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Uncover the best deals on Las Vegas to Ontario flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest LAS - ONT Flights
Useful information for finding best airline tickets from McCarran International to Ontario International on your next trip.
Cheapest Round Trip Flight
$174
Southwest Airlines
• nonstop
• 1h 45m
Jul 28 – Jul 31
The cheapest round trip flight from Las Vegas to Ontario (LAS-ONT-LAS) is currently $174
Cheapest One way Flight
$345
Southwest Airlines
• nonstop
• 1h 45m
Jul 22
The cheapest one way flight from Las Vegas to Ontario (LAS-ONT) is currently $345
Cheapest Direct Flight
$174
Southwest Airlines
• nonstop
• 1h 45m
Jul 28
The cheapest nonstop flight from Las Vegas to Ontario (LAS-ONT) is currently $174
Fastest Flight
1h 40m
The fastest nonstop flight from Las Vegas to Ontario (LAS-ONT) takes 1h 40m
Top Airlines Flying from Las Vegas to Ontario
Latest Flight Deals from Las Vegas (LAS) to Ontario (ONT)
Compare and book low fare round-trip air tickets from Las Vegas to Ontario. Ideal for travelers with confirmed return itineraries.
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
9:45 PM - 10:50 PM • nonstop
Las Vegas → Ontario
1h 50m
9:35 AM - 10:45 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
10:25 AM - 11:30 AM • nonstop
Las Vegas → Ontario
1h 55m
5:20 AM - 6:35 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
8:00 AM - 9:05 AM • nonstop
Las Vegas → Ontario
1h 55m
5:00 PM - 6:15 PM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
2:25 PM - 3:30 PM • nonstop
Las Vegas → Ontario
1h 50m
9:35 AM - 10:45 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 40m
7:20 PM - 8:20 PM • nonstop
Las Vegas → Ontario
1h 55m
8:20 PM - 9:35 PM • nonstop
Southwest Airlines
Explore competitive one-way airfare options for LAS - ONT flights. Best suited for flexible or open-ended travel plans.
Flying to Ontario soon? We've surfaced some of the most affordable last-minute flights from Las Vegas to Ontario, ideal for urgent plans or spontaneous trips.
Jul 20 - Jul 27, Economy
Las Vegas → Ontario
1h 49m
2:45 PM - 3:54 PM • nonstop
Las Vegas → Ontario
1h 51m
3:40 PM - 4:51 PM • nonstop
Frontier Airlines
Jul 20 - Jul 27, Economy
Las Vegas → Ontario
1h 43m
7:00 AM - 8:03 AM • nonstop
Las Vegas → Ontario
1h 51m
3:40 PM - 4:51 PM • nonstop
Frontier Airlines
Jul 20 - Jul 27, Economy
Las Vegas → Ontario
1h 49m
2:45 PM - 3:54 PM • nonstop
Las Vegas → Ontario
6h 52m
8:58 AM - 1:10 PM • 1 stop
Frontier Airlines
Jul 20 - Jul 27, Economy
Las Vegas → Ontario
1h 43m
7:00 AM - 8:03 AM • nonstop
Las Vegas → Ontario
6h 52m
8:58 AM - 1:10 PM • 1 stop
Frontier Airlines
Jul 16 - Jul 21, Economy
Las Vegas → Ontario
12h 18m
12:59 AM - 8:37 AM • 1 stop
Las Vegas → Ontario
15h 25m
8:58 AM - 6:23 PM • 1 stop
Frontier Airlines
Looking for the fastest way to Ontario? These direct flight options from LAS to ONT offer both convenience and value—no layovers, just straight to your destination.
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
9:45 PM - 10:50 PM • nonstop
Las Vegas → Ontario
1h 50m
9:35 AM - 10:45 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
10:25 AM - 11:30 AM • nonstop
Las Vegas → Ontario
1h 55m
5:20 AM - 6:35 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
8:00 AM - 9:05 AM • nonstop
Las Vegas → Ontario
1h 55m
5:00 PM - 6:15 PM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 45m
2:25 PM - 3:30 PM • nonstop
Las Vegas → Ontario
1h 50m
9:35 AM - 10:45 AM • nonstop
Southwest Airlines
Jul 28 - Jul 31, Economy
Las Vegas → Ontario
1h 40m
7:20 PM - 8:20 PM • nonstop
Las Vegas → Ontario
1h 55m
8:20 PM - 9:35 PM • nonstop
Southwest Airlines
FAQs on Las Vegas to Ontario Flights
What are the airports in Las Vegas?
LAS
What’s the most popular airline flying from LAS to ONT?
The most popular airline flying from Las Vegas to Ontario are
Can I fly from LAS to ONT non-stop?
Yes, you can fly LAS to ONT non-stop on
Which airlines fly nonstop between Las Vegas and Ontario?
The non-stop flights between Las Vegas and Ontario are .
What’s the earliest departure time from LAS to ONT Airport?
The earliest flight leaves LAS at 12:59 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Las Vegas to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from LAS to ONT?
Read the fare rules of the Las Vegas to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Las Vegas and Ontario?
operate flights between Las Vegas and Ontario
How long does a flight from Las Vegas to Ontario take?
It takes approximately 1 hour to fly non-stop from LAS to ONT, which is 196.8 miles by air.
Which airlines provide the cheapest flights from Las Vegas (LAS) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from LAS were found on WN : USD 345
Do I need a passport to fly between LAS and ONT?
No
What’s the latest departure time from LAS to ONT ?
The last flight leaves LAS at 9:45 pm
Las Vegas (LAS) to Ontario (ONT): Airport Information
| Origin Airport | McCarran International , Las Vegas, US |
| Destination Airport | Ontario International , Ontario, US |
| Distance | 197 miles |
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