MSY - STL

$55 Find Cheap Flights from New Orleans to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from New Orleans to St. Louis departing on 12/4. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from New Orleans to St. Louis, 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 New Orleans to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$119
Overall average: $347
Frontier
Thu 11/13Mon 11/17
MSY - STL • 1 stop
Cheapest non-stop
$313
Typical prices: $380-$638
Southwest
Wed 12/10Wed 12/17
MSY - STL • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
For a quick departure, pre-book parking at MSY.
Use MetroLink from STL to avoid traffic downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $119 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
December
Cheapest • 22% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from New Orleans to St. Louis (MSY-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from New Orleans to St. Louis 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Thu, Nov 13 - Mon, Nov 17
Frontier Logo
7:45 pm - 9:07 amMSY-STL
13h 22m1 stop
Frontier Logo
10:25 am - 4:57 pmSTL-MSY
6h 32m1 stop
$119Frontier
Find Deal
Wed, Dec 24 - Mon, Jan 5
Multiple Airlines Logo
5:00 pm - 9:40 amMSY-STL
16h 40m1 stop
Multiple Airlines Logo
4:27 pm - 11:59 pmSTL-MSY
31h 32m2 stops
$161Multiple Airlines
Find Deal
Wed, Dec 24 - Thu, Jan 1
Multiple Airlines Logo
5:00 pm - 9:40 amMSY-STL
16h 40m1 stop
Multiple Airlines Logo
10:42 am - 4:27 pmSTL-MSY
5h 45m1 stop
$163Multiple Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 23
Multiple Airlines Logo
4:58 pm - 9:47 amMSY-STL
16h 49m1 stop
Multiple Airlines Logo
10:48 am - 3:55 pmSTL-MSY
5h 07m1 stop
$165Multiple Airlines
Find Deal
Wed, Dec 24 - Sun, Jan 4
Multiple Airlines Logo
5:00 pm - 9:40 amMSY-STL
16h 40m1 stop
Multiple Airlines Logo
10:57 am - 4:27 pmSTL-MSY
5h 30m1 stop
$169Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Jan 5
Multiple Airlines Logo
5:00 pm - 9:40 amMSY-STL
16h 40m1 stop
Multiple Airlines Logo
4:27 pm - 11:59 pmSTL-MSY
31h 32m2 stops
$170Multiple Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 13
Frontier Logo
7:45 pm - 9:07 amMSY-STL
13h 22m1 stop
Frontier Logo
2:12 pm - 4:57 pmSTL-MSY
26h 45m1 stop
$178Frontier
Find Deal
Thu, Feb 19 - Sun, Feb 22
Spirit Airlines Logo
5:10 am - 11:01 amMSY-STL
5h 51m1 stop
Spirit Airlines Logo
12:20 pm - 11:05 pmSTL-MSY
10h 45m1 stop
$203Spirit Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
Spirit Airlines Logo
8:29 am - 5:57 pmMSY-STL
33h 28m3 stops
Spirit Airlines Logo
6:21 pm - 8:35 amSTL-MSY
14h 14m1 stop
$229Spirit Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
Delta Logo
5:15 am - 10:45 amMSY-STL
5h 30m1 stop
Delta Logo
11:40 am - 6:04 pmSTL-MSY
6h 24m1 stop
$239Delta
Find Deal
Booking Insights

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

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

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

The average price of all round-trip flights from New Orleans to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from New Orleans to St. Louis, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from St. Louis, Monday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from New Orleans to St. Louis, 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 New Orleans to St. Louis is December, where tickets cost $288 (return) on average. On the other hand, the most expensive months are September and January, where the average cost of round-trip tickets is $482 and $398 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $377 on average.

Expert advice

Expert advice for your flight from New Orleans to St. Louis

 
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
MSY

For a quick departure, MSY offers pre-booked parking options online, ensuring a dedicated spot and easy payment in advance.

Read more about MSYby Daniel Scheffler
STL

Use MetroLink from STL for a convenient ride to downtown St. Louis, avoiding rush hour traffic with ease.

Read more about STLby Yulia Denisyuk
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

Good to know

Low seasonJuly
Cheapest flight$55
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from New Orleans to St. Louis

When to book flights from New Orleans to St. Louis

Are your dates flexible? Find out the best times to travel from New Orleans to St. Louis 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 New Orleans to St. Louis

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

    In the last 3 days, the lowest price for a flight from New Orleans to St. Louis was $55 for a one-way ticket and $119 for a round-trip.

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

    No

  • Which airlines offer Wi-Fi service onboard planes from New Orleans to St. Louis?

    Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the New Orleans to St. Louis flight route.

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

    The Boeing 737-700 Passenger/BBJ1 (winglets) is the aircraft model that flies most regularly on the New Orleans to St. Louis flight route.

  • Which airline alliances offer flights from New Orleans to St. Louis?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between New Orleans and St. Louis, with Star Alliance being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from New Orleans to St. Louis are Southwest and Delta. With an average price for the route of $394 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 $248 and an overall rating of 7.9.

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

    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 New Orleans to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from New Orleans 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 New Orleans to St. Louis?

    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 St. Louis with an airline and back to New Orleans with another airline. Booking your flights between New Orleans and STL 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 New Orleans to St. Louis?

    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 St. Louis from New Orleans up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $124 or less one-way and $253 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from New Orleans Louis Armstrong to Lambert-St Louis.
Find which airlines fly direct from New Orleans Louis Armstrong Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from New Orleans to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from New Orleans to St. Louis. 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 New Orleans to St. Louis? 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 4241 reviews
8.1Boarding
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

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

Information on your arrival and departure airports

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