Southwest® flights from St. Louis to Jacksonville from $94

Promo Code

Low fares from St. Louis to Jacksonville

$

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/18/2026

One-way

Basic

From
$94
Seen: 3 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 11/18/2026

One-way

Basic

From
$99
Seen: 6 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 11/17/2026

One-way

Basic

From
$99
Seen: 5 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/30/2026

One-way

Basic

From
$99
Seen: 5 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 11/16/2026

One-way

Basic

From
$99
Seen: 7 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 11/10/2026

One-way

Basic

From
$99
Seen: 6 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.

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Explore flights from St. Louis to Jacksonville

Oct 2026
From$284*
Seen: 10 hrs ago
One Way/Basic
Nov 2026
From$99*
Seen: 7 hrs ago
One Way/Basic
Dec 2026
From$94*
Seen: 3 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $99
cmp-daily-histogram-bars-legend-max-price-aria-label $389
Displaying fares for October-2026
  • STL–JAX, 10/22/2026: From $389
    22

    Thu

    OCT

  • STL–JAX, 10/23/2026: From $379
    23

    Fri

  • STL–JAX: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • STL–JAX, 10/25/2026: From $379
    25

    Sun

  • STL–JAX, 10/26/2026: From $379
    26

    Mon

  • STL–JAX, 10/27/2026: From $379
    27

    Tue

  • STL–JAX, 10/28/2026: From $284
    28

    Wed

  • STL–JAX, 10/29/2026: From $284
    29

    Thu

  • STL–JAX, 10/30/2026: From $284
    30

    Fri

  • STL–JAX, 10/31/2026: From $284
    31

    Sat

  • STL–JAX: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

  • STL–JAX: cmp-view-offers-disclaimer. Find Offers
    02

    Mon

  • STL–JAX, 11/03/2026: From $284
    03

    Tue

  • STL–JAX, 11/04/2026: From $184
    04

    Wed

  • STL–JAX, 11/05/2026: From $235
    05

    Thu

  • STL–JAX, 11/06/2026: From $184
    06

    Fri

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

    Sat

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

    Sun

  • STL–JAX, 11/09/2026: From $126
    09

    Mon

  • STL–JAX, 11/10/2026: From $99
    10

    Tue

  • STL–JAX, 11/11/2026: From $109
    11

    Wed

  • STL–JAX, 11/12/2026: From $131
    12

    Thu

  • STL–JAX, 11/13/2026: From $109
    13

    Fri

  • STL–JAX, 11/14/2026: From $109
    14

    Sat

  • STL–JAX, 11/15/2026: From $114
    15

    Sun

  • STL–JAX, 11/16/2026: From $99
    16

    Mon

  • STL–JAX, 11/17/2026: From $99
    17

    Tue

  • STL–JAX, 11/18/2026: From $99
    18

    Wed

  • STL–JAX, 11/19/2026: From $214
    19

    Thu

  • STL–JAX, 11/20/2026: From $131
    20

    Fri

  • STL–JAX, 11/21/2026: From $114
    21

    Sat

    • Range$99-$389

    *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:
    Jacksonville International Airport
    Average flight time:
    1 hour 55 minutes
    Distance:
    753 miles

    Questions we hear the most

    The average flight time from St. Louis to Jacksonville is 1 hour 55 minutes.
    There are 140 weekly flights from St. Louis to Jacksonville on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Jacksonville 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Jacksonville once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Jacksonville with Southwest, check out our Low Fare Calendar.
    You can rent a car at Jacksonville International Airport book yours with your flight.
    Yes! Flights from St. Louis to Jacksonville—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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