CA $157 Cheap Flights from Ontario (ONT) to Las Vegas (LAS)

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Intl. Airport (LAS)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards

Cheap flights from Ontario (ONT) to Las Vegas (LAS)

Prices were available within the past 7 days and start at CA $157 for one-way flights and CA $316 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
American Airlines
American Airlines
American Airlines
Alaska Airlines
Delta
Hawaiian Airlines
United

Find the cheapest month to fly from Ontario (ONT) to Las Vegas (LAS)

September is typically the cheapest month to fly

From CA $66 - CA $121 per traveller.

Graph displaying average flight prices per month

Flight from Ontario to Las Vegas (ONT - LAS) route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines
Roundtrip price
CA $316
Distance
314 km
Average flight time
1 hour 5 mins

Los Angeles to Las Vegas Flights

The easy way to book your flights from Ontario to Las Vegas 

With Expedia, it’s simple to find and book flights to Las Vegas from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Harry Reid Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to Las Vegas today, tomorrow, or this week.  

 

Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Harry Reid Intl., LAS 

Sort your search results by price to find great deals on your flight from Ontario to Las Vegas—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Las Vegas from Ontario currently is just CA $316 rising to CA $661.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Las Vegas  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Las Vegas from Ontario 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Las Vegas with Expedia today.

Frequently asked questions

How much is a flight from Ontario Airport to LAS?
Start packing your bags, because round-trip flights from ONT to Harry Reid Airport (formerly McCarran Airport) start from CA $316. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport)?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport) that have flexible change policies?
Plenty of airlines offer the option to reschedule your flight without charging a fee. All you pay is the cost difference between the two flights. When looking for Ontario Airport to Harry Reid Intl. Airport (LAS) flights, you'll see a "No change fees" box for you to tick.
How many hours is the flight from Ontario Airport to Harry Reid Airport (formerly McCarran Airport)?
It only takes around 1 hour and 7 minutes to travel from Ontario Airport to Harry Reid Airport (formerly McCarran Airport) — just enough time for a nap. You'll be landing in Las Vegas by the time you wake up.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport)?
It's just 320 kilometres between Ontario and Las Vegas. Chances are you'll spend more time getting to and from the airport than actually flying!
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport)?
Southwest Airlines (WN) is the preferred option for many travellers. It operates 147 flights between Los Angeles - Ontario Intl. Airport (ONT) and Harry Reid Airport (formerly McCarran Airport) each month. Another airline operating on this route is Frontier Airlines (F9). You'll have 69 flights every month to take your pick of.
Are ONT to Harry Reid Airport (formerly McCarran Airport) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Ontario Airport to Harry Reid Airport (formerly McCarran Airport) at the last minute could save you some serious cash. However, you might miss out on a flight altogether! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Explore a world of travel with Expedia

Ontario nearby Airports

Los Angeles

Orange County

*Available to Expedia members.