Flights from Ontario/LA, CA to San Jose, CA

Promo Code

Best Deals on Flights From Ontario/LA, CA (ONT) to San Jose, CA (SJC)

Nov 2026
from$124*
Last seen: 1 hour ago
One-way/Economy
Dec 2026
from$58*
Last seen: 1 hour ago
One-way/Economy
Jan 2027
from$95*
Last seen: 50 seconds ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $124
Displaying fares for November-2026
  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    12

    Thu

    NOV

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

    Fri

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

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

    Sun

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

    Mon

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

    Tue

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

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

    Fri

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    21

    Sat

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    23

    Mon

  • ONT–SJC, Nov 24, 2026: from $127
    24

    Tue

  • ONT–SJC, Nov 25, 2026: from $124
    25

    Wed

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

    Thu

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    27

    Fri

  • ONT–SJC, Nov 28, 2026: from $473
    28

    Sat

  • ONT–SJC, Nov 29, 2026: from $580
    29

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    30

    Mon

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    DEC

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

    Wed

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

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

    Fri

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

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

    Sun

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

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

    Thu

  • ONT–SJC: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    • Range$124-$580

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Ontario/LA, CA to San Jose, CA on Frontier

    $
    Flights Deals from Ontario/LA, CA to San Jose, CA on Frontier
    From
    To
    Ontario/LA, CA (ONT)San Jose, CA (SJC)One-way
    /
    Discount Den Basic Fare    		Departing Mar 7, 2027

    From

    $209

    Last seen: 2 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Ontario/LA, CA San Jose, CA

    Barclays Badge

    Earn up to 60,000 Miles after qualifying activity. Terms apply.