Flights from Ontario/LA, CA to Las Vegas, NV

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Best Deals on Flights From Ontario/LA, CA (ONT) to Las Vegas, NV (LAS)

Try alternate month or interact with individual days below in order to find offers.
Aug 2026
No results for this month.
Sep 2026
from$61*
Last seen: 3 hours ago
One-way/Economy
Oct 2026
from$77*
Last seen: 21 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $61
cmp-daily-histogram-bars-legend-max-price-aria-label $206
Displaying fares for August-2026
  • ONT–LAS: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

    AUG

  • ONT–LAS: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

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

    Tue

    SEP

  • ONT–LAS, Sep 2, 2026: from $91
    02

    Wed

  • ONT–LAS, Sep 3, 2026: from $165
    03

    Thu

  • ONT–LAS, Sep 4, 2026: from $206
    04

    Fri

  • ONT–LAS, Sep 5, 2026: from $102
    05

    Sat

  • ONT–LAS, Sep 6, 2026: from $67
    06

    Sun

  • ONT–LAS, Sep 7, 2026: from $176
    07

    Mon

  • ONT–LAS, Sep 8, 2026: from $67
    08

    Tue

  • ONT–LAS, Sep 9, 2026: from $118
    09

    Wed

  • ONT–LAS, Sep 10, 2026: from $61
    10

    Thu

  • ONT–LAS, Sep 11, 2026: from $67
    11

    Fri

  • ONT–LAS, Sep 12, 2026: from $118
    12

    Sat

  • ONT–LAS, Sep 13, 2026: from $118
    13

    Sun

  • ONT–LAS, Sep 14, 2026: from $129
    14

    Mon

  • ONT–LAS, Sep 15, 2026: from $147
    15

    Tue

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

    Wed

  • ONT–LAS, Sep 17, 2026: from $129
    17

    Thu

  • ONT–LAS, Sep 18, 2026: from $91
    18

    Fri

  • ONT–LAS, Sep 19, 2026: from $91
    19

    Sat

  • ONT–LAS, Sep 20, 2026: from $99
    20

    Sun

  • ONT–LAS, Sep 21, 2026: from $77
    21

    Mon

  • ONT–LAS, Sep 22, 2026: from $77
    22

    Tue

  • ONT–LAS, Sep 23, 2026: from $77
    23

    Wed

  • ONT–LAS, Sep 24, 2026: from $77
    24

    Thu

  • ONT–LAS, Sep 25, 2026: from $91
    25

    Fri

  • ONT–LAS, Sep 26, 2026: from $77
    26

    Sat

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

    Sun

  • ONT–LAS, Sep 28, 2026: from $77
    28

    Mon

  • ONT–LAS: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

    • Range$61-$206

    *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 Las Vegas, NV on Frontier

    $
    Flights Deals from Ontario/LA, CA to Las Vegas, NV on Frontier
    From
    To
    Ontario/LA, CA (ONT)Las Vegas, NV (LAS)One-way
    /
    Discount Den Basic Fare    		Departing Dec 1, 2026

    From

    $87

    Last seen: 22 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 Las Vegas, NV

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