Southwest® flights from New Orleans to St. Louis from $136

Promo Code

Low fares from New Orleans to St. Louis

$

New Orleans (MSY)to

St. Louis (STL)
Depart: 12/23/2026

One-way

Basic

From
$136
Seen: 17 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 11/24/2026

One-way

Basic

From
$137
Seen: 19 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 12/02/2026

One-way

Basic

From
$137
Seen: 23 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 11/25/2026

One-way

Basic

From
$137
Seen: 19 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 12/21/2026

One-way

Basic

From
$158
Seen: 23 hrs ago

New Orleans (MSY)to

St. Louis (STL)
Depart: 01/25/2027

One-way

Basic

From
$158
Seen: 20 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from New Orleans to St. Louis

Oct 2026
From$396*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$137*
Seen: 19 hrs ago
One Way/Basic
Dec 2026
From$136*
Seen: 17 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $505
Displaying fares for October-2026
  • MSY–STL, 10/21/2026: From $505
    21

    Wed

    OCT

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

    Thu

  • MSY–STL, 10/23/2026: From $505
    23

    Fri

  • MSY–STL, 10/24/2026: From $505
    24

    Sat

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • MSY–STL, 10/26/2026: From $505
    26

    Mon

  • MSY–STL, 10/27/2026: From $396
    27

    Tue

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

  • MSY–STL, 10/29/2026: From $396
    29

    Thu

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

    Fri

  • MSY–STL, 10/31/2026: From $396
    31

    Sat

  • MSY–STL, 11/01/2026: From $396
    01

    Sun

    NOV

  • MSY–STL, 11/02/2026: From $396
    02

    Mon

  • MSY–STL, 11/03/2026: From $289
    03

    Tue

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    04

    Wed

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    05

    Thu

  • MSY–STL, 11/06/2026: From $289
    06

    Fri

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

  • MSY–STL, 11/09/2026: From $396
    09

    Mon

  • MSY–STL, 11/10/2026: From $159
    10

    Tue

  • MSY–STL, 11/11/2026: From $159
    11

    Wed

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

    Thu

  • MSY–STL, 11/13/2026: From $159
    13

    Fri

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

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

    Sun

  • MSY–STL: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • MSY–STL, 11/17/2026: From $159
    17

    Tue

  • MSY–STL, 11/18/2026: From $159
    18

    Wed

  • MSY–STL, 11/19/2026: From $162
    19

    Thu

  • MSY–STL, 11/20/2026: From $206
    20

    Fri

    • Range$159-$505

    *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

    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.

    Explore Flights from Other Popular Origins

    Popular Flights from New Orleans