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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
$140
Southwest Airlines
• nonstop
• 1h 45m
Oct 30 – Nov 01
The cheapest round trip flight from Las Vegas to Ontario (LAS-ONT-LAS) is currently $140
Cheapest Direct Flight
$133
Southwest Airlines
• nonstop
• 1h 40m
Oct 30
The cheapest nonstop flight from Las Vegas to Ontario (LAS-ONT) is currently $133
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.
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 45m
9:15 AM - 10:20 AM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 51m
10:05 AM - 11:16 AM • nonstop
Las Vegas → Ontario
1h 49m
8:35 PM - 9:44 PM • nonstop
Frontier Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 48m
3:13 PM - 4:21 PM • nonstop
Las Vegas → Ontario
1h 49m
8:35 PM - 9:44 PM • nonstop
Frontier Airlines
Nov 19 - Nov 29, Economy
Las Vegas → Ontario
19h 10m
11:10 AM - 11:00 PM • 1 stop
Las Vegas → Ontario
1h 53m
7:20 PM - 8:33 PM • nonstop
Delta Airlines
Nov 19 - Nov 29, Economy
Las Vegas → Ontario
27h 10m
6:30 AM - 11:00 PM • 1 stop
Las Vegas → Ontario
1h 53m
7:20 PM - 8:33 PM • nonstop
Delta Airlines
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.
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 40m
10:55 PM - 11:55 PM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 40m
9:15 PM - 10:15 PM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 45m
9:15 AM - 10:20 AM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 45m
12:55 PM - 2:00 PM • nonstop
Las Vegas → Ontario
1h 45m
8:45 PM - 9:50 PM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 51m
10:05 AM - 11:16 AM • nonstop
Las Vegas → Ontario
1h 49m
8:35 PM - 9:44 PM • nonstop
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.
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 40m
10:55 PM - 11:55 PM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 40m
9:15 PM - 10:15 PM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 45m
9:15 AM - 10:20 AM • nonstop
Las Vegas → Ontario
1h 45m
5:35 AM - 6:40 AM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 45m
12:55 PM - 2:00 PM • nonstop
Las Vegas → Ontario
1h 45m
8:45 PM - 9:50 PM • nonstop
Southwest Airlines
Oct 30 - Nov 01, Economy
Las Vegas → Ontario
1h 51m
10:05 AM - 11:16 AM • nonstop
Las Vegas → Ontario
1h 49m
8:35 PM - 9:44 PM • nonstop
Frontier 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 6:00 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 DL : USD 405
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 10:55 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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