Flights from Ontario/LA, CA to San Antonio, TX

Promo Code

Best Deals on Flights From Ontario/LA, CA (ONT) to San Antonio, TX (SAT)

Try alternate month or interact with individual days below in order to find offers.
Sep 2026
No results for this month.
Oct 2026
from$109*
Last seen: 3 hours ago
One-way/Economy
Nov 2026
from$97*
Last seen: 12 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $109
Displaying fares for September-2026
  • ONT–SAT: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

    SEP

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

    Wed

  • ONT–SAT, Oct 1, 2026: from $214
    01

    Thu

    OCT

  • ONT–SAT, Oct 2, 2026: from $214
    02

    Fri

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

    Sat

  • ONT–SAT, Oct 4, 2026: from $214
    04

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

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

    Fri

  • ONT–SAT, Oct 10, 2026: from $214
    10

    Sat

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

    Sun

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

    Mon

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

    Tue

  • ONT–SAT, Oct 14, 2026: from $188
    14

    Wed

  • ONT–SAT, Oct 15, 2026: from $188
    15

    Thu

  • ONT–SAT, Oct 16, 2026: from $188
    16

    Fri

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

    Sat

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

    Sun

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

    Mon

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

    Tue

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

    Wed

  • ONT–SAT, Oct 22, 2026: from $109
    22

    Thu

  • ONT–SAT, Oct 23, 2026: from $109
    23

    Fri

  • ONT–SAT: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • ONT–SAT: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

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

    Mon

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

    Tue

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

    Wed

    • Range$109-$214

    *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 Antonio, TX on Frontier

    $
    Flights Deals from Ontario/LA, CA to San Antonio, TX on Frontier
    From
    To
    Ontario/LA, CA (ONT)San Antonio, TX (SAT)One-way
    /
    Discount Den Basic Fare    		Departing Feb 9, 2027

    From

    $146

    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 Antonio, TX

    Barclays Badge

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