

12:14 pm-10:27 pm

1 stop10h 13m

$162

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

ven. 2/20

1:59 pm-12:24 am

1 stop10h 25m

New Orleans Louis Armstrong

lun. 2/23

9:51 pm-10:27 pm

1 stop24h 36m

$163

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

lun. 2/23

3:49 pm-11:01 am

1 stop19h 12m

New Orleans Louis Armstrong

mar. 3/3

8:36 pm-10:27 pm

1 stop25h 51m

$165

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

mer. 2/18

4:51 pm-12:24 am

1 stop7h 33m

New Orleans Louis Armstrong

dim. 2/22

10:59 pm-6:51 am

1 stop7h 52m

$170

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

ven. 2/20

8:20 pm-5:02 pm

1 stop20h 42m

New Orleans Louis Armstrong

mar. 2/24

12:14 pm-10:27 pm

1 stop10h 13m

$172

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

mer. 4/1

3:30 pm-1:07 pm

1 stop21h 37m

New Orleans Louis Armstrong

sam. 4/4

2:02 pm-10:33 pm

1 stop8h 31m

$179

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

sam. 2/7

3:46 pm-6:48 pm

1 stop27h 02m

New Orleans Louis Armstrong

mar. 2/10

7:00 am-10:27 pm

1 stop15h 27m

$180

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

jeu. 1/29

5:42 pm-10:07 am

1 stop16h 25m

New Orleans Louis Armstrong

lun. 2/2

10:01 am-11:33 pm

1 stop13h 32m

$181

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 cheapest month to fly to New Orleans?

The cheapest month to fly to New Orleans from St. Louis is in September. Flight prices, which tend to average around $312, 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 September, then departing from St. Louis during the month June is also very affordable. Most momondo users find prices during this month for around $364.

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 Monday when prices can be found for as low as $345. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to New Orleans for around $451.

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 at noon when flights can be purchased for as low as $378. In the evening is when there is more demand to fly to New Orleans, so prices are often more expensive at around $426 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 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 $400 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 $327 on momondo.

What cabin class options are available on Lambert-St Louis to New Orleans Louis Armstrong flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to New Orleans Louis Armstrong 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?

You could potentially save up to 23% on your flight if you consider stops on a St. Louis to New Orleans flight.

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

As of January 2026, prices for St. Louis to New Orleans flights are approximately 150% more expensive 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

$390

Fastest flight time

1h 45m

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 $390. The best round-trip flight deal from St. Louis to New Orleans found on momondo in the last 72 hours is $410.
The fastest flight from St. Louis to New Orleans takes 1h 45m
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

  • 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 45m 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
5.7
3,056 reviews
Search Frontier flights
DeltaPriceFrom $98Free CancellationRating
7.9
8,038 reviews
Search Delta flights
United AirlinesPriceFrom $196Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,115 reviews
Search American Airlines flights
SouthwestPriceFrom $240Free CancellationRating
8.0
4,256 reviews
Search Southwest 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 8 flights/week on average for this route. A good Southwest flight deal for St. Louis to New Orleans starts from $240 round-trip, up to an average price of $417. Our users have rated Southwest at 8.0/10.

Traveling to a place near New Orleans?

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

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.

An easier way to manage your New Orleans trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
jeu. 2/12
jeu. 2/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States