Southwest® flights from St. Louis to Indianapolis from $120

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Low fares from St. Louis to Indianapolis

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St. Louis (STL)to

Indianapolis (IND)
Depart: 11/25/2026

One-way

Basic

From
$120
Seen: 13 hrs ago

St. Louis (STL)to

Indianapolis (IND)
Depart: 11/17/2026

One-way

Basic

From
$120
Seen: 20 hrs ago

St. Louis (STL)to

Indianapolis (IND)
Depart: 12/19/2026

One-way

Basic

From
$120
Seen: 20 hrs ago

St. Louis (STL)to

Indianapolis (IND)
Depart: 11/11/2026

One-way

Basic

From
$120
Seen: 19 hrs ago

St. Louis (STL)to

Indianapolis (IND)
Depart: 11/10/2026

One-way

Basic

From
$120
Seen: 16 hrs ago

St. Louis (STL)to

Indianapolis (IND)
Depart: 12/10/2026

One-way

Basic

From
$120
Seen: 11 hrs ago

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Explore flights from St. Louis to Indianapolis

Oct 2026
From$315*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$120*
Seen: 20 hrs ago
One Way/Basic
Dec 2026
From$120*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $120
cmp-daily-histogram-bars-legend-max-price-aria-label $361
Displaying fares for October-2026
  • STL–IND, 10/22/2026: From $361
    22

    Thu

    OCT

  • STL–IND: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • STL–IND, 10/24/2026: From $315
    24

    Sat

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

    Sun

  • STL–IND, 10/26/2026: From $361
    26

    Mon

  • STL–IND, 10/27/2026: From $315
    27

    Tue

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

    Wed

  • STL–IND, 10/29/2026: From $359
    29

    Thu

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

    Fri

  • STL–IND, 10/31/2026: From $315
    31

    Sat

  • STL–IND, 11/01/2026: From $359
    01

    Sun

    NOV

  • STL–IND, 11/02/2026: From $359
    02

    Mon

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

    Tue

  • STL–IND, 11/04/2026: From $244
    04

    Wed

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    05

    Thu

  • STL–IND, 11/06/2026: From $244
    06

    Fri

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

    Sat

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

    Sun

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    09

    Mon

  • STL–IND, 11/10/2026: From $120
    10

    Tue

  • STL–IND, 11/11/2026: From $120
    11

    Wed

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

    Thu

  • STL–IND, 11/13/2026: From $129
    13

    Fri

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

    Sat

  • STL–IND, 11/15/2026: From $129
    15

    Sun

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

    Mon

  • STL–IND, 11/17/2026: From $120
    17

    Tue

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

    Wed

  • STL–IND, 11/19/2026: From $120
    19

    Thu

  • STL–IND: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

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

    Sat

    • Range$120-$361

    *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:
    Indianapolis International Airport
    Distance:
    229 miles

    Questions we hear the most

    There are 151 weekly flights from St. Louis to Indianapolis on Southwest Airlines.
    To find the lowest fares by day and time to fly St. Louis to Indianapolis with Southwest, check out our Low Fare Calendar.
    You can rent a car at Indianapolis International Airport book yours with your flight.
    Yes! Flights from St. Louis to Indianapolis—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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