Flights from Austin, TX to Ontario/LA, CA

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Best Deals on Flights From Austin, TX (AUS) to Ontario/LA, CA (ONT)

Sep 2026
from$183*
Last seen: 23 hours ago
One-way/Economy
Oct 2026
from$93*
Last seen: 2 hours ago
One-way/Economy
Nov 2026
from$93*
Last seen: 5 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $93
cmp-daily-histogram-bars-legend-max-price-aria-label $183
Displaying fares for September-2026
  • AUS–ONT: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    SEP

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    24

    Thu

  • AUS–ONT, Sep 25, 2026: from $183
    25

    Fri

  • AUS–ONT, Sep 26, 2026: from $183
    26

    Sat

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

    Sun

  • AUS–ONT, Sep 28, 2026: from $183
    28

    Mon

  • AUS–ONT, Sep 29, 2026: from $183
    29

    Tue

  • AUS–ONT, Sep 30, 2026: from $183
    30

    Wed

  • AUS–ONT, Oct 1, 2026: from $183
    01

    Thu

    OCT

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    02

    Fri

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    03

    Sat

  • AUS–ONT, Oct 4, 2026: from $183
    04

    Sun

  • AUS–ONT, Oct 5, 2026: from $162
    05

    Mon

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    06

    Tue

  • AUS–ONT, Oct 7, 2026: from $141
    07

    Wed

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

    Thu

  • AUS–ONT, Oct 9, 2026: from $183
    09

    Fri

  • AUS–ONT, Oct 10, 2026: from $183
    10

    Sat

  • AUS–ONT, Oct 11, 2026: from $183
    11

    Sun

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

    Mon

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

    Tue

  • AUS–ONT, Oct 14, 2026: from $93
    14

    Wed

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

    Thu

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

    Fri

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    17

    Sat

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    18

    Sun

  • AUS–ONT, Oct 19, 2026: from $103
    19

    Mon

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

    Tue

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

    Wed

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

    Thu

    • Range$93-$183

    *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 Austin, TX to Ontario/LA, CA on Frontier

    $
    *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®.

    Austin, TX Ontario/LA, CA

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