Southwest® flights from Phoenix to Ontario/LA from $72

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Low fares from Phoenix to Ontario/LA

$

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 12/07/2026

One-way

Basic

From
$72
Seen: 21 hrs ago

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 11/12/2026

One-way

Basic

From
$72
Seen: 21 hrs ago

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 12/08/2026

One-way

Basic

From
$72
Seen: 19 hrs ago

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 01/20/2027

One-way

Basic

From
$72
Seen: 19 hrs ago

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 11/26/2026

One-way

Basic

From
$72
Seen: 10 hrs ago

Phoenix (PHX)to

Ontario/LA (ONT)
Depart: 11/15/2026

One-way

Basic

From
$72
Seen: 17 hrs ago

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Explore flights from Phoenix to Ontario/LA

Oct 2026
From$254*
Seen: 12 hrs ago
One Way/Basic
Nov 2026
From$72*
Seen: 21 hrs ago
One Way/Basic
Dec 2026
From$72*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $72
cmp-daily-histogram-bars-legend-max-price-aria-label $270
Displaying fares for October-2026
  • PHX–ONT, 10/22/2026: From $270
    22

    Thu

    OCT

  • PHX–ONT, 10/23/2026: From $270
    23

    Fri

  • PHX–ONT, 10/24/2026: From $254
    24

    Sat

  • PHX–ONT, 10/25/2026: From $270
    25

    Sun

  • PHX–ONT, 10/26/2026: From $270
    26

    Mon

  • PHX–ONT, 10/27/2026: From $254
    27

    Tue

  • PHX–ONT, 10/28/2026: From $254
    28

    Wed

  • PHX–ONT, 10/29/2026: From $270
    29

    Thu

  • PHX–ONT, 10/30/2026: From $270
    30

    Fri

  • PHX–ONT, 10/31/2026: From $254
    31

    Sat

  • PHX–ONT, 11/01/2026: From $270
    01

    Sun

    NOV

  • PHX–ONT, 11/02/2026: From $270
    02

    Mon

  • PHX–ONT, 11/03/2026: From $254
    03

    Tue

  • PHX–ONT, 11/04/2026: From $247
    04

    Wed

  • PHX–ONT, 11/05/2026: From $247
    05

    Thu

  • PHX–ONT, 11/06/2026: From $247
    06

    Fri

  • PHX–ONT, 11/07/2026: From $247
    07

    Sat

  • PHX–ONT, 11/08/2026: From $247
    08

    Sun

  • PHX–ONT, 11/09/2026: From $72
    09

    Mon

  • PHX–ONT, 11/10/2026: From $72
    10

    Tue

  • PHX–ONT, 11/11/2026: From $72
    11

    Wed

  • PHX–ONT, 11/12/2026: From $72
    12

    Thu

  • PHX–ONT, 11/13/2026: From $72
    13

    Fri

  • PHX–ONT, 11/14/2026: From $72
    14

    Sat

  • PHX–ONT, 11/15/2026: From $72
    15

    Sun

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

    Mon

  • PHX–ONT, 11/17/2026: From $72
    17

    Tue

  • PHX–ONT, 11/18/2026: From $72
    18

    Wed

  • PHX–ONT, 11/19/2026: From $72
    19

    Thu

  • PHX–ONT, 11/20/2026: From $110
    20

    Fri

  • PHX–ONT, 11/21/2026: From $82
    21

    Sat

    • Range$72-$270

    *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:
    Sky Harbor International Airport
    Arriving at:
    LA/Ontario International Airport
    Average flight time:
    1 hour 15 minutes
    Distance:
    325 miles

    Questions we hear the most

    The average flight time from Phoenix to Ontario/LA is 1 hour 15 minutes.
    There are 154 weekly flights from Phoenix to Ontario/LA on Southwest Airlines.
    Yes, Southwest flies nonstop from Phoenix to Ontario/LA 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Phoenix to Ontario/LA 3 times per day on Saturdays and 4 times per day on Sundays.
    To find the lowest fares by day and time to fly Phoenix 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 Phoenix 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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