STL - MSY

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Everything you should know

Cheapest round-trip
$132
Typical prices: $354-$489
Frontier
Sun 9/16Sat 9/22
STL - MSY • 1 stop
Cheapest non-stop
$317
Typical prices: $378-$512
Southwest
Fri 11/9Mon 11/12
STL - MSY • Non-stop
Nonstop flights
You can fly direct with Southwest. Average duration is 1h 45m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 54% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $163 (round-trip)
Shortest trip • 4h 22m (one-way)
Insights
Insights
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We hope you love your trip to New Orleans!
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Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, Sep 16 - Tue, Sep 22
Frontier Logo
2:29 pm - 4:22 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
25h 53m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:17 pm - 1:10 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
19h 53m1 stop Atlanta Hartsfield-Jackson
$132Frontier
Fri, Sep 18 - Tue, Sep 22
Frontier Logo
2:29 pm - 4:22 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
25h 53m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:17 pm - 1:10 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
19h 53m1 stop Atlanta Hartsfield-Jackson
$142Frontier
Fri, Nov 13 - Mon, Nov 16
Multiple Airlines Logo
6:44 pm - 4:13 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
21h 29m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:35 pm - 11:16 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
8h 41m1 stop Orlando
$250Multiple Airlines
Sat, Oct 17 - Wed, Oct 21
American Airlines Logo
5:23 pm - 12:24 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
7h 01m1 stop Chicago O'Hare Intl
American Airlines Logo
6:28 pm - 11:42 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 14m1 stop Dallas/Fort Worth
$259American Airlines
Thu, Nov 26 - Thu, Nov 26
Delta Logo
8:00 am - 12:02 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
4h 02m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:18 pm - 10:53 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 35m1 stop Atlanta Hartsfield-Jackson
$259Delta
Mon, Nov 23 - Wed, Nov 25
Delta Logo
6:00 am - 9:56 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
3h 56m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:18 pm - 9:42 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
4h 24m1 stop Atlanta Hartsfield-Jackson
$259Delta
Fri, Nov 6 - Mon, Nov 9
Multiple Airlines Logo
6:44 pm - 4:13 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
21h 29m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:35 pm - 11:16 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
8h 41m1 stop Orlando
$294Multiple Airlines
Mon, Nov 9 - Thu, Nov 12
Southwest Logo
9:45 pm - 11:30 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 45mnonstop
Southwest Logo
7:10 pm - 8:55 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
1h 45mnonstop
$317Southwest
Sat, Jan 16 - Sat, Jan 23
Southwest Logo
2:05 pm - 3:55 pmSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
1h 50mnonstop
Southwest Logo
7:40 am - 9:25 amMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
1h 45mnonstop
$317Southwest
Sat, Oct 17 - Wed, Oct 21
American Airlines Logo
5:23 pm - 12:24 amSTL  Lambert-St Louis-MSY New Orleans Louis Armstrong
7h 01m1 stop Chicago O'Hare Intl
American Airlines Logo
6:28 pm - 11:42 pmMSY  New Orleans Louis Armstrong-STL Lambert-St Louis
5h 14m1 stop Dallas/Fort Worth
$327American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to New Orleans flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to New Orleans with more confidence.

How much is a round-trip flight from St. Louis to New Orleans?

Round-trip flights from St. Louis to New Orleans start at $132. Prices are below average for this route right now, with typical round-trip fares ranging from $354 to $489. The lowest price found in the past 5 days was $132 on Frontier.

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

Tuesday is the cheapest day of the week to fly from St. Louis to New Orleans, it is 14% cheaper than the average day. Wednesday is the most expensive day with flight prices 3% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • August is the cheapest month to fly from St. Louis to New Orleans at $345 round-trip.
  • February ($472) and July ($457) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 36% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from St. Louis to New Orleans the cheapest?

Flights from St. Louis to New Orleans are cheapest 26 weeks before departure. Booking in this window typically costs about 54% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

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

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on MSY

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

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.

Key details for St. Louis to New Orleans flights

Low season

July

Cheapest flight

$65
Best time to beat the crowds but there is an average 8% 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

Your St. Louis to New Orleans flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • Which airlines offer extra legroom and free seat selection on St. Louis to New Orleans flights?

    Among airlines operating St. Louis to New Orleans flights:

    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from St. Louis to New Orleans?

    Only Southwest operates flights between St. Louis and New Orleans.

  • Which airports can I use when flying from St. Louis to New Orleans?

    Flights from St. Louis to New Orleans usually depart from Lambert-St Louis (STL) and arrive at New Orleans Louis Armstrong (MSY).

  • Which airlines include bags at no extra cost on St. Louis to New Orleans flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from St. Louis to New Orleans?

    Only Economy Class is available on flights from St. Louis to New Orleans.

  • How much can I save by taking a layover when flying from St. Louis to New Orleans?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $163 round-trip via Denver Intl (DEN), compared to $451 for nonstop.

  • What is the standard checked-bag allowance on flights from St. Louis to New Orleans?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from St. Louis to New Orleans?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • Which airports do connecting flights from St. Louis to New Orleans pass through?

    One-stop flights from St. Louis to New Orleans most commonly connect through:

    • Houston George Bush Intcntl (IAH) - 49% of one-stop connections
    • Dallas/Fort Worth (DFW) - 16% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 10% of one-stop connections
    • Charlotte Douglas (CLT) - 6% of one-stop connections

    Houston George Bush Intcntl (IAH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from St. Louis to New Orleans?

    Yes. Being flexible with your travel dates can save you up to 17% on the St. Louis to New Orleans route. Tuesday is the cheapest departure day at $366 round-trip on average, while Wednesday is the most expensive at $438, a difference of $72. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from St. Louis to New Orleans spread across the day?

    Morning is the busiest departure period on St. Louis to New Orleans flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • What popular places can I visit in New Orleans?

    Some of the most popular sights in New Orleans are Bourbon Street, New Orleans Morial Convention Center and Caesars Superdome. These are among the most viewed places in New Orleans on KAYAK.

  • What are the earliest and latest flights from St. Louis to New Orleans?

    These are the earliest and latest flight times available from St. Louis to New Orleans:

    • Earliest: departs at 7:50 am and lands at 9:35 am
    • Latest: departs at 10:45 pm and lands at 12:30 am.

    The flight takes about 1h 45m.

  • How expensive are last-minute St. Louis to New Orleans flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 65% above the route average of $423. Book 26 weeks before departure for the lowest fares.

  • How long is a flight from St. Louis to New Orleans?

    A nonstop flight from St. Louis to New Orleans takes 1h 45m, covering 605 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from St. Louis to New Orleans changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $132 to $1,320. That means the highest observed fare was about 10x higher than the lowest one.

  • How are flight prices from St. Louis to New Orleans looking right now?

    One-way fares from St. Louis to New Orleans are currently lower than usual. Average one-way flight prices are about $130, which is 46% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from St. Louis to New Orleans?

    Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 4h 22m, compared with 4h 27m via Houston Hobby (HOU) and 4h 35m via Atlanta Hartsfield-Jackson (ATL).

  • What car rental options are available at New Orleans Louis Armstrong Airport (MSY)?

    New Orleans Louis Armstrong Airport (MSY) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:
    · Dollar
    · Priceless
    · Hertz
    · Thrifty
    · Budget

  • How much should I expect to pay for a St. Louis to New Orleans flight?

    Round-trip flights from St. Louis to New Orleans range from $354 to $489, with an average of $423 over the past 12 months. Anything below $354 counts as a good deal.

Your guide to booking St. Louis to New Orleans flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Wednesday. On this route, Tuesday flights average $366 - about $72 less than Wednesday (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 54% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to New Orleans trip for August. Fares historically average $345 round-trip in that month - typically $127 less than the most expensive month, which is February (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Denver Intl Airport (DEN) can be cheaper than flying direct. The cheapest layover option averages $163 round-trip on this route - about $288 less than direct flights (based on the last 12 months).
  • 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.

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

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

Other airlines flying from St. Louis to New Orleans