Cheap Flights from LAS to ONT: When to Fly from Las Vegas to Ontario

 

The cheapest times to fly from LAS to ONT are

• August 6th to February 25th (except the weeks of November 19th, November 26th, and December 17th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LAS to ONT is late August to early September. Prices can be as high as $997 for Sunday flights during late July, or as low as $144 for Tuesday flights around late August to early September.

 

When to Fly to Ontario

Flying from Las Vegas, NV (LAS) to Ontario, CA (ONT) will usually cost between $149 to $621 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late August to early September with an average ticket price of $185. Due to high demand the most expensive time to fly is late July, with an average price of $530. Planning your trip to low-cost times can easily save you $344 on economy flights and even more on first-class flights. Generally, any price below $308 can be considered a good price for a round-trip LAS to ONT flight.

See below for a graph of average weekly prices for the LAS to ONT route. All prices are for round-trip tickets in USD.

Compared to other flights, the LAS to ONT flight is much cheaper than the average and costs much less than the average flight leaving from Las Vegas. The average price per mile (for a direct flight) is $0.97, which is above average.

 

Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $206 (44%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $230. Return trip prices are from the ONT to LAS flight, and often highlight the quality of our data in showing the same trend.

 

Nonstop Flights and Layovers

Travelers looking to fly from LAS to ONT can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 20 minutes may be realistic.

 

Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from LAS to ONT while comparing.

 

Flight Questions Answered

Still have questions about flying from LAS to ONT? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Alaska, American, Delta, Frontier, Southwest, United, and potentially more during busy seasons.

How far away is it from Ontario International Airport to McCarran International Airport?

The distance between the two airports is roughly 197 miles or 317 kilometers.

How long does it take to fly from LAS to ONT?

The real-world flight time for a nonstop LAS to ONT flight is about 1 hour 20 minutes.

How many flights go between Las Vegas, NV and Ontario, CA?

It depends on the day of the week and the date, but a typical day might have around 90 available flights from LAS to ONT.

 

Airport Location Info

 

 

Late and Early Flight Data

Flights from LAS to ONT tend to depart later than the average flight. According to our recently updated data, 31% of flights departed 5 or more minutes late, and 8% of flights left 5 or more minutes early. On average you can expect to leave ONT heading for LAS about 6 minutes late. This does not significantly impact arrival time, as the average landing time in Ontario, CA is about 3 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:

• Southwest: 6 minutes late
• Some airlines not reporting

 

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.