Southwest® flights from Ontario/LA to Miami from $207

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Low fares from Ontario/LA to Miami

$

Ontario/LA (ONT)to

Miami (MIA)
Depart: 10/13/2026

One-way

Basic

From
$207
Seen: 6 hrs ago

Ontario/LA (ONT)to

Miami (MIA)
Depart: 10/14/2026

One-way

Basic

From
$207
Seen: 12 hrs ago

Ontario/LA (ONT)to

Miami (MIA)
Depart: 09/10/2026

One-way

Basic

From
$207
Seen: 8 hrs ago

Ontario/LA (ONT)to

Miami (MIA)
Depart: 09/05/2026

One-way

Basic

From
$218
Seen: 5 hrs ago

Ontario/LA (ONT)to

Miami (MIA)
Depart: 10/30/2026

One-way

Basic

From
$219
Seen: 18 hrs ago

Ontario/LA (ONT)to

Miami (MIA)
Depart: 09/23/2026

One-way

Basic

From
$229
Seen: 12 hrs ago

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Explore flights from Ontario/LA to Miami

Aug 2026
From$258*
Seen: 4 hrs ago
One Way/Basic
Sep 2026
From$207*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$207*
Seen: 12 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $258
Displaying fares for August-2026
  • ONT–MIA, 08/01/2026: From $284
    01

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  • ONT–MIA, 08/04/2026: From $284
    04

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  • ONT–MIA, 08/07/2026: From $289
    07

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  • ONT–MIA, 08/09/2026: From $294
    09

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  • ONT–MIA, 08/20/2026: From $258
    20

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    21

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    28

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    29

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    31

    Mon

    • Range$258-$294

    *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:
    Miami International Airport
    Distance:
    2296 miles

    Route Information

    52† 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 52 weekly flights from Ontario/LA to Miami on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Miami with Southwest, check out our Low Fare Calendar.
    You can rent a car at Miami International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Miami—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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