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

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The best prices from Ontario to Las Vegas are usually found in July or June, booked 22 days in advance, depart on a Sunday or Tuesday and return on a Friday

How to find the cheapest flight from
Ontario (ONT) to Las Vegas (LAS)

All the information you need to plan the best ONT to LAS flight in 2021: compare Ontario to Las Vegas flight prices with the expected peak season, weather and rainfall in Las Vegas.
ONT - LAS
Price
$99 - $196
LAS
Temperature
59 - 105.8 °F
LAS
Rainfall
0.1 - 0.9 inches

Popular in

October

High demand for flights, 24% potential price rise

Cheapest in

July

Best time to find cheap flights, 34% potential price drop

Round-trip from

$99

From Ontario to Las Vegas

One-way from

$31

One-way flight from Ontario to Las Vegas

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to Las Vegas?

Users have found that flying from Ontario to Las Vegas on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save up to 18% on this flight, we recommend booking at least 24 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Las Vegas from $262 1-2 weeks out and tickets from $304 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of August. Prices to Las Vegas from Ontario average $260. You can even find prices in August for less than $260, as users have found deals to Las Vegas from as low as $64. The month of December appears to be one of the more expensive times to travel to Las Vegas from Ontario. Flying in the targeted month can save you up to 25%.

When is the cheapest time to fly from Ontario to Las Vegas (ONT - LAS)?

It’s typically best to fly out from Ontario to Las Vegas at noon. Doing so could potentially save you 57% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Ontario to Las Vegas in June, July 2021

The best prices found for ONT to LAS flights for June, July
7 Jul - 10 Jul
$70pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
23 Jul - 24 Jul
$72pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
7 Jul - 10 Jul
$73pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

Ontario to Las Vegas 2021 flight deals

Cheap flights to Las Vegas from Ontario found for this year
17 Aug - 21 Aug
$61pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
17 Aug - 21 Aug
$64pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
7 Jul - 10 Jul
$70pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

Non-stop flights to Las Vegas from Ontario

Save time with Ontario to Las Vegas direct flight deals
17 Aug - 21 Aug
$61pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
17 Aug - 21 Aug
$64pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
7 Jul - 10 Jul
$70pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

Last minute flights from Ontario to Las Vegas

Late deals on round-trip flights to Las Vegas from Ontario, departing today and this week
27 Jun - 3 Jul
$73pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
26 Jun - 3 Jul
$76pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
30 Jun - 3 Jul
$80pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

One-way flights to Las Vegas from Ontario

The cheapest one-way flights from Ontario to Las Vegas
1:50 pm - 2:54 pm
Frontier
Nonstop
1h 04m
ONT - LAS
Frontier
$31
JustFly
7:07 am - 8:15 am
Frontier
Nonstop
1h 08m
ONT - LAS
Frontier
$34
JustFly
7:07 am - 8:15 am
Frontier
Nonstop
1h 08m
ONT - LAS
Frontier
$35
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Las Vegas</span> flights.

Flight FAQs

From Ontario to Las Vegas

Are flight prices decreasing from Ontario to Las Vegas due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Las Vegas for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Ontario to Las Vegas McCarran to control the spread of COVID-19?

Alaska Airlines is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Ontario to Las Vegas McCarran include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Ontario to Las Vegas McCarran have flexible cancellations due to COVID-19?

American Airlines, United Airlines, and Linear Air Taxi are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

What airports do I use to fly from Ontario to Las Vegas?

Las Vegas McCarran is the airport most travelers will use when flying to Las Vegas from Ontario. Booking flights from Ontario (ONT) to McCarran (LAS) should be relatively easy as there are 3 daily flights to Las Vegas from 11 different airlines. 1h 02m is how long a flight from Ontario to Las Vegas McCarran will take if you book a nonstop flight.

Can I find flights from Ontario to Las Vegas for under $100 on Cheapflights?

Yes, there are multiple flights from Ontario to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $61, but on average you can expect to pay $79.

Are there nonstop flights from Ontario to Las Vegas for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Ontario to Las Vegas under $100. A good price for a nonstop flight from Ontario to Las Vegas is less than $80.

Are there last-minute flights available from Ontario to Las Vegas for under $100?

There are currently 20+ open flights from Ontario to Las Vegas within the next 7 days for less than $100.

What days are nonstop flights available from Ontario to Las Vegas?

You can find nonstop flights on the following days: Monday, Tuesday, Wednesday, Friday, Saturday.

How popular is this flight route?

Within the past month, 3,129 users have taken a look at flights from Ontario to Las Vegas McCarran.

Does it rain more in Ontario or Las Vegas?

In Ontario, there will be same rainfall in Ontario compared to Las Vegas over the next 2 days.

Is Ontario weather warmer or cooler than Las Vegas?

Expect the weather to be around 106 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Las Vegas is generally hotter than in Ontario.

How long is the flight from Ontario to Las Vegas?

There are many flights that can get you from Ontario to Las Vegas in 1h 02m. Fly via Frontier to get the fastest option. Generally, flights for this route are nonstop.

What is the cheapest airline to fly from Ontario to Las Vegas round-trip?

Flying on Frontier is currently your cheapest option to Las Vegas, with prices starting at $61. This flight start at 59% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Ontario to Las Vegas one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $31.

Alternative routes for Ontario to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Las Vegas

Things to know before you go - useful duration and weather info for your trip from Ontario to Las Vegas.
Flight duration
1h 04m
Average temperature for June in Las Vegas
100.4 °F
Avg rainfall for June in Las Vegas
0.1 ″

Airports servicing Ontario

Airports servicing Las Vegas

Top 9 airlines flying from Ontario to Las Vegas

The chart below displays the airlines Cheapflights users traveling from Ontario to Las Vegas choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$28 $96 No cancel fee 62%
Spirit Airlines
$62 $126 No cancel fee 65%
Delta
$56 $151 No cancel fee N/A
JetBlue
$50 $183 No cancel fee 62%
United Airlines
$48 $200 No cancel fee 69%
Alaska Airlines
$43 $219 No cancel fee 75%
Southwest
$160 $321 No cancel fee 63%
American Airlines
$86 $335 No cancel fee 71%
Linear Air Taxi
$1,485 $4,314 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Linear Air Taxi. Please check directly on their website for additional information.

Hourly flight availability from Ontario to Las Vegas

See what time of day planes typically take off from Ontario towards Las Vegas.
Morning 6 AM to noon 52% of ONT to LAS departures
Afternoon Noon to 6 PM 32% of ONT to LAS departures
Early morning Midnight to 6 AM 8% of ONT to LAS departures
Evening 6 PM to midnight 8% of ONT to LAS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Ontario to Las Vegas
See how many times per day planes take to the skies headed from Ontario to Las Vegas.
Sunday
3 daily flights
Monday
4 daily flights
Tuesday
1 daily flight
Wednesday
0 flights
Thursday
4 daily flights
Friday
4 daily flights
Saturday
5 daily flights
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