$26 Cheap Flights from Ontario to Las Vegas

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly from Los Angeles - Ontario Intl. to Harry Reid Intl.

Amazing ONT to LAS Flight Deals

The cheapest flights to Harry Reid Intl. found within the past 7 days were $48 round trip and $26 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for ONT to LAS

CarrierFlightDepart ONTArrive LASTue
F9218805:44 pm06:51 pmCheck Fare
0 Stops
F9218604:17 pm05:24 pm
Check FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Best Harry Reid Intl. Flight and Hotel Packages

Harry Reid Intl. flight + hotel packages - economy flights

Flamingo Las Vegas Hotel & Casino
Caesars Palace
Conrad Las Vegas at Resorts World
Trump International Hotel Las Vegas
The Mirage Hotel & Casino
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Frequently asked questions

Can I catch a flight from Ontario Airport to LAS right now?
It’s always prudent to know about any travel advice reports and quarantine requirements in place in your destination city. Make sure you visit our Covid-19 Travel Advisor for up-to-date information on booking a flight to McCarran Intl. Airport (LAS) from Ontario Airport.
Are there direct flights from Los Angeles - Ontario Intl. Airport (ONT) to LAS?
If you’d like to get from ONT to LAS as fast as possible, you’ll be glad to know multiple airlines offer direct flights. Choose your favorite seat with Southwest Airlines or Frontier Airlines.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to McCarran Intl. Airport (LAS), please visit our Customer Service Portal.
How long is the flight from Los Angeles - Ontario Intl. Airport (ONT) to McCarran Intl. Airport (LAS)?
If you were planning to drift into a deep sleep during your Ontario to Las Vegas trip, you may have to leave it till another time. The usual flight time between Los Angeles - Ontario Intl. Airport (ONT) and McCarran Airport is a mere 1 hour and 4 minutes — just enough to sit back and close your eyes for a short while.
What is the flight distance from ONT to McCarran Intl. Airport (LAS)?
With a mere 200 mi separating Los Angeles - Ontario Intl. Airport (ONT) and McCarran Airport, there’ll be little time between the fasten seat belt sign flicking off and the captain asking you to prepare for landing.
What airlines fly from ONT to McCarran Intl. Airport (LAS)?
There are a number of airlines with direct flights from Ontario Airport to LAS. Southwest Airlines (WN) is one of the most reliable, and operates approximately 108 flights each month. If you want more options, look up the fares on offer from Frontier Airlines (F9). This airline has 43 flights each month. Between the two, there’s no doubt you’ll find the flight to suit your needs.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, Spirit Airlines or Frontier Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.


Traveling From
Los Angeles - Ontario Intl.
Traveling To
Harry Reid Intl.
Shortest Flight Time
hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price

Route Info

Flight path for flights from LA/Ontario International Airport to McCarran International Airport.

198.00 miles

Discover our best flights from Ontario ONT to Las Vegas LAS. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 


Find our best return flights from Ontario ONT to Las Vegas LAS at the right price  

Airfares to Las Vegas LAS from Ontario ONT currently cost between $48 and $63. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 


Book one-way flights from Ontario ONT to Las Vegas LAS 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Ontario ONT to Las Vegas LAS on Travelocity starting at $26. Prices and availability subject to change. Additional terms may apply. 


Get to Las Vegas LAS from Ontario ONT quicker with direct flights. 

Get to Las Vegas faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LAS from ONT to take around hour(s) min(s).  


Find our cheapest airfares for flights from Ontario ONT to Las Vegas LAS

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LAS from ONT. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  


Get our best airfare deals for your flight from Ontario ONT to Las Vegas LAS today 

If you’re flexible about when you travel, June is usually the cheapest month to fly from Ontario ONT to Las Vegas LAS. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 


Book flexible airline tickets for flights to Las Vegas LAS from Ontario ONT 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LAS from ONT have this option.  


Travel with confidence when you book flights to Las Vegas LAS from Ontario ONT with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.