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Cheap flights from New Orleans to St. Louis from $105

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 4/27. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from New Orleans to St. Louis.
Frontier Logo
7:50 pm - 9:09 amMSY-STL
13h 19m1 stop
Frontier Logo
6:53 pm - 5:25 pmSTL-MSY
22h 32m1 stop
$199Frontier
Find Deal
Thu, May 1 - Mon, May 5
Frontier Logo
12:10 pm - 12:14 amMSY-STL
12h 04m1 stop
Frontier Logo
6:53 pm - 5:25 pmSTL-MSY
22h 32m1 stop
$200Frontier
Find Deal
Fri, May 9 - Mon, May 12
 Logo
12:10 pm - 12:14 amMSY-STL
12h 04m1 stop
 Logo
10:10 am - 7:10 pmSTL-MSY
9h 00m1 stop
Fri, May 9 - Sun, May 11
Delta Logo
5:30 am - 11:45 amMSY-STL
6h 15m1 stop
Delta Logo
7:10 am - 11:51 amSTL-MSY
4h 41m1 stop
$288Delta
Find Deal
Thu, May 1 - Tue, May 6
Delta Logo
12:59 pm - 6:02 pmMSY-STL
5h 03m1 stop
Delta Logo
5:32 pm - 11:33 pmSTL-MSY
6h 01m1 stop
$298Delta
Find Deal
Wed, Apr 23 - Mon, Apr 28
United Airlines Logo
5:30 pm - 10:15 pmMSY-STL
4h 45m1 stop
United Airlines Logo
5:27 pm - 10:10 pmSTL-MSY
4h 43m1 stop
$310United Airlines
Find Deal
Thu, May 29 - Mon, Jun 2
Southwest Logo
7:40 am - 9:30 amMSY-STL
1h 50mnonstop
Southwest Logo
5:25 pm - 7:10 pmSTL-MSY
1h 45mnonstop
$322Southwest
Find Deal
Thu, Apr 24 - Mon, Apr 28
Southwest Logo
7:05 am - 8:55 amMSY-STL
1h 50mnonstop
Southwest Logo
6:40 pm - 8:25 pmSTL-MSY
1h 45mnonstop
$344Southwest
Find Deal
Sun, Apr 27 - Tue, Apr 29
United Airlines Logo
5:15 am - 2:37 pmMSY-STL
9h 22m2 stops
United Airlines Logo
5:30 pm - 10:25 pmSTL-MSY
4h 55m1 stop
$356United Airlines
Find Deal
Tue, Jul 29 - Fri, Aug 1
American Airlines Logo
5:15 am - 12:53 pmMSY-STL
7h 38m1 stop
American Airlines Logo
6:00 pm - 11:31 pmSTL-MSY
5h 31m1 stop
$383American Airlines
Find Deal
Fri, Apr 25 - Sun, Apr 27

Frontier flights from New Orleans to St. Louis

Our best Frontier deals on New Orleans to St. Louis flight tickets
Frontier
May 1
MSY7:50 pmNew Orleans Louis Armstrong
13h 19m
1 stop
STL9:09 amLambert-St Louis
May 5
STL6:53 pmLambert-St Louis
22h 32m
1 stop
MSY5:25 pmNew Orleans Louis Armstrong
Frontier
May 9
MSY12:10 pmNew Orleans Louis Armstrong
12h 04m
1 stop
STL12:14 amLambert-St Louis
May 12
STL6:53 pmLambert-St Louis
22h 32m
1 stop
MSY5:25 pmNew Orleans Louis Armstrong
Frontier
Apr 8
MSY1:32 pmNew Orleans Louis Armstrong
10h 14m
1 stop
STL11:46 pmLambert-St Louis
Apr 30
STL6:58 pmLambert-St Louis
23h 52m
1 stop
MSY6:50 pmNew Orleans Louis Armstrong

Spirit Airlines flights from New Orleans to St. Louis

Our best Spirit Airlines deals on New Orleans to St. Louis flight tickets
Spirit Airlines
May 9
MSY8:05 pmNew Orleans Louis Armstrong
13h 10m
1 stop
STL9:15 amLambert-St Louis
May 11
STL10:10 amLambert-St Louis
33h 55m
2 stops
MSY8:05 pmNew Orleans Louis Armstrong
Spirit Airlines
May 9
MSY5:14 pmNew Orleans Louis Armstrong
16h 01m
2 stops
STL9:15 amLambert-St Louis
May 11
STL10:10 amLambert-St Louis
33h 55m
2 stops
MSY8:05 pmNew Orleans Louis Armstrong
Spirit Airlines
Apr 21
MSY9:31 pmNew Orleans Louis Armstrong
19h 44m
1 stop
STL5:15 pmLambert-St Louis
Apr 24
STL6:10 pmLambert-St Louis
26h 16m
1 stop
MSY8:26 pmNew Orleans Louis Armstrong

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, July 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 $247. The month of August is another great option to travel to St. Louis, with average flight prices from New Orleans averaging around $254.

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 Thursday when prices can be found for as low as $379. 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 $486. 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 in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $395 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $551 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

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

You are more likely to see cheaper flights to St. Louis from New Orleans when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $331 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from New Orleans for as low as $248 on momondo.

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

There are 1 cabin classes 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.

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

As of April 2025, prices for New Orleans to St. Louis flights are approximately 15% 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

$105

Fastest flight time

1h 45m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from New Orleans in the past 72 hours is $105. The best round-trip flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $199.
The fastest flight from New Orleans to St. Louis takes 1h 45m
Direct flights go from New Orleans to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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
Spirit AirlinesPriceFrom $106Free CancellationRating
6.3
7,886 reviews
Search Spirit Airlines flights
FrontierPriceFrom $134Free CancellationRating
5.9
3,277 reviews
Search Frontier flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $188Free CancellationRating
7.4
8,615 reviews
Search United Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
7,899 reviews
Search Delta flights
SouthwestPriceFrom $307Free CancellationRating
8.0
4,275 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 $307. Generally, Southwest has 10 flights on this route every week with an average price of $420. 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
Florissant
Fairview Heights
Maryland Heights
Hermann
Collinsville
Fenton
Farmington
O'Fallon
St. Peters
Wentzville
Alton
Glencoe
Eureka
Festus
Edwardsville
Clayton
Grafton
Litchfield

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.


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