Southwest® flights from San Jose, CA to Ontario/LA from $59

Promo Code

Low fares from San Jose, CA to Ontario/LA

$

San Jose, CA (SJC)to

Ontario/LA (ONT)
Depart: 11/05/2026

One-way

Basic

From
$59
Seen: 22 hrs ago

San Jose, CA (SJC)to

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

One-way

Basic

From
$59
Seen: 17 hrs ago

San Jose, CA (SJC)to

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

One-way

Basic

From
$59
Seen: 19 hrs ago

San Jose, CA (SJC)to

Ontario/LA (ONT)
Depart: 12/17/2026

One-way

Basic

From
$59
Seen: 18 hrs ago

San Jose, CA (SJC)to

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

One-way

Basic

From
$59
Seen: 13 hrs ago

San Jose, CA (SJC)to

Ontario/LA (ONT)
Depart: 11/18/2026

One-way

Basic

From
$59
Seen: 13 hrs ago

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Explore flights from San Jose, CA to Ontario/LA

Oct 2026
From$59*
Seen: 1 hour ago
One Way/Basic
Nov 2026
From$59*
Seen: 19 hrs ago
One Way/Basic
Dec 2026
From$59*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $432
Displaying fares for October-2026
  • SJC–ONT, 10/02/2026: From $432
    02

    Fri

    OCT

  • SJC–ONT, 10/03/2026: From $432
    03

    Sat

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

    Sun

  • SJC–ONT, 10/05/2026: From $432
    05

    Mon

  • SJC–ONT, 10/06/2026: From $432
    06

    Tue

  • SJC–ONT, 10/07/2026: From $432
    07

    Wed

  • SJC–ONT, 10/08/2026: From $343
    08

    Thu

  • SJC–ONT, 10/09/2026: From $343
    09

    Fri

  • SJC–ONT, 10/10/2026: From $343
    10

    Sat

  • SJC–ONT, 10/11/2026: From $343
    11

    Sun

  • SJC–ONT, 10/12/2026: From $343
    12

    Mon

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

    Tue

  • SJC–ONT, 10/14/2026: From $343
    14

    Wed

  • SJC–ONT, 10/15/2026: From $230
    15

    Thu

  • SJC–ONT, 10/16/2026: From $230
    16

    Fri

  • SJC–ONT, 10/17/2026: From $230
    17

    Sat

  • SJC–ONT, 10/18/2026: From $230
    18

    Sun

  • SJC–ONT, 10/19/2026: From $230
    19

    Mon

  • SJC–ONT, 10/20/2026: From $230
    20

    Tue

  • SJC–ONT, 10/21/2026: From $230
    21

    Wed

  • SJC–ONT, 10/22/2026: From $59
    22

    Thu

  • SJC–ONT, 10/23/2026: From $86
    23

    Fri

  • SJC–ONT, 10/24/2026: From $86
    24

    Sat

  • SJC–ONT, 10/25/2026: From $190
    25

    Sun

  • SJC–ONT, 10/26/2026: From $59
    26

    Mon

  • SJC–ONT, 10/27/2026: From $59
    27

    Tue

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

    Wed

  • SJC–ONT, 10/29/2026: From $59
    29

    Thu

  • SJC–ONT, 10/30/2026: From $86
    30

    Fri

  • SJC–ONT, 10/31/2026: From $59
    31

    Sat

  • SJC–ONT, 11/01/2026: From $190
    01

    Sun

    NOV

    • Range$59-$432

    *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:
    Norman Y. Mineta San José International Airport
    Arriving at:
    LA/Ontario International Airport
    Average flight time:
    1 hour 16 minutes
    Distance:
    333 miles

    Route Information

    139† Weekly flights
    • 3‡ 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 San Jose, CA to Ontario/LA is 1 hour 16 minutes.
    There are 139 weekly flights from San Jose, CA to Ontario/LA on Southwest Airlines.
    Yes, Southwest flies nonstop from San Jose, CA to Ontario/LA 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Jose, CA 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 San Jose, CA 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 San Jose, CA 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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