Menu

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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Ontario to Las Vegas are usually found in January or February, booked 16 days in advance, depart on a Sunday or Monday and return on a Saturday

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

ONT - LAS
Price
$155 - $334
LAS
Temperature
59 - 105.8 °F
LAS
Rainfall
0.1 - 0.9 inches

Popular in

May

High demand for flights, 37% potential price rise

Cheapest in

January

Best time to find cheap flights, 27% potential price drop

Round-trip from

$155

From Ontario to Las Vegas

One-way from

$132

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 10% on this flight, we recommend booking at least 56 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 $302 1-2 weeks out and tickets from $331 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 February. Prices to Las Vegas from Ontario average $296. You can even find prices in February for less than $296, as users have found deals to Las Vegas from as low as $140. The month of July 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 17%.

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 32% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Ontario to Las Vegas in October, November 2020

The best prices found for ONT to LAS flights for October, November
9 Nov - 10 Nov
$144pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario
2 Nov - 6 Nov
$181pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario
31 Oct - 7 Nov
$184pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
 
1 STOP
ONT
Ontario

Ontario to Las Vegas 2020 flight deals

Cheap flights to Las Vegas from Ontario found for this year
9 Nov - 10 Nov
$144pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario
7 Dec - 10 Dec
$164pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario
11 Dec - 13 Dec
$175pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario

Non-stop flights to Las Vegas from Ontario

Save time with Ontario to Las Vegas direct flight deals
28 Jan - 1 Feb
$87pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
26 Feb - 1 Mar
$137pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
19 Feb - 21 Feb
$157pp
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
2 Nov - 6 Nov
$181pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Multiple Airlines
 
1 STOP
ONT
Ontario
3 Nov - 9 Dec
$191pp
ONT
Ontario
American Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
American Airlines
   
2 STOPS
ONT
Ontario
2 Nov - 6 Nov
$231pp
ONT
Ontario
American Airlines
   
2 STOPS
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
American Airlines
 
1 STOP
ONT
Ontario

One-way flights to Las Vegas from Ontario

The cheapest one-way flights from Ontario to Las Vegas
7:30 am - 4:21 pm
Multiple Airlines
2 Stops
56h 51m
ONT - LAS
Multiple Airlines
$132
Kiwi.com
4:29 am - 12:45 pm
Frontier
1 Stop
8h 16m
ONT - LAS
Frontier
$154
Kiwi.com
1:00 am - 5:35 pm
Alaska Airlines
1 Stop
16h 35m
ONT - LAS
Alaska Airlines

Related info for your journey

Useful info, stats and facts about Ontario to Las Vegas 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, JetBlue, and Delta are some 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.

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 $87, but on average you can expect to pay $178.

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

Cheapflights has at least 11 direct flights from Ontario to Las Vegas under $100. A good price for a nonstop flight from Ontario to Las Vegas is less than $1,440.

Are there last-minute flights available from Ontario to Las Vegas for under $200?

There are currently 20+ open flights from Ontario to Las Vegas within the next 7 days for less than $200.

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

You can find nonstop flights on the following days: Sunday, Tuesday, Wednesday, Thursday, 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 greater rainfall in Ontario compared to Las Vegas over the next 5 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 08m. Fly via Frontier, American Airlines, or Major Airline to get the fastest option. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Ontario to Las Vegas round-trip?

Flying on Frontier is currently your cheapest option to Las Vegas, with prices starting at $87. Additional round-trip tickets that might be worth considering are offered by American Airlines and Major Airline, with the lowest prices starting at $176 and $196, respectively. These flights start at 58% 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 $62. American Airlines flights start at $88 while deals on United Airlines start at $117 one-way.

Alternative routes for Ontario to Las Vegas

Destination information for Las Vegas

Things to know before you go. Useful info for your trip from Ontario to Las Vegas
Flight duration
1h 06m
Average temperature for October in Las Vegas
82.4 °F
Avg rainfall for October in Las Vegas
0.3 ″

Airports servicing Ontario

Airports servicing Las Vegas

Hourly flight availability from Ontario to Las Vegas

Morning 6 AM to noon 66% of ONT to LAS departures
Afternoon Noon to 6 PM 33% of ONT to LAS departures
Early morning Midnight to 6 AM 1% of ONT to LAS departures
Evening 6 PM to midnight 0% of ONT to LAS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Ontario to Las Vegas
Sunday
3 daily flights
Monday
3 daily flights
Tuesday
3 daily flights
Wednesday
3 daily flights
Thursday
3 daily flights
Friday
3 daily flights
Saturday
3 daily flights
Home North America USA Nevada Las Vegas Cheap flights from Ontario to Las Vegas