Southwest® flights from Ontario/LA to Las Vegas from $50

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Low fares from Ontario/LA to Las Vegas

$

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 11/24/2026

One-way

Basic

From
$50
Seen: 22 hrs ago

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 01/14/2027

One-way

Basic

From
$50
Seen: 21 hrs ago

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 12/11/2026

One-way

Basic

From
$50
Seen: 8 hrs ago

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 11/17/2026

One-way

Basic

From
$50
Seen: 17 hrs ago

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 01/13/2027

One-way

Basic

From
$50
Seen: 10 hrs ago

Ontario/LA (ONT)to

Las Vegas (LAS)
Depart: 01/09/2027

One-way

Basic

From
$50
Seen: 10 hrs ago

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Explore flights from Ontario/LA to Las Vegas

Oct 2026
From$186*
Seen: 8 hrs ago
One Way/Basic
Nov 2026
From$50*
Seen: 14 hrs ago
One Way/Basic
Dec 2026
From$50*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $50
cmp-daily-histogram-bars-legend-max-price-aria-label $222
Displaying fares for October-2026
  • ONT–LAS, 10/22/2026: From $222
    22

    Thu

    OCT

  • ONT–LAS, 10/23/2026: From $222
    23

    Fri

  • ONT–LAS, 10/24/2026: From $212
    24

    Sat

  • ONT–LAS, 10/25/2026: From $222
    25

    Sun

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

    Mon

  • ONT–LAS, 10/27/2026: From $212
    27

    Tue

  • ONT–LAS, 10/28/2026: From $186
    28

    Wed

  • ONT–LAS, 10/29/2026: From $196
    29

    Thu

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

    Fri

  • ONT–LAS, 10/31/2026: From $186
    31

    Sat

  • ONT–LAS, 11/01/2026: From $196
    01

    Sun

    NOV

  • ONT–LAS, 11/02/2026: From $196
    02

    Mon

  • ONT–LAS, 11/03/2026: From $186
    03

    Tue

  • ONT–LAS, 11/04/2026: From $99
    04

    Wed

  • ONT–LAS, 11/05/2026: From $109
    05

    Thu

  • ONT–LAS, 11/06/2026: From $109
    06

    Fri

  • ONT–LAS: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • ONT–LAS, 11/08/2026: From $109
    08

    Sun

  • ONT–LAS: cmp-view-offers-disclaimer. Find Offers
    09

    Mon

  • ONT–LAS, 11/10/2026: From $82
    10

    Tue

  • ONT–LAS, 11/11/2026: From $50
    11

    Wed

  • ONT–LAS, 11/12/2026: From $50
    12

    Thu

  • ONT–LAS, 11/13/2026: From $50
    13

    Fri

  • ONT–LAS, 11/14/2026: From $50
    14

    Sat

  • ONT–LAS, 11/15/2026: From $55
    15

    Sun

  • ONT–LAS, 11/16/2026: From $50
    16

    Mon

  • ONT–LAS, 11/17/2026: From $50
    17

    Tue

  • ONT–LAS, 11/18/2026: From $50
    18

    Wed

  • ONT–LAS, 11/19/2026: From $149
    19

    Thu

  • ONT–LAS, 11/20/2026: From $138
    20

    Fri

  • ONT–LAS, 11/21/2026: From $50
    21

    Sat

    • Range$50-$222

    *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:
    McCarran International Airport
    Average flight time:
    1 hour 5 minutes
    Distance:
    197 miles

    Questions we hear the most

    The average flight time from Ontario/LA to Las Vegas is 1 hour 5 minutes.
    There are 156 weekly flights from Ontario/LA to Las Vegas on Southwest Airlines.
    Yes, Southwest flies nonstop from Ontario/LA to Las Vegas 5 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Ontario/LA to Las Vegas 4 times per day on Saturdays and 5 times per day on Sundays.
    To find the lowest fares by day and time to fly Ontario/LA to Las Vegas with Southwest, check out our Low Fare Calendar.
    You can rent a car at McCarran International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Las Vegas—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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