Southwest® flights from New Orleans to St. Louis from $141

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Low fares from New Orleans to St. Louis

$

New Orleans (MSY)to

St. Louis (STL)
Depart: 08/25/2026

One-way

Basic

From
$141
Seen: 21 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 08/27/2026

One-way

Basic

From
$141
Seen: 22 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 08/20/2026

One-way

Basic

From
$141
Seen: 17 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 08/24/2026

One-way

Basic

From
$141
Seen: 13 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 10/27/2026

One-way

Basic

From
$141
Seen: 15 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 10/26/2026

One-way

Basic

From
$141
Seen: 6 hrs ago

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Explore flights from New Orleans to St. Louis

Jul 2026
From$485*
Seen: 14 hrs ago
One Way/Basic
Aug 2026
From$141*
Seen: 21 hrs ago
One Way/Basic
Sep 2026
From$141*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $141
cmp-daily-histogram-bars-legend-max-price-aria-label $485
Displaying fares for July-2026
  • MSY–STL, 07/31/2026: From $485
    31

    Fri

    JUL

  • MSY–STL, 08/01/2026: From $485
    01

    Sat

  • MSY–STL, 08/02/2026: From $480
    02

    Sun

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    03

    Mon

  • MSY–STL, 08/04/2026: From $485
    04

    Tue

  • MSY–STL, 08/05/2026: From $485
    05

    Wed

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    06

    Thu

  • MSY–STL, 08/07/2026: From $376
    07

    Fri

  • MSY–STL, 08/08/2026: From $376
    08

    Sat

  • MSY–STL, 08/09/2026: From $371
    09

    Sun

  • MSY–STL, 08/10/2026: From $376
    10

    Mon

  • MSY–STL, 08/11/2026: From $376
    11

    Tue

  • MSY–STL, 08/12/2026: From $376
    12

    Wed

  • MSY–STL, 08/13/2026: From $376
    13

    Thu

  • MSY–STL, 08/14/2026: From $269
    14

    Fri

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    15

    Sat

  • MSY–STL, 08/16/2026: From $264
    16

    Sun

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • MSY–STL, 08/18/2026: From $269
    18

    Tue

  • MSY–STL, 08/19/2026: From $269
    19

    Wed

  • MSY–STL, 08/20/2026: From $141
    20

    Thu

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    22

    Sat

  • MSY–STL, 08/23/2026: From $205
    23

    Sun

  • MSY–STL, 08/24/2026: From $141
    24

    Mon

  • MSY–STL, 08/25/2026: From $141
    25

    Tue

  • MSY–STL, 08/26/2026: From $141
    26

    Wed

  • MSY–STL, 08/27/2026: From $141
    27

    Thu

  • MSY–STL, 08/28/2026: From $159
    28

    Fri

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

    • Range$141-$485

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Louis Armstrong International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    1 hour 46 minutes
    Distance:
    604 miles

    Route Information

    156† Weekly flights
    • 2‡ Nonstop flights per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 3‡ Nonstop flights on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from New Orleans to St. Louis is 1 hour 46 minutes.
    There are 156 weekly flights from New Orleans to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from New Orleans to St. Louis 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from New Orleans to St. Louis once per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly New Orleans to St. Louis with Southwest, check out our Low Fare Calendar.
    You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
    Yes! Flights from New Orleans to St. Louis—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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