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Cheap flights from New Orleans to St. Louis from $68

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 10/16. 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

United Airlines Logo
7:00 am - 2:27 pmMSY-STL
7h 27m1 stop
United Airlines Logo
6:15 am - 10:48 amSTL-MSY
4h 33m1 stop
$135United Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
United Airlines Logo
5:15 am - 12:28 pmMSY-STL
7h 13m2 stops
United Airlines Logo
6:15 am - 10:48 amSTL-MSY
4h 33m1 stop
$140United Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
American Airlines Logo
4:23 pm - 11:58 pmMSY-STL
7h 35m1 stop
American Airlines Logo
2:06 pm - 9:12 pmSTL-MSY
7h 06m1 stop
$159American Airlines
Find Deal
Thu, Oct 23 - Sat, Oct 25
Delta Logo
6:20 am - 12:35 pmMSY-STL
6h 15m1 stop
Delta Logo
1:30 pm - 8:17 pmSTL-MSY
6h 47m1 stop
$207Delta
Find Deal
Sat, Oct 18 - Tue, Oct 21
Logo
9:28 pm - 9:06 amMSY-STL
35h 38m2 stops
Logo
4:00 pm - 10:52 amSTL-MSY
18h 52m1 stop
$215
Find Deal
Tue, Sep 30 - Sun, Oct 5
Logo
11:13 am - 9:22 amMSY-STL
22h 09m1 stop
Logo
7:52 pm - 2:58 pmSTL-MSY
19h 06m2 stops
$217
Find Deal
Sat, Oct 11 - Tue, Oct 14
Delta Logo
7:29 am - 2:35 pmMSY-STL
7h 06m1 stop
Delta Logo
6:01 am - 11:40 amSTL-MSY
5h 39m1 stop
$264Delta
Find Deal
Tue, Sep 30 - Sun, Oct 5
Southwest Logo
11:15 am - 1:00 pmMSY-STL
1h 45mnonstop
Southwest Logo
6:05 pm - 7:50 pmSTL-MSY
1h 45mnonstop
$305Southwest
Find Deal
Sat, Oct 11 - Tue, Oct 14
Southwest Logo
11:15 am - 1:00 pmMSY-STL
1h 45mnonstop
Southwest Logo
8:15 am - 12:00 pmSTL-MSY
3h 45m1 stop
$311Southwest
Find Deal
Sat, Oct 11 - Tue, Oct 14
American Airlines Logo
9:36 am - 3:08 pmMSY-STL
5h 32m1 stop
American Airlines Logo
5:18 am - 10:04 amSTL-MSY
4h 46m1 stop
$416American Airlines
Find Deal
Thu, Sep 18 - Sat, Sep 20

United Airlines flights from New Orleans to St. Louis

Our best United Airlines deals on New Orleans to St. Louis flight tickets
United Airlines
Oct 18
MSY7:00 amNew Orleans Louis Armstrong
7h 27m
1 stop
STL2:27 pmLambert-St Louis
Oct 21
STL6:15 amLambert-St Louis
4h 33m
1 stop
MSY10:48 amNew Orleans Louis Armstrong
$135
Find similar
United Airlines
Oct 18
MSY5:15 amNew Orleans Louis Armstrong
7h 13m
2 stops
STL12:28 pmLambert-St Louis
Oct 21
STL6:15 amLambert-St Louis
4h 33m
1 stop
MSY10:48 amNew Orleans Louis Armstrong
$140
Find similar
United Airlines
Oct 10
MSY3:25 pmNew Orleans Louis Armstrong
6h 35m
1 stop
STL10:00 pmLambert-St Louis
Oct 12
STL5:00 amLambert-St Louis
4h 38m
1 stop
MSY9:38 amNew Orleans Louis Armstrong
$205
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
Oct 23
MSY4:23 pmNew Orleans Louis Armstrong
7h 35m
1 stop
STL11:58 pmLambert-St Louis
Oct 25
STL2:06 pmLambert-St Louis
7h 06m
1 stop
MSY9:12 pmNew Orleans Louis Armstrong
$159
Find similar
American Airlines
Sep 18
MSY9:36 amNew Orleans Louis Armstrong
5h 32m
1 stop
STL3:08 pmLambert-St Louis
Sep 20
STL5:18 amLambert-St Louis
4h 46m
1 stop
MSY10:04 amNew Orleans Louis Armstrong
$416
Find similar
American Airlines
Sep 19
MSY3:43 pmNew Orleans Louis Armstrong
7h 24m
1 stop
STL11:07 pmLambert-St Louis
Sep 21
STL7:16 amLambert-St Louis
4h 31m
1 stop
MSY11:47 amNew Orleans Louis Armstrong
$441
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 September 15, 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

Sat 10/18

7:00 am-2:27 pm

1 stop7h 27m

Lambert-St Louis

Tue 10/21

6:15 am-10:48 am

1 stop4h 33m

$135

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/18

5:15 am-12:28 pm

2 stops7h 13m

Lambert-St Louis

Tue 10/21

6:15 am-10:48 am

1 stop4h 33m

$140

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 10/23

4:23 pm-11:58 pm

1 stop7h 35m

Lambert-St Louis

Sat 10/25

2:06 pm-9:12 pm

1 stop7h 06m

$159

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/18

6:20 am-12:35 pm

1 stop6h 15m

Lambert-St Louis

Tue 10/21

1:30 pm-8:17 pm

1 stop6h 47m

$207

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 9/30

9:28 pm-9:06 am

2 stops35h 38m

Lambert-St Louis

Sun 10/5

4:00 pm-10:52 am

1 stop18h 52m

$215

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/11

11:13 am-9:22 am

1 stop22h 09m

Lambert-St Louis

Tue 10/14

7:52 pm-2:58 pm

2 stops19h 06m

$217

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 9/30

7:29 am-2:35 pm

1 stop7h 06m

Lambert-St Louis

Sun 10/5

6:01 am-11:40 am

1 stop5h 39m

$264

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/11

11:15 am-1:00 pm

Nonstop1h 45m

Lambert-St Louis

Tue 10/14

6:05 pm-7:50 pm

Nonstop1h 45m

$305

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/11

11:15 am-1:00 pm

Nonstop1h 45m

Lambert-St Louis

Tue 10/14

8:15 am-12:00 pm

1 stop3h 45m

$311

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 9/18

9:36 am-3:08 pm

1 stop5h 32m

Lambert-St Louis

Sat 9/20

5:18 am-10:04 am

1 stop4h 46m

$416

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, May 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 $342. The month of November is another great option to travel to St. Louis, with average flight prices from New Orleans averaging around $352.

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 $376. 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 $402 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

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 September 2025, prices for New Orleans to St. Louis flights are approximately 85% 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

$316

Fastest flight time

1h 45m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in St. Louis

1 airport
The best flight deal from New Orleans to St. Louis found on momondo in the last 72 hours is $316
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, Friday, Saturday and Sunday. 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
DeltaPriceFrom $198Free CancellationRating
7.9
7,954 reviews
Search Delta flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,929 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 9 flights on this route every week with an average price of $406. 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
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

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