Southwest® flights from Ontario/LA to Fresno from $139

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Low fares from Ontario/LA to Fresno

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Ontario/LA (ONT)to

Fresno (FAT)
Depart: 11/19/2026

One-way

Basic

From
$139
Seen: 12 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 10/31/2026

One-way

Basic

From
$139
Seen: 1 hour ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 09/30/2026

One-way

Basic

From
$139
Seen: 4 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 10/16/2026

One-way

Basic

From
$160
Seen: 23 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 10/01/2026

One-way

Basic

From
$170
Seen: 4 hrs ago

Ontario/LA (ONT)to

Fresno (FAT)
Depart: 10/31/2026

One-way

Choice

From
$174
Seen: 1 hour ago

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Explore flights from Ontario/LA to Fresno

Sep 2026
From$139*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 1 hour ago
One Way/Basic
Nov 2026
From$139*
Seen: 12 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $409
Displaying fares for September-2026
  • ONT–FAT, 09/09/2026: From $409
    09

    Wed

    SEP

  • ONT–FAT, 09/10/2026: From $409
    10

    Thu

  • ONT–FAT, 09/11/2026: From $409
    11

    Fri

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

    Sat

  • ONT–FAT, 09/13/2026: From $409
    13

    Sun

  • ONT–FAT: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • ONT–FAT: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

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

    Wed

  • ONT–FAT, 09/17/2026: From $305
    17

    Thu

  • ONT–FAT, 09/18/2026: From $305
    18

    Fri

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

    Sat

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

    Sun

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    21

    Mon

  • ONT–FAT, 09/22/2026: From $235
    22

    Tue

  • ONT–FAT, 09/23/2026: From $235
    23

    Wed

  • ONT–FAT, 09/24/2026: From $235
    24

    Thu

  • ONT–FAT: cmp-view-offers-disclaimer. Find Offers
    25

    Fri

  • ONT–FAT: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • ONT–FAT, 09/27/2026: From $240
    27

    Sun

  • ONT–FAT, 09/28/2026: From $239
    28

    Mon

  • ONT–FAT, 09/29/2026: From $235
    29

    Tue

  • ONT–FAT, 09/30/2026: From $139
    30

    Wed

  • ONT–FAT, 10/01/2026: From $170
    01

    Thu

    OCT

  • ONT–FAT, 10/02/2026: From $195
    02

    Fri

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    03

    Sat

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    04

    Sun

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    05

    Mon

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    06

    Tue

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    07

    Wed

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

    Thu

    • Range$139-$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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