Southwest® flights from St. Louis to Jacksonville from $158

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Low fares from St. Louis to Jacksonville

$

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/23/2026

One-way

Basic

From
$158
Seen: 18 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/05/2026

One-way

Basic

From
$158
Seen: 14 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/09/2026

One-way

Basic

From
$158
Seen: 13 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/30/2026

One-way

Basic

From
$158
Seen: 15 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 01/05/2027

One-way

Basic

From
$158
Seen: 18 hrs ago

St. Louis (STL)to

Jacksonville (JAX)
Depart: 12/02/2026

One-way

Basic

From
$158
Seen: 15 hrs ago

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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

Nov 2026
From$234*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$158*
Seen: 18 hrs ago
One Way/Basic
Jan 2027
From$158*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $158
cmp-daily-histogram-bars-legend-max-price-aria-label $485
Displaying fares for November-2026
  • STL–JAX, 11/11/2026: From $485
    11

    Wed

    NOV

  • STL–JAX, 11/12/2026: From $485
    12

    Thu

  • STL–JAX, 11/13/2026: From $485
    13

    Fri

  • STL–JAX, 11/14/2026: From $485
    14

    Sat

  • STL–JAX, 11/15/2026: From $485
    15

    Sun

  • STL–JAX, 11/16/2026: From $485
    16

    Mon

  • STL–JAX, 11/17/2026: From $485
    17

    Tue

  • STL–JAX, 11/18/2026: From $364
    18

    Wed

  • STL–JAX, 11/19/2026: From $364
    19

    Thu

  • STL–JAX, 11/20/2026: From $364
    20

    Fri

  • STL–JAX, 11/21/2026: From $364
    21

    Sat

  • STL–JAX, 11/22/2026: From $364
    22

    Sun

  • STL–JAX, 11/23/2026: From $364
    23

    Mon

  • STL–JAX, 11/24/2026: From $255
    24

    Tue

  • STL–JAX, 11/25/2026: From $234
    25

    Wed

  • STL–JAX, 11/26/2026: From $239
    26

    Thu

  • STL–JAX, 11/27/2026: From $239
    27

    Fri

  • STL–JAX, 11/28/2026: From $290
    28

    Sat

  • STL–JAX, 11/29/2026: From $315
    29

    Sun

  • STL–JAX, 11/30/2026: From $264
    30

    Mon

  • STL–JAX, 12/01/2026: From $168
    01

    Tue

    DEC

  • STL–JAX, 12/02/2026: From $158
    02

    Wed

  • STL–JAX, 12/03/2026: From $178
    03

    Thu

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

    Fri

  • STL–JAX, 12/05/2026: From $158
    05

    Sat

  • STL–JAX, 12/06/2026: From $219
    06

    Sun

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

    Mon

  • STL–JAX, 12/08/2026: From $168
    08

    Tue

  • STL–JAX, 12/09/2026: From $158
    09

    Wed

  • STL–JAX, 12/10/2026: From $178
    10

    Thu

    • Range$158-$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:
    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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