Southwest® flights from Ontario/LA to Phoenix from $59

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Low fares from Ontario/LA to Phoenix

$

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 10/07/2026

One-way

Basic

From
$59
Seen: 21 hrs ago

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 10/27/2026

One-way

Basic

From
$59
Seen: 21 hrs ago

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 12/03/2026

One-way

Basic

From
$59
Seen: 14 hrs ago

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 10/28/2026

One-way

Basic

From
$59
Seen: 14 hrs ago

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 11/11/2026

One-way

Basic

From
$59
Seen: 18 hrs ago

Ontario/LA (ONT)to

Phoenix (PHX)
Depart: 11/07/2026

One-way

Basic

From
$59
Seen: 17 hrs ago

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Explore flights from Ontario/LA to Phoenix

Sep 2026
From$59*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$59*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $250
Displaying fares for September-2026
  • ONT–PHX: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    SEP

  • ONT–PHX, 09/12/2026: From $234
    12

    Sat

  • ONT–PHX, 09/13/2026: From $250
    13

    Sun

  • ONT–PHX, 09/14/2026: From $250
    14

    Mon

  • ONT–PHX, 09/15/2026: From $234
    15

    Tue

  • ONT–PHX, 09/16/2026: From $234
    16

    Wed

  • ONT–PHX, 09/17/2026: From $250
    17

    Thu

  • ONT–PHX, 09/18/2026: From $250
    18

    Fri

  • ONT–PHX, 09/19/2026: From $234
    19

    Sat

  • ONT–PHX, 09/20/2026: From $250
    20

    Sun

  • ONT–PHX, 09/21/2026: From $250
    21

    Mon

  • ONT–PHX, 09/22/2026: From $234
    22

    Tue

  • ONT–PHX, 09/23/2026: From $227
    23

    Wed

  • ONT–PHX, 09/24/2026: From $227
    24

    Thu

  • ONT–PHX, 09/25/2026: From $227
    25

    Fri

  • ONT–PHX, 09/26/2026: From $227
    26

    Sat

  • ONT–PHX, 09/27/2026: From $227
    27

    Sun

  • ONT–PHX, 09/28/2026: From $227
    28

    Mon

  • ONT–PHX, 09/29/2026: From $227
    29

    Tue

  • ONT–PHX, 09/30/2026: From $59
    30

    Wed

  • ONT–PHX, 10/01/2026: From $59
    01

    Thu

    OCT

  • ONT–PHX, 10/02/2026: From $86
    02

    Fri

  • ONT–PHX, 10/03/2026: From $59
    03

    Sat

  • ONT–PHX, 10/04/2026: From $206
    04

    Sun

  • ONT–PHX, 10/05/2026: From $59
    05

    Mon

  • ONT–PHX, 10/06/2026: From $59
    06

    Tue

  • ONT–PHX, 10/07/2026: From $59
    07

    Wed

  • ONT–PHX, 10/08/2026: From $69
    08

    Thu

  • ONT–PHX, 10/09/2026: From $86
    09

    Fri

  • ONT–PHX, 10/10/2026: From $59
    10

    Sat

    • Range$59-$250

    *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:
    Sky Harbor International Airport
    Average flight time:
    1 hour 16 minutes
    Distance:
    325 miles

    Route Information

    156† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 3‡ Nonstop flights on Saturday
    • 4‡ 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 Ontario/LA to Phoenix is 1 hour 16 minutes.
    There are 156 weekly flights from Ontario/LA to Phoenix on Southwest Airlines.
    Yes, Southwest flies nonstop from Ontario/LA to Phoenix 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Ontario/LA to Phoenix 3 times per day on Saturdays and 4 times per day on Sundays.
    To find the lowest fares by day and time to fly Ontario/LA to Phoenix with Southwest, check out our Low Fare Calendar.
    You can rent a car at Sky Harbor International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Phoenix—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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