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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 10/17. 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

Logo
6:27 pm - 9:07 amMSY-STL
14h 40m1 stop
Logo
10:57 am - 6:50 pmSTL-MSY
7h 53m1 stop
$175
Find Deal
Fri, Oct 17 - Sun, Oct 19
Spirit Airlines Logo
6:40 am - 6:10 pmMSY-STL
11h 30m1 stop
Spirit Airlines Logo
10:57 am - 5:05 pmSTL-MSY
6h 08m1 stop
$180Spirit Airlines
Find Deal
Sat, Oct 11 - Sun, Oct 26
Logo
2:58 pm - 3:04 pmMSY-STL
24h 06m1 stop
Logo
11:32 am - 6:59 pmSTL-MSY
7h 27m1 stop
$189
Find Deal
Sun, Oct 5 - Thu, Oct 9
Spirit Airlines Logo
8:22 pm - 10:02 amMSY-STL
13h 40m1 stop
Spirit Airlines Logo
10:57 am - 6:50 pmSTL-MSY
7h 53m1 stop
$194Spirit Airlines
Find Deal
Wed, Oct 8 - Thu, Oct 16
Logo
5:52 pm - 9:06 amMSY-STL
15h 14m2 stops
Logo
10:35 am - 8:54 pmSTL-MSY
10h 19m1 stop
$197
Find Deal
Mon, Sep 22 - Thu, Sep 25
Logo
10:01 pm - 3:04 pmMSY-STL
17h 03m2 stops
Logo
10:35 am - 8:54 pmSTL-MSY
10h 19m1 stop
$200
Find Deal
Sat, Sep 20 - Thu, Sep 25
Logo
8:19 pm - 9:40 amMSY-STL
13h 21m1 stop
Logo
4:00 pm - 2:45 pmSTL-MSY
22h 45m1 stop
$202
Find Deal
Wed, Sep 17 - Thu, Sep 18
Spirit Airlines Logo
8:22 pm - 10:02 amMSY-STL
13h 40m1 stop
Spirit Airlines Logo
7:15 pm - 8:07 amSTL-MSY
12h 52m1 stop
$208Spirit Airlines
Find Deal
Wed, Oct 8 - Sat, Oct 11
Southwest Logo
2:40 pm - 4:25 pmMSY-STL
1h 45mnonstop
Southwest Logo
8:15 am - 12:00 pmSTL-MSY
3h 45m1 stop
$259Southwest
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Wed, Oct 8 - Wed, Oct 15
Delta Logo
10:32 am - 3:55 pmMSY-STL
5h 23m1 stop
Delta Logo
3:59 pm - 11:04 pmSTL-MSY
7h 05m1 stop
$263Delta
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Tue, Oct 7 - Wed, Oct 15

United Airlines flights from New Orleans to St. Louis

Our best United Airlines deals on New Orleans to St. Louis flight tickets
United Airlines
Sep 5
MSY2:20 pmNew Orleans Louis Armstrong
7h 12m
1 stop
STL9:32 pmLambert-St Louis
Sep 7
STL8:10 amLambert-St Louis
11h 03m
2 stops
MSY7:13 pmNew Orleans Louis Armstrong
$616
Find similar
United Airlines
Sep 5
MSY7:00 amNew Orleans Louis Armstrong
11h 23m
2 stops
STL6:23 pmLambert-St Louis
Sep 7
STL8:10 amLambert-St Louis
11h 03m
2 stops
MSY7:13 pmNew Orleans Louis Armstrong
$621
Find similar
United Airlines
Sep 5
MSY10:15 amNew Orleans Louis Armstrong
11h 17m
3 stops
STL9:32 pmLambert-St Louis
Sep 7
STL6:35 amLambert-St Louis
9h 25m
2 stops
MSY4:00 pmNew Orleans Louis Armstrong
$626
Find similar

American Airlines flights from New Orleans to St. Louis

Our best American Airlines deals on New Orleans to St. Louis flight tickets
American Airlines
Sep 3
MSY12:19 pmNew Orleans Louis Armstrong
6h 13m
1 stop
STL6:32 pmLambert-St Louis
Sep 6
STL3:59 pmLambert-St Louis
7h 01m
1 stop
MSY11:00 pmNew Orleans Louis Armstrong
$407
Find similar
American Airlines
Aug 29
MSY6:15 pmNew Orleans Louis Armstrong
4h 44m
1 stop
STL10:59 pmLambert-St Louis
Aug 30
STL5:15 amLambert-St Louis
5h 03m
1 stop
MSY10:18 amNew Orleans Louis Armstrong
$463
Find similar
American Airlines
Sep 4
MSY10:10 amNew Orleans Louis Armstrong
11h 00m
1 stop
STL9:10 pmLambert-St Louis
Sep 5
STL6:00 amLambert-St Louis
10h 33m
1 stop
MSY4:33 pmNew Orleans Louis Armstrong
$479
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 August 28, 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

Fri 10/17

6:27 pm-9:07 am

1 stop14h 40m

Lambert-St Louis

Sun 10/19

10:57 am-6:50 pm

1 stop7h 53m

$175

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/11

6:40 am-6:10 pm

1 stop11h 30m

Lambert-St Louis

Sun 10/26

10:57 am-5:05 pm

1 stop6h 08m

$180

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sun 10/5

2:58 pm-3:04 pm

1 stop24h 06m

Lambert-St Louis

Thu 10/9

11:32 am-6:59 pm

1 stop7h 27m

$189

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/8

8:22 pm-10:02 am

1 stop13h 40m

Lambert-St Louis

Thu 10/16

10:57 am-6:50 pm

1 stop7h 53m

$194

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 9/22

5:52 pm-9:06 am

2 stops15h 14m

Lambert-St Louis

Thu 9/25

10:35 am-8:54 pm

1 stop10h 19m

$197

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 9/20

10:01 pm-3:04 pm

2 stops17h 03m

Lambert-St Louis

Thu 9/25

10:35 am-8:54 pm

1 stop10h 19m

$200

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 9/17

8:19 pm-9:40 am

1 stop13h 21m

Lambert-St Louis

Thu 9/18

4:00 pm-2:45 pm

1 stop22h 45m

$202

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/8

8:22 pm-10:02 am

1 stop13h 40m

Lambert-St Louis

Sat 10/11

7:15 pm-8:07 am

1 stop12h 52m

$208

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/8

2:40 pm-4:25 pm

Nonstop1h 45m

Lambert-St Louis

Wed 10/15

8:15 am-12:00 pm

1 stop3h 45m

$259

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 10/7

10:32 am-3:55 pm

1 stop5h 23m

Lambert-St Louis

Wed 10/15

3:59 pm-11:04 pm

1 stop7h 05m

$263

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, November 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 $313. 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 Thursday when prices can be found for as low as $380. 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 $504. 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 $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

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 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $369 when searching 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 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 22% 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 August 2025, prices for New Orleans to St. Louis flights are approximately 3% 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

$100

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 $100. The best round-trip flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $268.
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 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
DeltaPriceFrom $198Free CancellationRating
7.9
7,977 reviews
Search Delta flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,242 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 8 flights on this route every week with an average price of $409. 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
Maryland Heights
Florissant
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
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

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.
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