Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights

LAS - ONT

Find cheap flights from Las Vegas to Ontario

1 adult
0 bags
Wed 29/5
Wed 5/6

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Ontario, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,219,010 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights from Las Vegas to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Las Vegas to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Las Vegas to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Las Vegas to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Las Vegas to Ontario is October, where tickets cost C$ 72 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 124 and C$ 112 respectively.

How far in advance should I book a flight from Las Vegas to Ontario?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Las Vegas to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Las Vegas to Ontario, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 days before departure.

How many flights are there between Las Vegas and Ontario per day?

Each day, there are between 5 and 11 nonstop flights that take off from Las Vegas and land in Ontario, with an average flight time of 1h 04m. The most common departure time is 10:00 a.m. and most flights take off in the morning. Each week, there are 68 flights. The most frequent day of departure is Sunday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Las Vegas and Ontario?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from Las Vegas to Ontario?

Early birds can take the earliest flight from Las Vegas at 6:00 am and will be landing in Ontario at 7:03 am.

What’s the latest departure time from Las Vegas to Ontario?

If you prefer to fly at night, the latest flight from Las Vegas to Ontario jets off at 10:20 pm and lands at 11:20 pm.

Good to know

Low season

January

High season

September
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (1% more expensive on average)

When to book flights from Las Vegas to Ontario

Are your dates flexible? Find out the best times to travel from Las Vegas to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Las Vegas to Ontario

  • Where can passengers sleep at ONT airport?

    The Sheraton Gateway Hotel at Ontario International Airport is the only hotel that is physically located inside the Ontario International Airport. It provides weary passengers with the opportunity to rejuvenate themselves by sleeping, swimming, showering, and working out. Day usage charges are available.

  • Are there any kid-friendly amenities at ONT airport?

    A nursing room, which can be found in Terminal 3 near the Duty-Free shop as well as at Gate B1, offers mothers a quiet place to breastfeed their children in private. Chairs, changing tables, and sinks may be found in each and every nursing room.

  • How can I get to downtown Ontario from ONT airport?

    The trip from Ontario International Airport to Union Station in the heart of downtown Toronto on the Union Pearson Express takes just 25min. It loads at Terminals 1 and 2.

  • How do I get from downtown Las Vegas to Harry Reid International Airport?

    Since downtown Las Vegas is just approximately 20min away by vehicle from the airport, you can simply use a cab or ridesharing service like Uber to get there. There is access to LAS through public transit, which will take around 30min.

  • Which airlines offer Wi-Fi service onboard planes from Las Vegas to Ontario?

    Delta, JetBlue, Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the Las Vegas to Ontario flight route.

  • Which aircraft models fly most regularly from Las Vegas to Ontario?

    The Airbus A320neo is the aircraft model that flies most regularly on the Las Vegas to Ontario flight route.

  • On which days can I fly direct from Las Vegas to Ontario?

    There are direct flights from Las Vegas to Ontario on a daily basis.

  • How does KAYAK find such low prices on flights from Las Vegas to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Las Vegas to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Las Vegas to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Las Vegas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Las Vegas to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Las Vegas with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Las Vegas to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Las Vegas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Las Vegas to Ontario

  • At the Harry Reid International Airport in Las Vegas (LAS), there are specific areas inside as well as outside of the terminals where passengers may take their dogs to discharge themselves. The airport offers post-security covered inside rooms as well as outdoor designated enclosures where travelers may take their animals to relieve themselves. These places are available to travelers who are traveling with pets or service animals. There are three locations within the airport that serve as checkpoints once passengers have cleared security: the A/B/C Gates of Terminal 1, the D Gates of Terminal 1, and the west end of Terminal 3 at Gate E11.
  • Are you intending to be in Ontario for a longer period of time and need to park your vehicle at the Harry Reid International Airport (LAS) while you are away? When it comes to parking over an extended period of time at LAS, you have two options: the covered parking garage or the uncovered parking lot.
  • Do you plan to arrive in Las Vegas ahead of time and are looking for things to keep yourself occupied before your flight departs? Attempt to unwind by visiting one of the lounges, such as the Club LAS. The Centurion Club is also available. These may be found at Terminal 1 on the ground floor and in the main terminal on the higher level, respectively.
  • Services for travelers with limited mobility are available at both Harry Reid International Airport and Ontario International Airport. Before or after your flight, any airport can help you with wheelchair rentals and getting through the terminal. If you want to use these amenities, please notify your airline in advance.
  • When you arrive at the Ontario Airport (ONT), proceed to the auto-rental facility to pick up your rental vehicle. There is no need to take a shuttle to a separate place since the vehicle rental agency is right there in the airport. The automobile rental service is available at any time.
See more tips

Prefer to fly non-stop from Las Vegas to Ontario?

Find which airlines fly direct from Harry Reid Intl to Ontario, which days they fly and book direct flights.

Nonstop departures

Las Vegas Harry Reid Intl to Ontario

Monday

Frontier,Southwest

Frontier,Southwest

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more nonstop flights

Nonstop returns

Ontario to Las Vegas Harry Reid Intl

Monday

Frontier,Southwest

Frontier,Southwest

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more nonstop flights
See more nonstop flights

Book cheap flights from Las Vegas to Ontario

One-way flight deals

directFrontier
1h 03mLAS-ONT
directSouthwest
1h 00mLAS-ONT

Search by stops

Search by airline

Las Vegas - Ontario Flights

Departure:

Las Vegas (LAS)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Las Vegas

Cabin classes:

C$ 78

Browse origins:

  • Flights » 
  • Las Vegas

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Ontario