Flights from Atlanta, GA to Ontario/LA, CA

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Best Deals on Flights From Atlanta, GA (ATL) to Ontario/LA, CA (ONT)

Nov 2026
from$167*
Last seen: 17 hours ago
One-way/Economy
Dec 2026
from$80*
Last seen: 13 hours ago
One-way/Economy
Jan 2027
from$151*
Last seen: 10 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $167
cmp-daily-histogram-bars-legend-max-price-aria-label $353
Displaying fares for November-2026
  • ATL–ONT: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

    NOV

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

    Sun

  • ATL–ONT, Nov 9, 2026: from $259
    09

    Mon

  • ATL–ONT, Nov 10, 2026: from $259
    10

    Tue

  • ATL–ONT, Nov 11, 2026: from $259
    11

    Wed

  • ATL–ONT, Nov 12, 2026: from $259
    12

    Thu

  • ATL–ONT, Nov 13, 2026: from $224
    13

    Fri

  • ATL–ONT, Nov 14, 2026: from $184
    14

    Sat

  • ATL–ONT, Nov 15, 2026: from $224
    15

    Sun

  • ATL–ONT, Nov 16, 2026: from $230
    16

    Mon

  • ATL–ONT, Nov 17, 2026: from $184
    17

    Tue

  • ATL–ONT, Nov 18, 2026: from $184
    18

    Wed

  • ATL–ONT, Nov 19, 2026: from $224
    19

    Thu

  • ATL–ONT, Nov 20, 2026: from $204
    20

    Fri

  • ATL–ONT, Nov 21, 2026: from $190
    21

    Sat

  • ATL–ONT, Nov 22, 2026: from $204
    22

    Sun

  • ATL–ONT, Nov 23, 2026: from $204
    23

    Mon

  • ATL–ONT, Nov 24, 2026: from $170
    24

    Tue

  • ATL–ONT, Nov 25, 2026: from $170
    25

    Wed

  • ATL–ONT, Nov 26, 2026: from $167
    26

    Thu

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

    Fri

  • ATL–ONT, Nov 28, 2026: from $353
    28

    Sat

  • ATL–ONT, Nov 29, 2026: from $311
    29

    Sun

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

    Mon

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

    Tue

    DEC

  • ATL–ONT: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

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

    Thu

  • ATL–ONT: cmp-view-offers-disclaimer. Find Offers
    04

    Fri

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

    Sat

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

    Sun

    • Range$167-$353

    *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 Atlanta, GA to Ontario/LA, CA on Frontier

    $
    Flights Deals from Atlanta, GA to Ontario/LA, CA on Frontier
    From
    To
    Atlanta, GA (ATL)Ontario/LA, CA (ONT)One-way
    /
    Discount Den Basic Fare    		Departing Mar 1, 2027

    From

    $117

    Last seen: 9 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®.

    Atlanta, GA Ontario/LA, CA

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