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Cheap flights from New Orleans to St. Louis from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Orleans to St. Louis departing on 2/6. 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

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Find the cheapest flights from New Orleans to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:33 pm - 6:44 pm
MSY
-
STL
23h 11m1 stop
Multiple Airlines Logo
10:16 am - 8:22 am
STL
-
MSY
22h 06m2 stops
$169Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
6:23 pm - 1:56 pm
MSY
-
STL
19h 33m1 stop
Multiple Airlines Logo
3:49 pm - 10:58 pm
STL
-
MSY
7h 09m1 stop
$170Multiple Airlines
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
7:33 pm - 6:44 pm
MSY
-
STL
23h 11m1 stop
Multiple Airlines Logo
9:45 pm - 5:24 am
STL
-
MSY
31h 39m1 stop
$174Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
7:33 pm - 6:44 pm
MSY
-
STL
23h 11m1 stop
Frontier Logo
5:42 pm - 6:30 pm
STL
-
MSY
24h 48m2 stops
$177Frontier
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
7:33 pm - 6:44 pm
MSY
-
STL
23h 11m1 stop
Multiple Airlines Logo
5:42 pm - 7:41 pm
STL
-
MSY
25h 59m1 stop
$184Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
6:05 am - 11:33 pm
MSY
-
STL
17h 28m2 stops
Multiple Airlines Logo
12:12 pm - 7:41 pm
STL
-
MSY
7h 29m1 stop
$187Multiple Airlines
Thu, Jan 29 - Sat, Jan 31
Multiple Airlines Logo
8:36 pm - 10:23 am
MSY
-
STL
13h 47m1 stop
Multiple Airlines Logo
12:12 pm - 7:41 pm
STL
-
MSY
7h 29m1 stop
$199Multiple Airlines
Thu, Jan 29 - Sat, Jan 31
Multiple Airlines Logo
10:43 am - 12:27 am
MSY
-
STL
13h 44m2 stops
Multiple Airlines Logo
2:51 pm - 1:39 pm
STL
-
MSY
22h 48m1 stop
$203Multiple Airlines
Fri, Feb 27 - Sat, Feb 28
Frontier Logo
5:44 pm - 6:32 pm
MSY
-
STL
24h 48m1 stop
Frontier Logo
3:46 pm - 6:48 pm
STL
-
MSY
27h 02m1 stop
$204Frontier
Thu, Jan 15 - Wed, Jan 21
Frontier Logo
7:33 pm - 6:44 pm
MSY
-
STL
23h 11m1 stop
Frontier Logo
3:49 pm - 10:37 pm
STL
-
MSY
30h 48m2 stops
$208Frontier
Thu, Feb 5 - Tue, Feb 10

Frontier flights from New Orleans to St. Louis

Our best Frontier deals on New Orleans to St. Louis flight tickets
Frontier
Feb 5
MSY7:33 pmNew Orleans Louis Armstrong
23h 11m
1 stop
STL6:44 pmLambert-St Louis
Feb 9
STL5:42 pmLambert-St Louis
24h 48m
2 stops
MSY6:30 pmNew Orleans Louis Armstrong
$177
Find similar
Frontier
Jan 15
MSY5:44 pmNew Orleans Louis Armstrong
24h 48m
1 stop
STL6:32 pmLambert-St Louis
Jan 21
STL3:46 pmLambert-St Louis
27h 02m
1 stop
MSY6:48 pmNew Orleans Louis Armstrong
$204
Find similar
Frontier
Feb 5
MSY7:33 pmNew Orleans Louis Armstrong
23h 11m
1 stop
STL6:44 pmLambert-St Louis
Feb 10
STL3:49 pmLambert-St Louis
30h 48m
2 stops
MSY10:37 pmNew Orleans Louis Armstrong
$208
Find similar

United Airlines flights from New Orleans to St. Louis

Our best United Airlines deals on New Orleans to St. Louis flight tickets
United Airlines
Feb 4
MSY5:39 pmNew Orleans Louis Armstrong
4h 21m
1 stop
STL10:00 pmLambert-St Louis
Feb 10
STL10:07 amLambert-St Louis
6h 30m
1 stop
MSY4:37 pmNew Orleans Louis Armstrong
$261
Find similar
United Airlines
Feb 5
MSY12:40 pmNew Orleans Louis Armstrong
10h 18m
2 stops
STL10:58 pmLambert-St Louis
Feb 10
STL8:05 amLambert-St Louis
11h 40m
2 stops
MSY7:45 pmNew Orleans Louis Armstrong
$378
Find similar
United Airlines
Jan 15
MSY5:00 amNew Orleans Louis Armstrong
7h 29m
2 stops
STL12:29 pmLambert-St Louis
Jan 21
STL8:05 amLambert-St Louis
8h 32m
2 stops
MSY4:37 pmNew Orleans Louis Armstrong
$388
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from New Orleans to St. Louis 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 January 6, 2026.
Use the filters below to find and compare flights from New Orleans to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-6:44 pm

1 stop23h 11m

Lambert-St Louis

Mon 2/9

10:16 am-8:22 am

2 stops22h 06m

$169

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 2/27

6:23 pm-1:56 pm

1 stop19h 33m

Lambert-St Louis

Sun 3/1

3:49 pm-10:58 pm

1 stop7h 09m

$170

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-6:44 pm

1 stop23h 11m

Lambert-St Louis

Mon 2/9

9:45 pm-5:24 am

1 stop31h 39m

$174

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-6:44 pm

1 stop23h 11m

Lambert-St Louis

Mon 2/9

5:42 pm-6:30 pm

2 stops24h 48m

$177

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-6:44 pm

1 stop23h 11m

Lambert-St Louis

Mon 2/9

5:42 pm-7:41 pm

1 stop25h 59m

$184

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 1/29

6:05 am-11:33 pm

2 stops17h 28m

Lambert-St Louis

Sat 1/31

12:12 pm-7:41 pm

1 stop7h 29m

$187

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 1/29

8:36 pm-10:23 am

1 stop13h 47m

Lambert-St Louis

Sat 1/31

12:12 pm-7:41 pm

1 stop7h 29m

$199

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 2/27

10:43 am-12:27 am

2 stops13h 44m

Lambert-St Louis

Sat 2/28

2:51 pm-1:39 pm

1 stop22h 48m

$203

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 1/15

5:44 pm-6:32 pm

1 stop24h 48m

Lambert-St Louis

Wed 1/21

3:46 pm-6:48 pm

1 stop27h 02m

$204

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-6:44 pm

1 stop23h 11m

Lambert-St Louis

Tue 2/10

3:49 pm-10:37 pm

2 stops30h 48m

$208

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 St. Louis from

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

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 St. Louis?

In general, August is the cheapest month to fly from New Orleans to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $340. The month of May is another great option to travel to St. Louis, with average flight prices from New Orleans averaging around $342.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $360. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $534. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from New Orleans at noon is the least expensive time of day to depart. momondo users have found prices as low as $377 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $394 per ticket.

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

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

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

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

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

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

As of January 2026, prices for New Orleans to St. Louis flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from New Orleans to St. Louis

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

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

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

Fastest flight time

1h 50m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from New Orleans to St. Louis takes 1h 50m
Direct flights go from New Orleans to St. Louis every day.
There is 1 airport in St. Louis. From New Orleans there are direct flights to Lambert-St Louis (STL).
Search flight deals

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

    The distance between New Orleans Louis Armstrong and Lambert-St Louis is about 599.0 mi. Flights usually cover this in 1h 50m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from New Orleans Louis Armstrong Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from New Orleans to St. Louis

Compare and see reviews for airlines that fly from New Orleans to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $72Free CancellationRating
5.7
3,064 reviews
Search Frontier flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,132 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,083 reviews
Search American Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,247 reviews
Search Southwest flights

  • Southwest Flights From New Orleans to St. Louis

    The lowest priced Southwest flight from New Orleans to St. Louis from the last 72 hours was $278. Generally, Southwest has 3 flights on this route every week with an average price of $390. Southwest is rated 8.0/10 by our users.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
O'Fallon
Maryland Heights
Florissant
Fenton
Collinsville
St. Peters
Wentzville
Alton
Farmington
Clayton
Eureka
Festus
Edwardsville
Glencoe
Litchfield
Shrewsbury

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from New Orleans.

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

Yes. All flights to St. Louis from New Orleans on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential New Orleans to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from New Orleans to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

An easier way to manage your St. Louis trip

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