Southwest® flights from Cincinnati to Ontario/LA from $199
Low fares from Cincinnati to Ontario/LA
$
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 05/16/2026
One-way
Basic
From
$199
Seen: 23 hrs ago
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 05/20/2026
One-way
Basic
From
$199
Seen: 5 hrs ago
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 05/27/2026
One-way
Basic
From
$204
Seen: 4 hrs ago
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 06/02/2026
One-way
Basic
From
$211
Seen: 12 hrs ago
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 06/21/2026
One-way
Basic
From
$244
Seen: 4 hrs ago
Cincinnati (CVG)to
Ontario/LA (ONT)
Depart: 06/13/2026
One-way
Basic
From
$244
Seen: 7 hrs ago
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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