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

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Low fares from Ontario/LA to San Jose, CA

$

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 11/02/2026

One-way

Basic

From
$59
Seen: 22 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 11/02/2026

One-way

Choice

From
$94
Seen: 22 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 10/12/2026

One-way

Basic

From
$123
Seen: 21 hrs ago

Ontario/LA (ONT)to

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

One-way

Basic

From
$123
Seen: 22 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 09/29/2026

One-way

Basic

From
$123
Seen: 22 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 10/16/2026

One-way

Basic

From
$123
Seen: 23 hrs ago

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Explore flights from Ontario/LA to San Jose, CA

Aug 2026
From$423*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $123
cmp-daily-histogram-bars-legend-max-price-aria-label $423
Displaying fares for August-2026
  • ONT–SJC, 08/29/2026: From $423
    29

    Sat

    AUG

  • ONT–SJC, 08/30/2026: From $423
    30

    Sun

  • ONT–SJC, 08/31/2026: From $423
    31

    Mon

  • ONT–SJC, 09/01/2026: From $417
    01

    Tue

    SEP

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • ONT–SJC, 09/03/2026: From $423
    03

    Thu

  • ONT–SJC, 09/04/2026: From $334
    04

    Fri

  • ONT–SJC, 09/05/2026: From $334
    05

    Sat

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • ONT–SJC, 09/07/2026: From $333
    07

    Mon

  • ONT–SJC, 09/08/2026: From $328
    08

    Tue

  • ONT–SJC, 09/09/2026: From $329
    09

    Wed

  • ONT–SJC, 09/10/2026: From $334
    10

    Thu

  • ONT–SJC, 09/11/2026: From $221
    11

    Fri

  • ONT–SJC, 09/12/2026: From $221
    12

    Sat

  • ONT–SJC, 09/13/2026: From $221
    13

    Sun

  • ONT–SJC, 09/14/2026: From $221
    14

    Mon

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • ONT–SJC, 09/16/2026: From $216
    16

    Wed

  • ONT–SJC, 09/17/2026: From $221
    17

    Thu

  • ONT–SJC, 09/18/2026: From $123
    18

    Fri

  • ONT–SJC, 09/19/2026: From $123
    19

    Sat

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • ONT–SJC, 09/21/2026: From $123
    21

    Mon

  • ONT–SJC, 09/22/2026: From $123
    22

    Tue

  • ONT–SJC, 09/23/2026: From $123
    23

    Wed

  • ONT–SJC, 09/24/2026: From $123
    24

    Thu

  • ONT–SJC, 09/25/2026: From $123
    25

    Fri

  • ONT–SJC, 09/26/2026: From $123
    26

    Sat

  • ONT–SJC, 09/27/2026: From $181
    27

    Sun

  • ONT–SJC, 09/28/2026: From $123
    28

    Mon

    • Range$123-$423

    *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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