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

Promo Code

Low fares from Ontario/LA to San Jose, CA

$

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 09/05/2026

One-way

Basic

From
$59
Seen: 21 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 09/11/2026

One-way

Basic

From
$59
Seen: 6 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 10/30/2026

One-way

Basic

From
$59
Seen: 4 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 09/06/2026

One-way

Basic

From
$69
Seen: 16 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 10/27/2026

One-way

Basic

From
$76
Seen: 19 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 10/14/2026

One-way

Basic

From
$76
Seen: 19 hrs ago

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Explore flights from Ontario/LA to San Jose, CA

Aug 2026
From$170*
Seen: 10 hrs ago
One Way/Basic
Sep 2026
From$59*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $412
Displaying fares for August-2026
  • ONT–SJC, 08/08/2026: From $412
    08

    Sat

    AUG

  • ONT–SJC, 08/09/2026: From $412
    09

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    10

    Mon

  • ONT–SJC, 08/11/2026: From $407
    11

    Tue

  • ONT–SJC, 08/12/2026: From $407
    12

    Wed

  • ONT–SJC, 08/13/2026: From $412
    13

    Thu

  • ONT–SJC, 08/14/2026: From $412
    14

    Fri

  • ONT–SJC, 08/15/2026: From $323
    15

    Sat

  • ONT–SJC, 08/16/2026: From $323
    16

    Sun

  • ONT–SJC, 08/17/2026: From $323
    17

    Mon

  • ONT–SJC, 08/18/2026: From $318
    18

    Tue

  • ONT–SJC, 08/19/2026: From $318
    19

    Wed

  • ONT–SJC, 08/20/2026: From $323
    20

    Thu

  • ONT–SJC, 08/21/2026: From $323
    21

    Fri

  • ONT–SJC, 08/22/2026: From $210
    22

    Sat

  • ONT–SJC, 08/23/2026: From $210
    23

    Sun

  • ONT–SJC, 08/24/2026: From $210
    24

    Mon

  • ONT–SJC, 08/25/2026: From $205
    25

    Tue

  • ONT–SJC, 08/26/2026: From $205
    26

    Wed

  • ONT–SJC, 08/27/2026: From $210
    27

    Thu

  • ONT–SJC, 08/28/2026: From $210
    28

    Fri

  • ONT–SJC, 08/29/2026: From $170
    29

    Sat

  • ONT–SJC, 08/30/2026: From $170
    30

    Sun

  • ONT–SJC, 08/31/2026: From $170
    31

    Mon

  • ONT–SJC, 09/01/2026: From $165
    01

    Tue

    SEP

  • ONT–SJC, 09/02/2026: From $165
    02

    Wed

  • ONT–SJC, 09/03/2026: From $170
    03

    Thu

  • ONT–SJC, 09/04/2026: From $170
    04

    Fri

  • ONT–SJC, 09/05/2026: From $59
    05

    Sat

  • ONT–SJC, 09/06/2026: From $69
    06

    Sun

  • ONT–SJC, 09/07/2026: From $170
    07

    Mon

    • Range$59-$412

    *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:
    Norman Y. Mineta San José International Airport
    Average flight time:
    1 hour 14 minutes
    Distance:
    333 miles

    Route Information

    142† 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 Ontario/LA to San Jose, CA is 1 hour 14 minutes.
    There are 142 weekly flights from Ontario/LA to San Jose, CA on Southwest Airlines.
    Yes, Southwest flies nonstop from Ontario/LA to San Jose, CA 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Ontario/LA to San Jose, CA 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 San Jose, CA with Southwest, check out our Low Fare Calendar.
    You can rent a car at Norman Y. Mineta San José International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to San Jose, CA—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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