Southwest® flights from Ontario/LA to Salt Lake City from $152

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Low fares from Ontario/LA to Salt Lake City

$

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 11/04/2026

One-way

Basic

From
$147
Seen: 4 hrs ago

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 08/25/2026

One-way

Basic

From
$152
Seen: 18 hrs ago

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 09/28/2026

One-way

Basic

From
$152
Seen: 23 hrs ago

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 09/19/2026

One-way

Basic

From
$152
Seen: 16 hrs ago

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 09/26/2026

One-way

Basic

From
$152
Seen: 14 hrs ago

Ontario/LA (ONT)to

Salt Lake City (SLC)
Depart: 09/10/2026

One-way

Basic

From
$152
Seen: 11 hrs ago

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Explore flights from Ontario/LA to Salt Lake City

Aug 2026
From$152*
Seen: 18 hrs ago
One Way/Basic
Sep 2026
From$152*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$152*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $152
cmp-daily-histogram-bars-legend-max-price-aria-label $335
Displaying fares for August-2026
  • ONT–SLC, 08/03/2026: From $335
    03

    Mon

    AUG

  • ONT–SLC, 08/04/2026: From $335
    04

    Tue

  • ONT–SLC, 08/05/2026: From $335
    05

    Wed

  • ONT–SLC, 08/06/2026: From $335
    06

    Thu

  • ONT–SLC, 08/07/2026: From $335
    07

    Fri

  • ONT–SLC, 08/08/2026: From $275
    08

    Sat

  • ONT–SLC, 08/09/2026: From $275
    09

    Sun

  • ONT–SLC, 08/10/2026: From $275
    10

    Mon

  • ONT–SLC, 08/11/2026: From $275
    11

    Tue

  • ONT–SLC, 08/12/2026: From $275
    12

    Wed

  • ONT–SLC, 08/13/2026: From $275
    13

    Thu

  • ONT–SLC, 08/14/2026: From $275
    14

    Fri

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

    Sat

  • ONT–SLC, 08/16/2026: From $210
    16

    Sun

  • ONT–SLC, 08/17/2026: From $199
    17

    Mon

  • ONT–SLC, 08/18/2026: From $199
    18

    Tue

  • ONT–SLC, 08/19/2026: From $199
    19

    Wed

  • ONT–SLC, 08/20/2026: From $199
    20

    Thu

  • ONT–SLC, 08/21/2026: From $199
    21

    Fri

  • ONT–SLC, 08/22/2026: From $152
    22

    Sat

  • ONT–SLC, 08/23/2026: From $210
    23

    Sun

  • ONT–SLC: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • ONT–SLC, 08/25/2026: From $152
    25

    Tue

  • ONT–SLC, 08/26/2026: From $152
    26

    Wed

  • ONT–SLC: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

  • ONT–SLC, 08/28/2026: From $161
    28

    Fri

  • ONT–SLC, 08/29/2026: From $152
    29

    Sat

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

    Sun

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

    Mon

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

    Tue

    SEP

  • ONT–SLC: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

    • Range$152-$335

    *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:
    Salt Lake City International Airport
    Distance:
    558 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 Salt Lake City on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Salt Lake City with Southwest, check out our Low Fare Calendar.
    You can rent a car at Salt Lake City International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Salt Lake City—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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