Southwest® flights from Ontario/LA to Atlanta from $169

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Low fares from Ontario/LA to Atlanta

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Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 11/11/2026

One-way

Basic

From
$169
Seen: 20 hrs ago

Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 01/21/2027

One-way

Basic

From
$169
Seen: 7 hrs ago

Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 11/09/2026

One-way

Basic

From
$169
Seen: 5 hrs ago

Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 11/13/2026

One-way

Basic

From
$169
Seen: 3 hrs ago

Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 12/04/2026

One-way

Basic

From
$169
Seen: 13 hrs ago

Ontario/LA (ONT)to

Atlanta (ATL)
Depart: 12/09/2026

One-way

Basic

From
$169
Seen: 10 hrs ago

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Explore flights from Ontario/LA to Atlanta

Oct 2026
From$425*
Seen: 51 minutes ago
One Way/Basic
Nov 2026
From$169*
Seen: 4 hrs ago
One Way/Basic
Dec 2026
From$169*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $169
cmp-daily-histogram-bars-legend-max-price-aria-label $485
Displaying fares for October-2026
  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

    OCT

  • ONT–ATL, 10/21/2026: From $485
    21

    Wed

  • ONT–ATL, 10/22/2026: From $485
    22

    Thu

  • ONT–ATL, 10/23/2026: From $485
    23

    Fri

  • ONT–ATL, 10/24/2026: From $485
    24

    Sat

  • ONT–ATL, 10/25/2026: From $485
    25

    Sun

  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • ONT–ATL, 10/27/2026: From $425
    27

    Tue

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

    Wed

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

    Thu

  • ONT–ATL, 10/30/2026: From $425
    30

    Fri

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

    Sat

  • ONT–ATL, 11/01/2026: From $425
    01

    Sun

    NOV

  • ONT–ATL, 11/02/2026: From $334
    02

    Mon

  • ONT–ATL, 11/03/2026: From $334
    03

    Tue

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

    Wed

  • ONT–ATL, 11/05/2026: From $334
    05

    Thu

  • ONT–ATL, 11/06/2026: From $334
    06

    Fri

  • ONT–ATL, 11/07/2026: From $334
    07

    Sat

  • ONT–ATL, 11/08/2026: From $334
    08

    Sun

  • ONT–ATL, 11/09/2026: From $169
    09

    Mon

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

    Tue

  • ONT–ATL, 11/11/2026: From $169
    11

    Wed

  • ONT–ATL, 11/12/2026: From $304
    12

    Thu

  • ONT–ATL, 11/13/2026: From $169
    13

    Fri

  • ONT–ATL, 11/14/2026: From $169
    14

    Sat

  • ONT–ATL, 11/15/2026: From $169
    15

    Sun

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

    Mon

  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • ONT–ATL, 11/18/2026: From $174
    18

    Wed

  • ONT–ATL, 11/19/2026: From $265
    19

    Thu

    • Range$169-$485

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    LA/Ontario International Airport
    Arriving at:
    Hartsfield-Jackson Atlanta International Airport
    Distance:
    1900 miles

    Questions we hear the most

    There are 134 weekly flights from Ontario/LA to Atlanta on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Atlanta with Southwest, check out our Low Fare Calendar.
    You can rent a car at Hartsfield-Jackson Atlanta International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Atlanta—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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