Looking for more low-fare flights?
Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.
Find low faresSouthwest® flights from Las Vegas to Ontario/LA from $69
expand_more
1 Passenger
expand_morePromo Code
expand_moretoday
today
Low fares from Las Vegas to Ontario/LA
$
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 03/04/2026
One-way
Basic
From
$69
Seen: 22 hrs ago
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 04/04/2026
One-way
Basic
From
$86
Seen: 22 hrs ago
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 04/20/2026
One-way
Basic
From
$86
Seen: 4 hrs ago
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 04/22/2026
One-way
Basic
From
$86
Seen: 2 hrs ago
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 04/16/2026
One-way
Basic
From
$86
Seen: 46 minutes ago
Las Vegas (LAS)to
Ontario/LA (ONT)
Depart: 04/18/2026
One-way
Basic
From
$86
Seen: 20 hrs ago
Explore flights from Las Vegas to Ontario/LA
location_on
location_on
Flight Details
Departing from:
McCarran International Airport
Arriving at:
LA/Ontario International Airport
Average flight time:
1 hour 4 minutes
Distance:
197 miles
Route Information
153† Weekly flights
- 5‡ Nonstop flights per day Monday through Friday
- 4‡ Nonstop flights on Saturday
- 5‡ Nonstop flights on Sunday
† 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
The average flight time from Las Vegas to Ontario/LA is 1 hour 4 minutes.
There are 153 weekly flights from Las Vegas to Ontario/LA on Southwest Airlines.
Yes, Southwest flies nonstop from Las Vegas to Ontario/LA 5 times per day from Monday through Friday.
Yes, Southwest flies nonstop from Las Vegas to Ontario/LA 4 times per day on Saturdays and 5 times per day on Sundays.
To find the lowest fares by day and time to fly Las Vegas 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 Las Vegas 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.