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Cheap flights from New Orleans to St. Louis from $63

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 1/23. 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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Cheap round-trip flights

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Multiple Airlines Logo
7:00 am - 11:33 pmMSY-STL
16h 33m1 stop
Multiple Airlines Logo
5:42 pm - 10:07 amSTL-MSY
16h 25m1 stop
$134Multiple Airlines
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Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
7:27 pm - 11:33 pmMSY-STL
28h 06m2 stops
Multiple Airlines Logo
4:45 pm - 8:58 amSTL-MSY
16h 13m1 stop
$171Multiple Airlines
Find Deal
Wed, Jan 28 - Sat, Jan 31
Multiple Airlines Logo
7:00 am - 11:33 pmMSY-STL
16h 33m1 stop
Multiple Airlines Logo
3:46 pm - 9:42 amSTL-MSY
17h 56m2 stops
$172Multiple Airlines
Find Deal
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
7:38 pm - 2:46 pmMSY-STL
19h 08m1 stop
Multiple Airlines Logo
4:45 pm - 10:58 pmSTL-MSY
6h 13m1 stop
$175Multiple Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 1
Multiple Airlines Logo
7:00 am - 11:33 pmMSY-STL
16h 33m1 stop
Multiple Airlines Logo
3:46 pm - 6:48 pmSTL-MSY
27h 02m1 stop
$178Multiple Airlines
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Wed, Jan 28 - Sat, Jan 31
Frontier Logo
11:02 am - 11:33 pmMSY-STL
12h 31m1 stop
Frontier Logo
4:45 pm - 6:00 pmSTL-MSY
25h 15m2 stops
$188Frontier
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Fri, Jan 30 - Sun, Feb 1
American Airlines Logo
3:04 pm - 10:56 pmMSY-STL
7h 52m1 stop
American Airlines Logo
7:00 am - 4:37 pmSTL-MSY
9h 37m1 stop
$225American Airlines
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Thu, Dec 25 - Thu, Jan 1
Multiple Airlines Logo
6:40 am - 10:56 amMSY-STL
28h 16m1 stop
Multiple Airlines Logo
10:40 am - 8:47 amSTL-MSY
22h 07m2 stops
$242Multiple Airlines
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Sat, Dec 20 - Mon, Jan 5
Multiple Airlines Logo
5:22 pm - 10:33 pmMSY-STL
29h 11m2 stops
Multiple Airlines Logo
11:51 am - 11:59 pmSTL-MSY
12h 08m1 stop
$254Multiple Airlines
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Thu, Dec 25 - Thu, Jan 1
Multiple Airlines Logo
5:05 am - 10:33 pmMSY-STL
17h 28m1 stop
Multiple Airlines Logo
4:27 pm - 11:59 pmSTL-MSY
31h 32m2 stops
$265Multiple Airlines
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Fri, Dec 19 - Mon, Jan 5

Delta flights from New Orleans to St. Louis

Our best Delta deals on New Orleans to St. Louis flight tickets
Delta
Jan 22
MSY12:55 pmNew Orleans Louis Armstrong
4h 55m
1 stop
STL5:50 pmLambert-St Louis
Jan 26
STL6:00 amLambert-St Louis
5h 51m
1 stop
MSY11:51 amNew Orleans Louis Armstrong
$285
Find similar
Delta
Jan 22
MSY9:57 amNew Orleans Louis Armstrong
4h 52m
1 stop
STL2:49 pmLambert-St Louis
Jan 26
STL7:10 amLambert-St Louis
7h 14m
1 stop
MSY2:24 pmNew Orleans Louis Armstrong
$325
Find similar
Delta
Mar 6
MSY5:41 pmNew Orleans Louis Armstrong
5h 55m
1 stop
STL11:36 pmLambert-St Louis
Mar 15
STL10:02 amLambert-St Louis
4h 21m
1 stop
MSY2:23 pmNew Orleans Louis Armstrong
$426
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
Jan 22
MSY12:40 pmNew Orleans Louis Armstrong
10h 18m
2 stops
STL10:58 pmLambert-St Louis
Jan 26
STL6:00 amLambert-St Louis
4h 52m
1 stop
MSY10:52 amNew Orleans Louis Armstrong
$360
Find similar
United Airlines
Dec 16
MSY5:15 amNew Orleans Louis Armstrong
7h 00m
2 stops
STL12:15 pmLambert-St Louis
Dec 18
STL8:05 amLambert-St Louis
8h 10m
1 stop
MSY4:15 pmNew Orleans Louis Armstrong
$392
Find similar
United Airlines
Apr 12
MSY5:00 amNew Orleans Louis Armstrong
4h 28m
1 stop
STL9:28 amLambert-St Louis
Apr 14
STL11:25 amLambert-St Louis
7h 58m
2 stops
MSY7:23 pmNew Orleans Louis Armstrong
$405
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 November 26, 2025.
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

Wed 1/21

7:00 am-11:33 pm

1 stop16h 33m

Lambert-St Louis

Wed 1/28

5:42 pm-10:07 am

1 stop16h 25m

$134

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 1/28

7:27 pm-11:33 pm

2 stops28h 06m

Lambert-St Louis

Sat 1/31

4:45 pm-8:58 am

1 stop16h 13m

$171

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 1/21

7:00 am-11:33 pm

1 stop16h 33m

Lambert-St Louis

Wed 1/28

3:46 pm-9:42 am

2 stops17h 56m

$172

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 1/30

7:38 pm-2:46 pm

1 stop19h 08m

Lambert-St Louis

Sun 2/1

4:45 pm-10:58 pm

1 stop6h 13m

$175

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 1/28

7:00 am-11:33 pm

1 stop16h 33m

Lambert-St Louis

Sat 1/31

3:46 pm-6:48 pm

1 stop27h 02m

$178

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 1/30

11:02 am-11:33 pm

1 stop12h 31m

Lambert-St Louis

Sun 2/1

4:45 pm-6:00 pm

2 stops25h 15m

$188

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/25

3:04 pm-10:56 pm

1 stop7h 52m

Lambert-St Louis

Thu 1/1

7:00 am-4:37 pm

1 stop9h 37m

$225

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 12/20

6:40 am-10:56 am

1 stop28h 16m

Lambert-St Louis

Mon 1/5

10:40 am-8:47 am

2 stops22h 07m

$242

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/25

5:22 pm-10:33 pm

2 stops29h 11m

Lambert-St Louis

Thu 1/1

11:51 am-11:59 pm

1 stop12h 08m

$254

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 12/19

5:05 am-10:33 pm

1 stop17h 28m

Lambert-St Louis

Mon 1/5

4:27 pm-11:59 pm

2 stops31h 32m

$265

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

What is the cheapest month to fly to St. Louis?

In general, December 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 $318. 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 Tuesday when prices can be found for as low as $356. 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 $531. 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 $396 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?

You could potentially save up to 16% on your flight if you consider stops on a New Orleans to St. Louis flight.

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

As of November 2025, prices for New Orleans to St. Louis flights are approximately 97% more expensive 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

Best Price Found

$191

Fastest flight time

1h 45m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from New Orleans in the past 72 hours is $191. The best round-trip flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $333.
The fastest flight from New Orleans to St. Louis takes 1h 45m
Direct flights go from New Orleans to St. Louis on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport near St. Louis: 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 45m, 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
5.8
3,099 reviews
Search Frontier flights
DeltaPriceFrom $196Free CancellationRating
7.9
7,999 reviews
Search Delta flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,254 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 12 flights on this route every week with an average price of $391. 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
Florissant
Maryland Heights
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
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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