Southwest® flights from Cincinnati to Ontario/LA from $198

Promo Code

Low fares from Cincinnati to Ontario/LA

$

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 10/27/2026

One-way

Basic

From
$198
Seen: 1 hour ago

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 12/23/2026

One-way

Basic

From
$232
Seen: 21 hrs ago

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 11/05/2026

One-way

Basic

From
$243
Seen: 9 hrs ago

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 10/27/2026

One-way

Choice

From
$248
Seen: 1 hour ago

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 11/02/2026

One-way

Basic

From
$254
Seen: 6 hrs ago

Cincinnati (CVG)to

Ontario/LA (ONT)
Depart: 11/27/2026

One-way

Basic

From
$276
Seen: 15 hrs ago

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Explore flights from Cincinnati to Ontario/LA

Oct 2026
From$198*
Seen: 1 hour ago
One Way/Basic
Nov 2026
From$243*
Seen: 9 hrs ago
One Way/Basic
Dec 2026
From$232*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $198
cmp-daily-histogram-bars-legend-max-price-aria-label $589
Displaying fares for October-2026
  • CVG–ONT, 10/02/2026: From $589
    02

    Fri

    OCT

  • CVG–ONT, 10/03/2026: From $589
    03

    Sat

  • CVG–ONT, 10/04/2026: From $589
    04

    Sun

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

    Mon

  • CVG–ONT, 10/06/2026: From $589
    06

    Tue

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    07

    Wed

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    08

    Thu

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    09

    Fri

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    10

    Sat

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    11

    Sun

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    12

    Mon

  • CVG–ONT, 10/13/2026: From $509
    13

    Tue

  • CVG–ONT, 10/14/2026: From $509
    14

    Wed

  • CVG–ONT, 10/15/2026: From $319
    15

    Thu

  • CVG–ONT, 10/16/2026: From $319
    16

    Fri

  • CVG–ONT, 10/17/2026: From $319
    17

    Sat

  • CVG–ONT, 10/18/2026: From $324
    18

    Sun

  • CVG–ONT, 10/19/2026: From $319
    19

    Mon

  • CVG–ONT, 10/20/2026: From $319
    20

    Tue

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    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

  • CVG–ONT, 10/27/2026: From $198
    27

    Tue

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    28

    Wed

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    29

    Thu

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    30

    Fri

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    31

    Sat

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    01

    Sun

    NOV

    • Range$198-$589

    *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:
    Cincinnati/Northern Kentucky Airport
    Arriving at:
    LA/Ontario International Airport
    Distance:
    1854 miles

    Route Information

    48† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 48 weekly flights from Cincinnati to Ontario/LA on Southwest Airlines.
    To find the lowest fares by day and time to fly Cincinnati to Ontario/LA with Southwest, check out our Low Fare Calendar.
    You can rent a car at LA/Ontario International Airport book yours with your flight.
    Yes! Flights from Cincinnati to Ontario/LA—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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