Southwest® flights from Ontario/LA to Indianapolis from $189

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Low fares from Ontario/LA to Indianapolis

$

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 12/09/2026

One-way

Basic

From
$189
Seen: 11 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 10/29/2026

One-way

Basic

From
$189
Seen: 20 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 12/17/2026

One-way

Basic

From
$189
Seen: 3 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 11/19/2026

One-way

Basic

From
$189
Seen: 2 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 11/16/2026

One-way

Basic

From
$189
Seen: 6 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 10/06/2026

One-way

Basic

From
$194
Seen: 19 hrs ago

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Explore flights from Ontario/LA to Indianapolis

Sep 2026
From$225*
Seen: 10 hrs ago
One Way/Basic
Oct 2026
From$189*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$189*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $194
cmp-daily-histogram-bars-legend-max-price-aria-label $574
Displaying fares for September-2026
  • ONT–IND, 09/11/2026: From $574
    11

    Fri

    SEP

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    12

    Sat

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    13

    Sun

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    14

    Mon

  • ONT–IND, 09/15/2026: From $574
    15

    Tue

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    16

    Wed

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    17

    Thu

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    18

    Fri

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    19

    Sat

  • ONT–IND, 09/20/2026: From $504
    20

    Sun

  • ONT–IND, 09/21/2026: From $504
    21

    Mon

  • ONT–IND, 09/22/2026: From $504
    22

    Tue

  • ONT–IND, 09/23/2026: From $304
    23

    Wed

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    24

    Thu

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    25

    Fri

  • ONT–IND, 09/26/2026: From $304
    26

    Sat

  • ONT–IND, 09/27/2026: From $304
    27

    Sun

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    28

    Mon

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    29

    Tue

  • ONT–IND, 09/30/2026: From $225
    30

    Wed

  • ONT–IND, 10/01/2026: From $225
    01

    Thu

    OCT

  • ONT–IND, 10/02/2026: From $206
    02

    Fri

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    03

    Sat

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    04

    Sun

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    05

    Mon

  • ONT–IND, 10/06/2026: From $194
    06

    Tue

  • ONT–IND, 10/07/2026: From $206
    07

    Wed

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

    Thu

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    09

    Fri

  • ONT–IND, 10/10/2026: From $206
    10

    Sat

    • Range$194-$574

    *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:
    LA/Ontario International Airport
    Arriving at:
    Indianapolis International Airport
    Distance:
    1768 miles

    Route Information

    143† Weekly flights

    † 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

    There are 143 weekly flights from Ontario/LA to Indianapolis on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA 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 Ontario/LA 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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