Flights from Oakland, CA to Ontario/LA, CA

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Best Deals on Flights From Oakland, CA (OAK) to Ontario/LA, CA (ONT)

Oct 2026
from$129*
Last seen: 3 hours ago
One-way/Economy
Nov 2026
from$80*
Last seen: 4 hours ago
One-way/Economy
Dec 2026
from$123*
Last seen: 20 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $91
Displaying fares for October-2026
  • OAK–ONT: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

    OCT

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    18

    Sun

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    19

    Mon

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    20

    Tue

  • OAK–ONT, Oct 21, 2026: from $214
    21

    Wed

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    22

    Thu

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    23

    Fri

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    24

    Sat

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    25

    Sun

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    26

    Mon

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

    Tue

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

    Wed

  • OAK–ONT, Oct 29, 2026: from $189
    29

    Thu

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

    Fri

  • OAK–ONT, Oct 31, 2026: from $129
    31

    Sat

  • OAK–ONT, Nov 1, 2026: from $91
    01

    Sun

    NOV

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    02

    Mon

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    03

    Tue

  • OAK–ONT, Nov 4, 2026: from $129
    04

    Wed

  • OAK–ONT, Nov 5, 2026: from $111
    05

    Thu

  • OAK–ONT, Nov 6, 2026: from $120
    06

    Fri

  • OAK–ONT, Nov 7, 2026: from $120
    07

    Sat

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    08

    Sun

  • OAK–ONT, Nov 9, 2026: from $91
    09

    Mon

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

    Tue

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

    Wed

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    12

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

    • Range$91-$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 Oakland, CA 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®.

    Oakland, CA Ontario/LA, CA

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