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Find cheap flights from Ontario to Las Vegas

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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Las Vegas, 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 Ontario to Las Vegas, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,983,279 times on KAYAK, and here is why:

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Flights from Ontario to Las Vegas - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Las Vegas, 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 Ontario to Las Vegas is January, where tickets cost C$ 124 on average. On the other hand, the most expensive months are December and May, where the average cost of tickets is C$ 167 and C$ 160 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Las Vegas, 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 Ontario to Las Vegas, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 71 days before departure.

Which airlines fly direct between Ontario and Las Vegas?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ontario to Las Vegas.
There are 2 airlines that fly direct from Ontario to Las Vegas. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best deal found costing C$ 59. On average, the best prices for this route can be found at Frontier.

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

Each day, there are between 6 and 13 nonstop flights that take off from Ontario and land in Las Vegas, with an average flight time of 1h 07m. The most common departure time is 5:00 p.m. and most flights take off in the afternoon. Each week, there are 72 flights. The most frequent day of departure is Sunday, when 18% of all weekly flights depart. The fewest flights depart on a Saturday.

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

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 Ontario to Las Vegas?

Early birds can take the earliest flight from Ontario at 5:35 am and will be landing in Las Vegas at 6:40 am.

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

If you prefer to fly at night, the latest flight from Ontario to Las Vegas jets off at 11:30 pm and lands at 12:44 am.

Good to know

Low season

January

High season

September
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.

When to book flights from Ontario to Las Vegas

Are your dates flexible? Find out the best times to travel from Ontario to Las Vegas 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 Ontario to Las Vegas

  • Is it possible to book direct flights from Ontario to Las Vegas?

    There are many direct flights between Ontario and Las Vegas that are offered each day and these are typically operated by Frontier Airlines. Quite a few flights require passengers to have a layover as well, and you will find that these are usually serviced by Alaska Airlines or American Airlines.

  • How can I travel from downtown Ontario to Ontario International Airport?

    An easy way to get to Ontario International Airport from the city center is by driving or taking a taxi, which will generally take around 10 to 15min depending on what traffic is like at the time. You can also take public transportation, such as bus line 61, which will take you between 15 and 20min on average.

  • What transportation options are there for going from Harry Reid International Airport to downtown Las Vegas?

    To head to downtown Las Vegas once you have landed at Harry Reid International Airport, you can always drive or take a taxi, which will normally take you 20 to 25min. Public transportation is also an option, and bus line CX will bring you to the city center in approximately 45 to 50min.

  • What services are available for passengers with reduced mobility?

    There are employees at Ontario International Airport that are ready to help passengers with limited mobility through security, to their gate, and while boarding the plane. Free wheelchairs are also available for anyone in need. At both Ontario International Airport and Harry Reid International Airport, there are also elevators and ramps, as well as public restrooms that are accessible for individuals with reduced mobility.

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

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

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

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

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

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

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

    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 Ontario to Las Vegas.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Ontario 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 Ontario to Las Vegas?

    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 Las Vegas with an airline and back to Ontario with another airline.

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

    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 Las Vegas from Ontario 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 Ontario to Las Vegas

  • Those that will be traveling with small children will want to keep in mind that Ontario International Airport (ONT) has two baby care rooms that can be found in terminals 2 and 4. These rooms are equipped with changing tables, outlets, comfortable seating, trash cans, running water, and doors that lock.
  • If you’re flying with a dog, you most likely will want to give them the opportunity to stretch their legs after your flight has landed at Harry Reid International Airport (LAS). Head to one of the designated outdoor pet relief areas that are located just outside terminals 1 and 3.
  • Travelers that have some time to kill before their flight departs from Ontario International Airport can always relax in the Escape Lounge. This lounge has multiple locations, found in terminals 2 and 4, and passengers of all airlines can purchase entry tickets.
  • To rent a car once you have landed at Harry Reid International Airport, head to the McCarran Rent-A-Car Center, which you can go to from the airport by taking one of the free blue and white shuttle buses. At this center, you will find offices for several companies, including Alamo, Budget, and Hertz.
  • While there are no hotels directly at Ontario International Airport, there are a few nearby lodging options if you happen to have a flight that departs early in the morning. For example, the Candlewood Suites Ontario Convention Center is around a 5min drive away and has a free airport shuttle for guests.
See more tips

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

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

Nonstop departures

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

Nonstop returns

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
See more nonstop flights

Top airline flying from Ontario to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.2
FrontierOverall score based on 4123 reviews
5.8Comfort
7.1Crew
5.2Food
4.9Entertainment
6.6Boarding
Airline reviews

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

2.0 MediocreWener, Apr. 2024SFO - DEN
Read more about Frontier reviews

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

They changed my flight and did not want to accommodate me or try to help me in any way. They do not care about their customers.

Book cheap flights from Ontario to Las Vegas

One-way flight deals

directFrontier
1h 13mONT-LAS
directSouthwest
1h 05mONT-LAS

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Ontario - Las Vegas Flights

Departure:

Ontario (ONT)United States

Destination:

Las Vegas (LAS)United States

Return flight deals:

Las Vegas - Ontario

Cabin classes:

C$ 148

Browse origins:

  • Flights » 
  • Ontario

Browse destinations:

  • Flights » 
  • Las Vegas