STL - MSY

$106 Find Cheap Flights from St. Louis to New Orleans

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to New Orleans departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to New Orleans

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to New Orleans, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to New Orleans, as well as popular online travel agencies
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Cheap Flight Deals from St. Louis to New Orleans (STL-MSY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to New Orleans that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to New Orleans

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to New Orleans.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Frontier Logo
6:51 pm - 6:57 pmSTL-MSY
24h 06m1 stop
Frontier Logo
2:08 pm - 11:46 pmMSY-STL
9h 38m1 stop
$248Frontier
Find Deal
Fri, Apr 18 - Sun, Apr 20
Frontier Logo
6:53 pm - 5:25 pmSTL-MSY
22h 32m1 stop
Frontier Logo
9:46 am - 11:49 pmMSY-STL
14h 03m1 stop
$249Frontier
Find Deal
Mon, May 12 - Mon, Jun 2
Southwest Logo
6:40 pm - 8:25 pmSTL-MSY
1h 45mnonstop
Southwest Logo
6:00 pm - 7:50 pmMSY-STL
1h 50mnonstop
$271Southwest
Find Deal
Wed, Apr 30 - Wed, May 7
Southwest Logo
6:40 pm - 8:25 pmSTL-MSY
1h 45mnonstop
Southwest Logo
6:15 am - 12:50 pmMSY-STL
6h 35m1 stop
$281Southwest
Find Deal
Wed, Apr 30 - Wed, May 7
United Airlines Logo
9:50 am - 6:03 pmSTL-MSY
8h 13m2 stops
United Airlines Logo
5:30 pm - 10:15 pmMSY-STL
4h 45m1 stop
$321United Airlines
Find Deal
Thu, May 29 - Tue, Jun 3
United Airlines Logo
8:30 am - 1:49 pmSTL-MSY
5h 19m1 stop
United Airlines Logo
5:00 am - 12:19 pmMSY-STL
7h 19m2 stops
$337United Airlines
Find Deal
Wed, May 14 - Sat, May 17
Delta Logo
8:55 am - 3:22 pmSTL-MSY
6h 27m1 stop
Delta Logo
6:30 am - 12:24 pmMSY-STL
5h 54m1 stop
$349Delta
Find Deal
Sat, Aug 9 - Fri, Aug 15
American Airlines Logo
5:12 am - 9:56 amSTL-MSY
4h 44m1 stop
American Airlines Logo
1:57 pm - 7:29 pmMSY-STL
5h 32m1 stop
$355American Airlines
Find Deal
Thu, May 22 - Sun, May 25
American Airlines Logo
5:30 am - 10:29 amSTL-MSY
4h 59m1 stop
American Airlines Logo
9:28 am - 3:38 pmMSY-STL
6h 10m1 stop
$395American Airlines
Find Deal
Thu, Jul 31 - Mon, Aug 4
Delta Logo
6:00 am - 11:58 amSTL-MSY
5h 58m1 stop
Delta Logo
5:20 pm - 11:39 pmMSY-STL
6h 19m1 stop
$502Delta
Find Deal
Fri, Aug 22 - Tue, Aug 26

Expert advice for your flight from St. Louis to New Orleans 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
STL

Avoid peak hours at STL to minimize wait times. Early mornings and afternoons can be crowded, affecting security and check-in processes.

Read more about STLby Yulia Denisyuk
MSY

For a quick ride to New Orleans, use rideshare services or taxis available at MSY's ground transportation center, just outside Level 1, door 7.

Read more about MSYby Daniel Scheffler
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on MSY

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

KAYAK's insights & trends for St. Louis to New Orleans flights

Get data-powered insights and trends into flights from St. Louis to New Orleans to help you find the cheapest flights, the best time to fly and much more.
Find cheap flights to New Orleans
Find cheap flights to New Orleans

Planning a trip from St. Louis to New Orleans? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from St. Louis to New Orleans?

The average price of all round-trip flights from St. Louis to New Orleans clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to New Orleans on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from St. Louis to New Orleans. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

What is the cheapest month to fly from St. Louis to New Orleans?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to New Orleans, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to New Orleans is August, where tickets cost $284 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $464 and $456 respectively.

Can I save money by flying with a layover from St. Louis to New Orleans?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $197, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to New Orleans, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from St. Louis to New Orleans, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

January

High season

March

Cheapest flight

$106
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from St. Louis to New Orleans

When to book flights from St. Louis to New Orleans

Are your dates flexible? Find out the best times to travel from St. Louis to New Orleans based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to New Orleans

  • Can I rent a car from MSY?

    Yes. There are nine rental car agencies at MSY, all of which are located in the MSY Consolidated Car Rental Center, which is open 24/7. When you landed MSY, exit Level 1 Baggage Claim and proceed toward the long-term parking garage next to the terminal. There, you will find the Rental Car shuttle stop. These free shuttles run approximately every 5 minutes and take about 20 minutes to get from the airport to the Consolidated Car Rental Center.

  • Does MSY have private facilities for nursing moms?

    Yes. There is a Mother's Room on every concourse at MSY located just passed the TSA security checkpoint. These rooms are designed to give nursing mothers a quiet, private place to breastfeed or pump. Each of these rooms includes comfortable seating, an end table, a changing table, and an electrical outlet placed for easy use with an electrical breast pump.

  • Can I find a USO at STL?

    Yes. STL provides two USO lounges for active-duty members of the US military and their families. The USO in Terminal 2 by Baggage Claim is open daily from 7 am to 6 pm. The USO in Terminal 1 at Baggage Claim is open 24 hours. These lounges include a sleeping area with beds, showers, refreshments, TV, comfortable seating, computers, a library, Wi-Fi, and more.

  • Does the St. Louis Airport have an indoor playground for kids?

    Yes. You can find the St. Louis International Playport on Concourse C at Gate 2. This kids’ mock airport includes kid-size vehicles, including a plane, that children can climb on and play with. Children can even make believe that they are driving a Metrolink subway car. There is also a kid-size car rental counter, luggage conveyor belt, and security checkpoint with a mock x-ray machine.

  • What is the cheapest flight from St. Louis to New Orleans?

    In the last 3 days, the lowest price for a flight from St. Louis to New Orleans was $106 for a one-way ticket and $248 for a round-trip.

  • Do I need a passport to fly between St. Louis and New Orleans?

    No, a passport isn't needed to fly from St. Louis to New Orleans. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from St. Louis to New Orleans?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the St. Louis to New Orleans flight route.

  • On which days can I fly direct from St. Louis to New Orleans?

    There are nonstop flights from St. Louis to New Orleans on a daily basis.

  • Which is the best airline for flights from St. Louis to New Orleans, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to New Orleans are Southwest and Delta. With an average price for the route of $434 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $286 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to New Orleans?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to New Orleans.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to New Orleans?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to New Orleans from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to New Orleans?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to New Orleans with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MSY can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to New Orleans?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to New Orleans from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from St. Louis to New Orleans

  • Looking for a cheap flight? 25% of our users found flights on this route for $165 or less one-way and $326 or less round-trip.
  • The St. Louis Lambert International Airport (STL) serves as a hub for the smaller regional airlines Cape Air and Air Choice One. The Louis Armstrong New Orleans International Airport (MSY) serves as a hub for Breeze Airways.
  • Southwest operates non-stop flights from St. Louis to New Orleans. American, Spirit, Delta, and United are among the airlines that offer one-stop flights from STL to MSY. Common layovers include Houston, Atlanta, Dallas, and Charlotte, among other cities. American and United are among the airlines that offer two-stop flights from STL to MSY, with stops often in Dallas and Austin or Chicago and Houston.
  • The St. Louis Airport provides a total of six animal relief areas for passengers who have a service animal or a pet with them at the airport. Two of these relief areas are located outside through Exit 6 in Terminal 1 and through Exit 15 in Terminal 2. Four of the release stations are inside the terminals, at Gates A16, C24, E4, and E40.
  • If you want to park your car long-term at STL before your flight to New Orleans, B Lot and D Lot are the most affordable options. Free shuttles run between these lots and the terminals approximately every 10 minutes. To check the availability in each lot in real-time, you can check the STL homepage.
  • At MSY, it is possible for a non-passenger to accompany a ticketed passenger past security. Whether you are a caregiver who needs to accompany a passenger or someone who simply want to spend time with someone as they wait for their plane, you can apply for an MSY Guest Pass, which allows you through the TSA security checkpoint and into the airside section of the airport.
See more tips

Prefer to fly direct from St. Louis to New Orleans?

Find which airlines fly direct from Lambert-St Louis Airport to New Orleans Louis Armstrong Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to New Orleans Louis Armstrong

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

New Orleans Louis Armstrong to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to New Orleans

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to New Orleans. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to New Orleans? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4277 reviews
8.0Comfort
7.6Entertainment
8.2Boarding
8.7Crew
7.1Food
Airline reviews

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

6.0 GoodCarolynn, Mar 2025KOA - SMF
Read more Southwest reviews

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Very good. Sad to learn Southwest is going start to charge for bags

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

WiFi on the flight was not working. Thus, entertainment options were limited.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

The trip was very smooth and they provided great customer service

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Bag should not be so much money. This is how Frontier takes advantage of customers

The plane was comfortable. The time to board was way too slow and very unorganized! The crew was not as friendly as normally. The was not a single time that they offered water nor anything!!!

They switched my flight to Spirit, Never using Kayak again,

i was denied boarding, even though i had an assigned seat, checked in on line and was at airport early. Then they refused to fully refund the the fair and replacement fair because they claimed it was "no show/denied boarding". I will never fly this airline again

I was not permitted on my flight and had to purchase another flight ticket to Las Vegas.

This was a full flight and I was in Zone 1, however upon boarding, several other zones went in ahead of me, leaving no overhead cabin space near my seat. This created a challenging disembarkment process.

Everything you need to know for your flight from St. Louis to New Orleans

Information on your arrival and departure airports

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