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Cheap flights from New Orleans to St. Louis from $62

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 10/7. 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
1 adult, Economy, 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.
Frontier Logo
5:17 pm - 1:10 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
19h 53m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
2:29 pm - 4:22 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
25h 53m1 stop Atlanta Hartsfield-Jackson
$131Frontier
Thu, Sep 10 - Mon, Sep 14
Frontier Logo
5:02 pm - 9:40 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
16h 38m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
10:35 am - 4:07 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
5h 32m1 stop Atlanta Hartsfield-Jackson
$161Frontier
Thu, Oct 22 - Sun, Oct 25
Multiple Airlines Logo
8:00 am - 9:40 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
25h 40m2 stops Orlando Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:35 am - 4:03 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
5h 28m1 stop Atlanta Hartsfield-Jackson
$228Multiple Airlines
Wed, Nov 11 - Sun, Nov 15
Multiple Airlines Logo
8:00 am - 3:28 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
7h 28m1 stop Orlando
Multiple Airlines Logo
6:17 pm - 6:02 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
23h 45m1 stop Atlanta Hartsfield-Jackson
$266Multiple Airlines
Fri, Aug 28 - Sun, Aug 30
Southwest Logo
9:55 am - 4:40 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
6h 45m1 stop Houston Hobby
Southwest Logo
3:40 pm - 5:25 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 45mnonstop
$289Southwest
Sat, Sep 5 - Sun, Sep 6
Southwest Logo
7:35 am - 9:20 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
1h 45mnonstop
Southwest Logo
3:40 pm - 5:25 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 45mnonstop
$297Southwest
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
12:29 pm - 6:05 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 36m1 stop Dallas/Fort Worth
American Airlines Logo
10:16 am - 9:46 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
11h 30m1 stop Dallas/Fort Worth
$316American Airlines
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
12:22 pm - 6:03 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 41m1 stop Dallas/Fort Worth
American Airlines Logo
8:30 am - 2:55 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
6h 25m1 stop Dallas/Fort Worth
$329American Airlines
Thu, Sep 24 - Tue, Sep 29
Delta Logo
4:58 pm - 9:33 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
4h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:37 pm - 11:46 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
6h 09m1 stop Atlanta Hartsfield-Jackson
$329Delta
Thu, Dec 10 - Tue, Dec 15
Delta Logo
12:47 pm - 6:27 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:42 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
4h 42m1 stop Atlanta Hartsfield-Jackson
$329Delta
Tue, Aug 25 - Tue, Sep 1

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Southwest flights from New Orleans to St. Louis

Our best Southwest deals on New Orleans to St. Louis flight tickets
Southwest
Sep 5
MSY9:55 amNew Orleans Louis Armstrong
6h 45m
1 stop
STL4:40 pmLambert-St Louis
Sep 6
STL3:40 pmLambert-St Louis
1h 45m
MSY5:25 pmNew Orleans Louis Armstrong
$289
Southwest
Sep 5
MSY7:35 amNew Orleans Louis Armstrong
1h 45m
STL9:20 amLambert-St Louis
Sep 6
STL3:40 pmLambert-St Louis
1h 45m
MSY5:25 pmNew Orleans Louis Armstrong
$297
Southwest
Sep 21
MSY7:15 amNew Orleans Louis Armstrong
1h 45m
STL9:00 amLambert-St Louis
Sep 28
STL6:05 amLambert-St Louis
5h 30m
1 stop
MSY11:35 amNew Orleans Louis Armstrong
$299

Frontier flights from New Orleans to St. Louis

Our best Frontier deals on New Orleans to St. Louis flight tickets
Frontier
Sep 10
MSY5:17 pmNew Orleans Louis Armstrong
19h 53m
1 stop
STL1:10 pmLambert-St Louis
Sep 14
STL2:29 pmLambert-St Louis
25h 53m
1 stop
MSY4:22 pmNew Orleans Louis Armstrong
$131
Frontier
Oct 22
MSY5:02 pmNew Orleans Louis Armstrong
16h 38m
1 stop
STL9:40 amLambert-St Louis
Oct 25
STL10:35 amLambert-St Louis
5h 32m
1 stop
MSY4:07 pmNew Orleans Louis Armstrong
$161
Frontier
Nov 6
MSY4:58 pmNew Orleans Louis Armstrong
16h 42m
1 stop
STL9:40 amLambert-St Louis
Nov 9
STL10:35 amLambert-St Louis
5h 28m
1 stop
MSY4:03 pmNew Orleans Louis Armstrong
$163

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 8, 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

Cheapest round-trip

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Thu 9/10

5:17 pm-1:10 pm

1 stop19h 53m

Lambert-St Louis

Mon 9/14

2:29 pm-4:22 pm

1 stop25h 53m

$131

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Thu 10/22

5:02 pm-9:40 am

1 stop16h 38m

Lambert-St Louis

Sun 10/25

10:35 am-4:07 pm

1 stop5h 32m

$161

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Wed 11/11

8:00 am-9:40 am

2 stops25h 40m

Lambert-St Louis

Sun 11/15

10:35 am-4:03 pm

1 stop5h 28m

$228

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Fri 8/28

8:00 am-3:28 pm

1 stop7h 28m

Lambert-St Louis

Sun 8/30

6:17 pm-6:02 pm

1 stop23h 45m

$266

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Sat 9/5

9:55 am-4:40 pm

1 stop6h 45m

Lambert-St Louis

Sun 9/6

3:40 pm-5:25 pm

Nonstop1h 45m

$289
Quickest round-trip

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Sat 9/5

7:35 am-9:20 am

Nonstop1h 45m

Lambert-St Louis

Sun 9/6

3:40 pm-5:25 pm

Nonstop1h 45m

$297

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Tue 9/1

12:29 pm-6:05 pm

1 stop5h 36m

Lambert-St Louis

Sat 9/5

10:16 am-9:46 pm

1 stop11h 30m

$316

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Thu 9/24

12:22 pm-6:03 pm

1 stop5h 41m

Lambert-St Louis

Tue 9/29

8:30 am-2:55 pm

1 stop6h 25m

$329

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Thu 12/10

4:58 pm-9:33 pm

1 stop4h 35m

Lambert-St Louis

Tue 12/15

5:37 pm-11:46 pm

1 stop6h 09m

$329

New OrleansSt. Louis

MSY New Orleans Louis Armstrong - STL Lambert-St Louis

MSYSTL

New Orleans Louis Armstrong

Tue 8/25

12:47 pm-6:27 pm

1 stop5h 40m

Lambert-St Louis

Tue 9/1

7:00 am-11:42 am

1 stop4h 42m

$329

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, February 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 $301. The month of March is another great option to travel to St. Louis, with average flight prices from New Orleans averaging around $350.

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 $312. 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 $587. 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 evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $466 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 to St. Louis flights?

There is only 1 cabin class available to choose from on New Orleans to 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 August 2026, prices for New Orleans to St. Louis flights are approximately 6% 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

$209

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 $209. The best round-trip flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $322.
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 in St. Louis. From New Orleans there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from New Orleans to St. Louis

  • 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
5.6
2,721 reviews
Search Frontier flights
DeltaPriceFrom $143Free CancellationRating
7.8
8,504 reviews
Search Delta flights
American AirlinesPriceFrom $311Free CancellationRating
7.1
11,888 reviews
Search American Airlines flights
SouthwestPriceFrom $317Free CancellationRating
8.0
4,216 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 $317. Generally, Southwest has 6 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
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
Grafton
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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