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Cheap flights from New Orleans to St. Louis from $77

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 11/14. 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
4:35 pm - 9:47 amMSY-STL
17h 12m1 stop
Multiple Airlines Logo
10:42 am - 4:17 pmSTL-MSY
5h 35m1 stop
$180Multiple Airlines
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Thu, Dec 4 - Sun, Dec 7
Spirit Airlines Logo
5:10 am - 11:01 amMSY-STL
5h 51m1 stop
Spirit Airlines Logo
12:20 pm - 10:05 pmSTL-MSY
9h 45m1 stop
$182Spirit Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
Multiple Airlines Logo
3:21 pm - 10:12 amMSY-STL
18h 51m1 stop
Multiple Airlines Logo
6:21 pm - 8:35 amSTL-MSY
14h 14m1 stop
$194Multiple Airlines
Find Deal
Sat, Nov 8 - Sun, Nov 9
Delta Logo
11:29 am - 5:09 pmMSY-STL
5h 40m1 stop
Delta Logo
8:00 am - 2:18 pmSTL-MSY
6h 18m1 stop
$219Delta
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Tue, Nov 18 - Sat, Dec 6
Southwest Logo
3:10 pm - 9:00 pmMSY-STL
5h 50m1 stop
Southwest Logo
3:50 pm - 9:55 pmSTL-MSY
6h 05m2 stops
$224Southwest
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Thu, Dec 4 - Sun, Dec 7
Southwest Logo
11:55 am - 5:20 pmMSY-STL
5h 25m2 stops
Southwest Logo
1:45 pm - 8:15 pmSTL-MSY
6h 30m2 stops
$229Southwest
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Tue, Nov 18 - Sat, Dec 6
United Airlines Logo
5:05 am - 9:23 amMSY-STL
4h 18m1 stop
United Airlines Logo
6:00 am - 10:59 amSTL-MSY
4h 59m1 stop
$289United Airlines
Find Deal
Thu, Feb 19 - Sun, Feb 22
United Airlines Logo
5:15 am - 12:15 pmMSY-STL
7h 00m2 stops
United Airlines Logo
6:15 am - 1:12 pmSTL-MSY
6h 57m1 stop
$294United Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
American Airlines Logo
5:17 am - 6:22 pmMSY-STL
13h 05m1 stop
American Airlines Logo
6:52 am - 1:17 pmSTL-MSY
6h 25m1 stop
$309American Airlines
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Fri, Oct 31 - Tue, Nov 4
American Airlines Logo
5:15 am - 12:37 pmMSY-STL
7h 22m1 stop
American Airlines Logo
6:45 pm - 12:07 amSTL-MSY
5h 22m1 stop
$317American Airlines
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Wed, Nov 19 - Fri, Nov 21

Delta flights from New Orleans to St. Louis

Our best Delta deals on New Orleans to St. Louis flight tickets
Delta
Nov 18
MSY11:29 amNew Orleans Louis Armstrong
5h 40m
1 stop
STL5:09 pmLambert-St Louis
Dec 6
STL8:00 amLambert-St Louis
6h 18m
1 stop
MSY2:18 pmNew Orleans Louis Armstrong
$219
Find similar
Delta
Oct 28
MSY7:45 amNew Orleans Louis Armstrong
4h 50m
1 stop
STL12:35 pmLambert-St Louis
Nov 1
STL1:30 pmLambert-St Louis
4h 40m
1 stop
MSY6:10 pmNew Orleans Louis Armstrong
$399
Find similar
Delta
Oct 25
MSY5:20 amNew Orleans Louis Armstrong
3h 55m
1 stop
STL9:15 amLambert-St Louis
Oct 28
STL6:00 amLambert-St Louis
4h 45m
1 stop
MSY10:45 amNew Orleans Louis Armstrong
$515
Find similar

Southwest flights from New Orleans to St. Louis

Our best Southwest deals on New Orleans to St. Louis flight tickets
Southwest
Dec 4
MSY3:10 pmNew Orleans Louis Armstrong
5h 50m
1 stop
STL9:00 pmLambert-St Louis
Dec 7
STL3:50 pmLambert-St Louis
6h 05m
2 stops
MSY9:55 pmNew Orleans Louis Armstrong
$224
Find similar
Southwest
Nov 18
MSY11:55 amNew Orleans Louis Armstrong
5h 25m
2 stops
STL5:20 pmLambert-St Louis
Dec 6
STL1:45 pmLambert-St Louis
6h 30m
2 stops
MSY8:15 pmNew Orleans Louis Armstrong
$229
Find similar
Southwest
Nov 18
MSY5:30 pmNew Orleans Louis Armstrong
1h 50m
STL7:20 pmLambert-St Louis
Dec 6
STL6:25 amLambert-St Louis
4h 30m
1 stop
MSY10:55 amNew Orleans Louis Armstrong
$258
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 October 16, 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

Thu 12/4

4:35 pm-9:47 am

1 stop17h 12m

Lambert-St Louis

Sun 12/7

10:42 am-4:17 pm

1 stop5h 35m

$180

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 1/8

5:10 am-11:01 am

1 stop5h 51m

Lambert-St Louis

Sun 1/11

12:20 pm-10:05 pm

1 stop9h 45m

$182

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 11/8

3:21 pm-10:12 am

1 stop18h 51m

Lambert-St Louis

Sun 11/9

6:21 pm-8:35 am

1 stop14h 14m

$194

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 11/18

11:29 am-5:09 pm

1 stop5h 40m

Lambert-St Louis

Sat 12/6

8:00 am-2:18 pm

1 stop6h 18m

$219

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/4

3:10 pm-9:00 pm

1 stop5h 50m

Lambert-St Louis

Sun 12/7

3:50 pm-9:55 pm

2 stops6h 05m

$224

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 11/18

11:55 am-5:20 pm

2 stops5h 25m

Lambert-St Louis

Sat 12/6

1:45 pm-8:15 pm

2 stops6h 30m

$229

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/19

5:05 am-9:23 am

1 stop4h 18m

Lambert-St Louis

Sun 2/22

6:00 am-10:59 am

1 stop4h 59m

$289

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 12/10

5:15 am-12:15 pm

2 stops7h 00m

Lambert-St Louis

Tue 12/16

6:15 am-1:12 pm

1 stop6h 57m

$294

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 10/31

5:17 am-6:22 pm

1 stop13h 05m

Lambert-St Louis

Tue 11/4

6:52 am-1:17 pm

1 stop6h 25m

$309

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 11/19

5:15 am-12:37 pm

1 stop7h 22m

Lambert-St Louis

Fri 11/21

6:45 pm-12:07 am

1 stop5h 22m

$317

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 November is another great option to travel to St. Louis, with average flight prices from New Orleans averaging around $339.

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 $372. 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 in the morning is the least expensive time of day to depart. momondo users have found prices as low as $391 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $571 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 October 2025, prices for New Orleans to St. Louis flights are approximately 55% 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

$124

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 $124. The best round-trip flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $331.
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)
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
5.8
3,137 reviews
Search Frontier flights
DeltaPriceFrom $198Free CancellationRating
7.9
7,984 reviews
Search Delta flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,241 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 15 flights on this route every week with an average price of $395. 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
Collinsville
Fenton
St. Peters
Alton
Farmington
Festus
Glencoe
Clayton
Edwardsville
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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Sat 11/15
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