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: 09/29/2026

One-way

Basic

From
$189
Seen: 16 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 09/28/2026

One-way

Basic

From
$189
Seen: 15 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 09/10/2026

One-way

Basic

From
$189
Seen: 22 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 09/21/2026

One-way

Basic

From
$189
Seen: 21 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 10/08/2026

One-way

Basic

From
$189
Seen: 6 hrs ago

Ontario/LA (ONT)to

Indianapolis (IND)
Depart: 10/14/2026

One-way

Basic

From
$189
Seen: 2 hrs ago

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Explore flights from Ontario/LA to Indianapolis

Aug 2026
From$504*
Seen: 14 hrs ago
One Way/Basic
Sep 2026
From$189*
Seen: 19 hrs ago
One Way/Basic
Oct 2026
From$189*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $574
Displaying fares for August-2026
  • ONT–IND, 08/21/2026: From $574
    21

    Fri

    AUG

  • ONT–IND, 08/22/2026: From $574
    22

    Sat

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

    Sun

  • ONT–IND, 08/24/2026: From $574
    24

    Mon

  • ONT–IND, 08/25/2026: From $574
    25

    Tue

  • ONT–IND, 08/26/2026: From $574
    26

    Wed

  • ONT–IND, 08/27/2026: From $504
    27

    Thu

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

    Fri

  • ONT–IND: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

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

    Sun

  • ONT–IND: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

  • ONT–IND: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • ONT–IND, 09/02/2026: From $504
    02

    Wed

  • ONT–IND, 09/03/2026: From $304
    03

    Thu

  • ONT–IND, 09/04/2026: From $304
    04

    Fri

  • ONT–IND, 09/05/2026: From $304
    05

    Sat

  • ONT–IND, 09/06/2026: From $304
    06

    Sun

  • ONT–IND, 09/07/2026: From $403
    07

    Mon

  • ONT–IND, 09/08/2026: From $304
    08

    Tue

  • ONT–IND, 09/09/2026: From $189
    09

    Wed

  • ONT–IND, 09/10/2026: From $189
    10

    Thu

  • ONT–IND, 09/11/2026: From $189
    11

    Fri

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

    Sat

  • ONT–IND: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • ONT–IND, 09/14/2026: From $189
    14

    Mon

  • ONT–IND, 09/15/2026: From $189
    15

    Tue

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

    Wed

  • ONT–IND, 09/17/2026: From $189
    17

    Thu

  • ONT–IND, 09/18/2026: From $207
    18

    Fri

  • ONT–IND: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

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

    Sun

    • Range$189-$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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