Southwest® flights from Charleston to Ontario/LA from $194
Low fares from Charleston to Ontario/LA
$
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/02/2026
One-way
Basic
From
$194
Seen: 3 hrs ago
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/09/2026
One-way
Basic
From
$194
Seen: 51 minutes ago
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/02/2026
One-way
Choice
From
$239
Seen: 3 hrs ago
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/15/2026
One-way
Basic
From
$239
Seen: 22 hrs ago
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/27/2026
One-way
Basic
From
$239
Seen: 7 hrs ago
Charleston (CHS)to
Ontario/LA (ONT)
Depart: 06/09/2026
One-way
Choice
From
$239
Seen: 51 minutes ago
Flight Details
Departing from:
Charleston International Airport
Arriving at:
LA/Ontario International Airport
Distance:
2159 miles
Route Information
66† 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 66 weekly flights from Charleston to Ontario/LA on Southwest Airlines.
To find the lowest fares by day and time to fly Charleston 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 Charleston 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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