Flights from Phoenix, AZ to Ontario/LA, CA

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Best Deals on Flights From Phoenix, AZ (PHX) to Ontario/LA, CA (ONT)

Nov 2026
from$130*
Last seen: 6 hours ago
One-way/Economy
Dec 2026
from$66*
Last seen: 15 hours ago
One-way/Economy
Jan 2027
from$62*
Last seen: 19 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $130
cmp-daily-histogram-bars-legend-max-price-aria-label $230
Displaying fares for November-2026
  • PHX–ONT: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

    NOV

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    08

    Sun

  • PHX–ONT, Nov 9, 2026: from $181
    09

    Mon

  • PHX–ONT, Nov 10, 2026: from $181
    10

    Tue

  • PHX–ONT, Nov 11, 2026: from $175
    11

    Wed

  • PHX–ONT, Nov 12, 2026: from $170
    12

    Thu

  • PHX–ONT, Nov 13, 2026: from $168
    13

    Fri

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

    Sat

  • PHX–ONT, Nov 15, 2026: from $184
    15

    Sun

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    16

    Mon

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    17

    Tue

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    18

    Wed

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    19

    Thu

  • PHX–ONT, Nov 20, 2026: from $161
    20

    Fri

  • PHX–ONT, Nov 21, 2026: from $130
    21

    Sat

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    22

    Sun

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    23

    Mon

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    24

    Tue

  • PHX–ONT, Nov 25, 2026: from $130
    25

    Wed

  • PHX–ONT, Nov 26, 2026: from $149
    26

    Thu

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

    Fri

  • PHX–ONT, Nov 28, 2026: from $230
    28

    Sat

  • PHX–ONT, Nov 29, 2026: from $176
    29

    Sun

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    30

    Mon

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    01

    Tue

    DEC

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    02

    Wed

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    03

    Thu

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    04

    Fri

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    05

    Sat

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    06

    Sun

    • Range$130-$230

    *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 Phoenix, AZ 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®.

    Phoenix, AZ Ontario/LA, CA

    Barclays Badge

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