Southwest® flights from St. Louis to New Orleans from $173

Promo Code

Low fares from St. Louis to New Orleans

$

St. Louis (STL)to

New Orleans (MSY)
Depart: 11/17/2026

One-way

Basic

From
$173
Seen: 22 hrs ago

St. Louis (STL)to

New Orleans (MSY)
Depart: 12/10/2026

One-way

Basic

From
$173
Seen: 3 hrs ago

St. Louis (STL)to

New Orleans (MSY)
Depart: 12/15/2026

One-way

Basic

From
$173
Seen: 3 hrs ago

St. Louis (STL)to

New Orleans (MSY)
Depart: 12/14/2026

One-way

Basic

From
$173
Seen: 2 hrs ago

St. Louis (STL)to

New Orleans (MSY)
Depart: 11/11/2026

One-way

Basic

From
$174
Seen: 13 hrs ago

St. Louis (STL)to

New Orleans (MSY)
Depart: 11/13/2026

One-way

Basic

From
$174
Seen: 20 hrs ago

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Explore flights from St. Louis to New Orleans

Oct 2026
From$174*
Seen: 12 hrs ago
One Way/Basic
Nov 2026
From$173*
Seen: 22 hrs ago
One Way/Basic
Dec 2026
From$173*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $174
cmp-daily-histogram-bars-legend-max-price-aria-label $495
Displaying fares for October-2026
  • STL–MSY: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • STL–MSY, 10/02/2026: From $495
    02

    Fri

  • STL–MSY, 10/03/2026: From $495
    03

    Sat

  • STL–MSY, 10/04/2026: From $495
    04

    Sun

  • STL–MSY, 10/05/2026: From $495
    05

    Mon

  • STL–MSY, 10/06/2026: From $490
    06

    Tue

  • STL–MSY, 10/07/2026: From $381
    07

    Wed

  • STL–MSY, 10/08/2026: From $434
    08

    Thu

  • STL–MSY, 10/09/2026: From $386
    09

    Fri

  • STL–MSY, 10/10/2026: From $386
    10

    Sat

  • STL–MSY: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • STL–MSY: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • STL–MSY, 10/13/2026: From $381
    13

    Tue

  • STL–MSY, 10/14/2026: From $274
    14

    Wed

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

    Thu

  • STL–MSY, 10/16/2026: From $279
    16

    Fri

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

    Sat

  • STL–MSY: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

  • STL–MSY, 10/19/2026: From $279
    19

    Mon

  • STL–MSY, 10/20/2026: From $274
    20

    Tue

  • STL–MSY, 10/21/2026: From $274
    21

    Wed

  • STL–MSY, 10/22/2026: From $273
    22

    Thu

  • STL–MSY, 10/23/2026: From $174
    23

    Fri

  • STL–MSY, 10/24/2026: From $184
    24

    Sat

  • STL–MSY, 10/25/2026: From $194
    25

    Sun

  • STL–MSY, 10/26/2026: From $174
    26

    Mon

  • STL–MSY, 10/27/2026: From $174
    27

    Tue

  • STL–MSY, 10/28/2026: From $174
    28

    Wed

  • STL–MSY, 10/29/2026: From $244
    29

    Thu

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

    Fri

  • STL–MSY, 10/31/2026: From $174
    31

    Sat

    • Range$174-$495

    *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:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Louis Armstrong International Airport
    Average flight time:
    1 hour 43 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 St. Louis to New Orleans is 1 hour 43 minutes.
    There are 156 weekly flights from St. Louis to New Orleans on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to New Orleans 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to New Orleans once per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to New Orleans with Southwest, check out our Low Fare Calendar.
    You can rent a car at Louis Armstrong International Airport book yours with your flight.
    Yes! Flights from St. Louis to New Orleans—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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