Southwest® flights from Ontario/LA to Fresno from $140

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Low fares from Ontario/LA to Fresno

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Ontario/LA (ONT)to

Fresno (FAT)
Depart: 10/13/2026

One-way

Basic

From
$140
Seen: 13 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 09/19/2026

One-way

Basic

From
$140
Seen: 18 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 09/12/2026

One-way

Basic

From
$140
Seen: 19 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 08/25/2026

One-way

Basic

From
$140
Seen: 19 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 09/11/2026

One-way

Basic

From
$140
Seen: 7 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 09/02/2026

One-way

Basic

From
$150
Seen: 1 hour ago

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Explore flights from Ontario/LA to Fresno

Aug 2026
From$140*
Seen: 19 hrs ago
One Way/Basic
Sep 2026
From$140*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$140*
Seen: 13 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $140
Displaying fares for August-2026
  • ONT–FAT: cmp-view-offers-disclaimer. Find Offers
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    AUG

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  • ONT–FAT, 08/03/2026: From $409
    03

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  • ONT–FAT, 08/04/2026: From $409
    04

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    Wed

  • ONT–FAT, 08/06/2026: From $305
    06

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    07

    Fri

  • ONT–FAT, 08/08/2026: From $305
    08

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    09

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    11

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    12

    Wed

  • ONT–FAT, 08/13/2026: From $305
    13

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    14

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    18

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    19

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    20

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    21

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    22

    Sat

  • ONT–FAT, 08/23/2026: From $199
    23

    Sun

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    24

    Mon

  • ONT–FAT, 08/25/2026: From $140
    25

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    26

    Wed

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    27

    Thu

  • ONT–FAT, 08/28/2026: From $165
    28

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    29

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    31

    Mon

    • Range$140-$409

    *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:
    Fresno Yosemite International Airport
    Distance:
    222 miles

    Route Information

    67† 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 67 weekly flights from Ontario/LA to Fresno on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Fresno with Southwest, check out our Low Fare Calendar.
    You can rent a car at Fresno Yosemite International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Fresno—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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