Southwest® flights from Las Vegas to Ontario/LA from $109

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Low fares from Las Vegas to Ontario/LA

$

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 11/10/2026

One-way

Basic

From
$109
Seen: 18 hrs ago

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 11/16/2026

One-way

Basic

From
$109
Seen: 17 hrs ago

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 11/09/2026

One-way

Basic

From
$109
Seen: 9 hrs ago

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 11/25/2026

One-way

Basic

From
$109
Seen: 2 hrs ago

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 11/11/2026

One-way

Basic

From
$109
Seen: 1 hour ago

Las Vegas (LAS)to

Ontario/LA (ONT)
Depart: 12/30/2026

One-way

Basic

From
$109
Seen: 22 hrs ago

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Explore flights from Las Vegas to Ontario/LA

Oct 2026
From$109*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$109*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$109*
Seen: 17 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $346
Displaying fares for October-2026
  • LAS–ONT, 10/01/2026: From $346
    01

    Thu

    OCT

  • LAS–ONT, 10/02/2026: From $346
    02

    Fri

  • LAS–ONT, 10/03/2026: From $346
    03

    Sat

  • LAS–ONT: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • LAS–ONT, 10/05/2026: From $346
    05

    Mon

  • LAS–ONT: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • LAS–ONT, 10/07/2026: From $346
    07

    Wed

  • LAS–ONT, 10/08/2026: From $326
    08

    Thu

  • LAS–ONT, 10/09/2026: From $326
    09

    Fri

  • LAS–ONT, 10/10/2026: From $326
    10

    Sat

  • LAS–ONT, 10/11/2026: From $326
    11

    Sun

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

    Mon

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

    Tue

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    14

    Wed

  • LAS–ONT, 10/15/2026: From $215
    15

    Thu

  • LAS–ONT, 10/16/2026: From $215
    16

    Fri

  • LAS–ONT: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • LAS–ONT, 10/18/2026: From $215
    18

    Sun

  • LAS–ONT, 10/19/2026: From $215
    19

    Mon

  • LAS–ONT, 10/20/2026: From $215
    20

    Tue

  • LAS–ONT, 10/21/2026: From $215
    21

    Wed

  • LAS–ONT, 10/22/2026: From $109
    22

    Thu

  • LAS–ONT, 10/23/2026: From $127
    23

    Fri

  • LAS–ONT, 10/24/2026: From $109
    24

    Sat

  • LAS–ONT, 10/25/2026: From $195
    25

    Sun

  • LAS–ONT, 10/26/2026: From $127
    26

    Mon

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

    Tue

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

    Wed

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

    Thu

  • LAS–ONT, 10/30/2026: From $127
    30

    Fri

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

    Sat

    • Range$109-$346

    *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:
    McCarran International Airport
    Arriving at:
    LA/Ontario International Airport
    Average flight time:
    1 hour 4 minutes
    Distance:
    197 miles

    Route Information

    153† Weekly flights
    • 5‡ Nonstop flights per day Monday through Friday
    • 4‡ Nonstop flights on Saturday
    • 5‡ Nonstop flights on Sunday

    † 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

    The average flight time from Las Vegas to Ontario/LA is 1 hour 4 minutes.
    There are 153 weekly flights from Las Vegas to Ontario/LA on Southwest Airlines.
    Yes, Southwest flies nonstop from Las Vegas to Ontario/LA 5 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Las Vegas to Ontario/LA 4 times per day on Saturdays and 5 times per day on Sundays.
    To find the lowest fares by day and time to fly Las Vegas to Ontario/LA with Southwest, check out our Low Fare Calendar.
    You can rent a car at LA/Ontario International Airport book yours with your flight.
    Yes! Flights from Las Vegas to Ontario/LA—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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