Southwest® flights from Ontario/LA to San Jose, CA from $86

Promo Code

Low fares from Ontario/LA to San Jose, CA

$

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 12/31/2026

One-way

Basic

From
$86
Seen: 17 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 12/25/2026

One-way

Basic

From
$86
Seen: 18 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 01/04/2027

One-way

Basic

From
$86
Seen: 18 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 12/20/2026

One-way

Basic

From
$86
Seen: 13 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 11/22/2026

One-way

Basic

From
$86
Seen: 16 hrs ago

Ontario/LA (ONT)to

San Jose, CA (SJC)
Depart: 12/22/2026

One-way

Basic

From
$86
Seen: 7 hrs ago

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Explore flights from Ontario/LA to San Jose, CA

Oct 2026
From$120*
Seen: 2 hrs ago
One Way/Basic
Nov 2026
From$86*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$86*
Seen: 8 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $120
cmp-daily-histogram-bars-legend-max-price-aria-label $432
Displaying fares for October-2026
  • ONT–SJC, 10/07/2026: From $432
    07

    Wed

    OCT

  • ONT–SJC, 10/08/2026: From $432
    08

    Thu

  • ONT–SJC, 10/09/2026: From $432
    09

    Fri

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

    Sat

  • ONT–SJC, 10/11/2026: From $432
    11

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • ONT–SJC, 10/13/2026: From $343
    13

    Tue

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

    Wed

  • ONT–SJC, 10/15/2026: From $343
    15

    Thu

  • ONT–SJC, 10/16/2026: From $343
    16

    Fri

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • ONT–SJC, 10/18/2026: From $343
    18

    Sun

  • ONT–SJC, 10/19/2026: From $343
    19

    Mon

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

    Tue

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

    Wed

  • ONT–SJC, 10/22/2026: From $230
    22

    Thu

  • ONT–SJC, 10/23/2026: From $230
    23

    Fri

  • ONT–SJC, 10/24/2026: From $230
    24

    Sat

  • ONT–SJC, 10/25/2026: From $230
    25

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • ONT–SJC, 10/27/2026: From $120
    27

    Tue

  • ONT–SJC, 10/28/2026: From $120
    28

    Wed

  • ONT–SJC, 10/29/2026: From $120
    29

    Thu

  • ONT–SJC, 10/30/2026: From $155
    30

    Fri

  • ONT–SJC, 10/31/2026: From $120
    31

    Sat

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

    Sun

    NOV

  • ONT–SJC, 11/02/2026: From $120
    02

    Mon

  • ONT–SJC, 11/03/2026: From $120
    03

    Tue

  • ONT–SJC, 11/04/2026: From $120
    04

    Wed

  • ONT–SJC, 11/05/2026: From $120
    05

    Thu

  • ONT–SJC, 11/06/2026: From $155
    06

    Fri

    • Range$120-$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:
    LA/Ontario International Airport
    Arriving at:
    Norman Y. Mineta San José International Airport
    Average flight time:
    1 hour 14 minutes
    Distance:
    333 miles

    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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