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Cheap flights from St. Louis to New Orleans from $73

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 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to New Orleans

Cheap round-trip flights

Logo
4:00 pm - 8:33 amSTL-MSY
16h 33m1 stop
Logo
6:50 pm - 10:37 amMSY-STL
15h 47m1 stop
$161
Find Deal
lun., oct. 6 - mié., oct. 8
Logo
11:07 am - 5:00 pmSTL-MSY
5h 53m1 stop
Logo
5:10 am - 11:01 amMSY-STL
5h 51m1 stop
$169
Find Deal
jue., nov. 6 - dom., nov. 9
Logo
4:00 pm - 8:33 amSTL-MSY
16h 33m1 stop
Logo
10:04 pm - 10:37 amMSY-STL
12h 33m1 stop
$170
Find Deal
lun., oct. 6 - jue., oct. 9
Frontier Logo
4:00 pm - 3:57 pmSTL-MSY
23h 57m1 stop
Frontier Logo
5:57 pm - 10:37 amMSY-STL
16h 40m1 stop
$171Frontier
Find Deal
dom., oct. 5 - jue., oct. 9
Spirit Airlines Logo
10:35 am - 8:54 pmSTL-MSY
10h 19m1 stop
Spirit Airlines Logo
6:30 am - 10:02 amMSY-STL
27h 32m1 stop
$187Spirit Airlines
Find Deal
jue., oct. 2 - lun., oct. 6
Spirit Airlines Logo
10:35 am - 11:52 pmSTL-MSY
13h 17m1 stop
Spirit Airlines Logo
8:19 pm - 9:40 amMSY-STL
13h 21m1 stop
$194Spirit Airlines
Find Deal
dom., sep. 7 - sáb., sep. 13
Spirit Airlines Logo
10:57 am - 11:53 pmSTL-MSY
12h 56m1 stop
Spirit Airlines Logo
8:22 pm - 10:02 amMSY-STL
13h 40m1 stop
$198Spirit Airlines
Find Deal
dom., oct. 5 - lun., oct. 6
Frontier Logo
4:00 pm - 3:57 pmSTL-MSY
23h 57m1 stop
Frontier Logo
4:51 pm - 3:04 pmMSY-STL
22h 13m1 stop
$223Frontier
Find Deal
jue., sep. 4 - dom., sep. 7
Frontier Logo
7:52 pm - 6:38 pmSTL-MSY
22h 46m1 stop
Frontier Logo
7:35 pm - 9:07 amMSY-STL
13h 32m1 stop
$243Frontier
Find Deal
sáb., oct. 18 - lun., oct. 20
Frontier Logo
3:02 pm - 12:05 pmSTL-MSY
21h 03m1 stop
Frontier Logo
4:51 pm - 1:02 pmMSY-STL
20h 11m2 stops
$257Frontier
Find Deal
sáb., ago. 30 - jue., sep. 4

Spirit Airlines flights from St. Louis to New Orleans

Our best Spirit Airlines deals on St. Louis to New Orleans flight tickets
Spirit Airlines
Oct 2
STL10:35 amLambert-St Louis
10h 19m
1 stop
MSY8:54 pmNew Orleans Louis Armstrong
Oct 6
MSY6:30 amNew Orleans Louis Armstrong
27h 32m
1 stop
STL10:02 amLambert-St Louis
$187
Find similar
Spirit Airlines
Sep 7
STL10:35 amLambert-St Louis
13h 17m
1 stop
MSY11:52 pmNew Orleans Louis Armstrong
Sep 13
MSY8:19 pmNew Orleans Louis Armstrong
13h 21m
1 stop
STL9:40 amLambert-St Louis
$194
Find similar
Spirit Airlines
Oct 5
STL10:57 amLambert-St Louis
12h 56m
1 stop
MSY11:53 pmNew Orleans Louis Armstrong
Oct 6
MSY8:22 pmNew Orleans Louis Armstrong
13h 40m
1 stop
STL10:02 amLambert-St Louis
$198
Find similar

Frontier flights from St. Louis to New Orleans

Our best Frontier deals on St. Louis to New Orleans flight tickets
Frontier
Oct 5
STL4:00 pmLambert-St Louis
23h 57m
1 stop
MSY3:57 pmNew Orleans Louis Armstrong
Oct 9
MSY5:57 pmNew Orleans Louis Armstrong
16h 40m
1 stop
STL10:37 amLambert-St Louis
$171
Find similar
Frontier
Sep 4
STL4:00 pmLambert-St Louis
23h 57m
1 stop
MSY3:57 pmNew Orleans Louis Armstrong
Sep 7
MSY4:51 pmNew Orleans Louis Armstrong
22h 13m
1 stop
STL3:04 pmLambert-St Louis
$223
Find similar
Frontier
Oct 18
STL7:52 pmLambert-St Louis
22h 46m
1 stop
MSY6:38 pmNew Orleans Louis Armstrong
Oct 20
MSY7:35 pmNew Orleans Louis Armstrong
13h 32m
1 stop
STL9:07 amLambert-St Louis
$243
Find similar

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 agosto 18, 2025.
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. 10/6

4:00 pm-8:33 am

1 stop16h 33m

New Orleans Louis Armstrong

mié. 10/8

6:50 pm-10:37 am

1 stop15h 47m

$161

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

jue. 11/6

11:07 am-5:00 pm

1 stop5h 53m

New Orleans Louis Armstrong

dom. 11/9

5:10 am-11:01 am

1 stop5h 51m

$169

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

lun. 10/6

4:00 pm-8:33 am

1 stop16h 33m

New Orleans Louis Armstrong

jue. 10/9

10:04 pm-10:37 am

1 stop12h 33m

$170

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

dom. 10/5

4:00 pm-3:57 pm

1 stop23h 57m

New Orleans Louis Armstrong

jue. 10/9

5:57 pm-10:37 am

1 stop16h 40m

$171

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

jue. 10/2

10:35 am-8:54 pm

1 stop10h 19m

New Orleans Louis Armstrong

lun. 10/6

6:30 am-10:02 am

1 stop27h 32m

$187

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

dom. 9/7

10:35 am-11:52 pm

1 stop13h 17m

New Orleans Louis Armstrong

sáb. 9/13

8:19 pm-9:40 am

1 stop13h 21m

$194

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

dom. 10/5

10:57 am-11:53 pm

1 stop12h 56m

New Orleans Louis Armstrong

lun. 10/6

8:22 pm-10:02 am

1 stop13h 40m

$198

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

jue. 9/4

4:00 pm-3:57 pm

1 stop23h 57m

New Orleans Louis Armstrong

dom. 9/7

4:51 pm-3:04 pm

1 stop22h 13m

$223

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

sáb. 10/18

7:52 pm-6:38 pm

1 stop22h 46m

New Orleans Louis Armstrong

lun. 10/20

7:35 pm-9:07 am

1 stop13h 32m

$243

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

sáb. 8/30

3:02 pm-12:05 pm

1 stop21h 03m

New Orleans Louis Armstrong

jue. 9/4

4:51 pm-1:02 pm

2 stops20h 11m

$257

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 cheapest month to fly to New Orleans?

The cheapest month to fly to New Orleans from St. Louis is in November. 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 November, then departing from St. Louis during the month June is also very affordable. Most momondo users find prices during this month for around $350.

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 $362. 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 $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 $371. 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 $392 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 $283 on momondo.

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

There are 1 cabin classes 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 20% 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 August 2025, prices for St. Louis to New Orleans flights are approximately 57% 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

$73

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 $73. The best round-trip flight deal from St. Louis to New Orleans found on momondo in the last 72 hours is $161.
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 near New Orleans: 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 5h 06m 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 $127Free CancellationRating
5.8
3,212 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $187Free CancellationRating
6.3
8,038 reviews
Search Spirit Airlines flights
DeltaPriceFrom $196Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $212Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
SouthwestPriceFrom $241Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
10,000 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 12 flights/week on average for this route. A good Southwest flight deal for St. Louis to New Orleans starts from $241 round-trip, up to an average price of $416. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From St. Louis to New Orleans

    United Airlines is also a popular choice for this route. United Airlines flight deals for St. Louis to New Orleans start from as low as $212 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $359. United Airlines operates 2 flights to New Orleans from St. Louis in an average week. Users have rated it 7.4/10 across 8,925 reviews.

Traveling to a place near New Orleans?

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