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

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

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

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 International to Las Vegas

One-way from

$81

One-way flight from Ontario International 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 International to Las Vegas?

Users have found that flying from Ontario International 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 International to Las Vegas?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 24 days in advance, which can save you up to 18% on flights from Ontario International to Las Vegas compared to booking the week you need them. Waiting 24 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $262. For sooner than that we have options available in the next 3 days from $304.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Las Vegas. Flights to Las Vegas from Ontario International in August are about $260 on average during August, but can be found for as low as $64.

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

When flying from Ontario International to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 32% versus a flight in the morning.

Cheap flights from Ontario International to Las Vegas in January, February 2021

11 Feb - 15 Feb
$35pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
11 Feb - 15 Feb
$36pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
12 Feb - 15 Feb
$37pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

Ontario International to Las Vegas 2021 flight deals

11 Feb - 15 Feb
$35pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
11 Feb - 15 Feb
$36pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
12 Feb - 15 Feb
$37pp
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 International

11 Feb - 15 Feb
$35pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
11 Feb - 15 Feb
$36pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario
12 Feb - 15 Feb
$37pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
ONT
Ontario

Last minute flights from Ontario International to Las Vegas

5 Feb - 6 Feb
$99pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
 
1 STOP
ONT
Ontario
5 Feb - 7 Feb
$130pp
ONT
Ontario
Frontier
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
   
2 STOPS
ONT
Ontario
5 Feb - 7 Feb
$133pp
ONT
Ontario
Frontier
 
1 STOP
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
   
2 STOPS
ONT
Ontario

One-way flights to Las Vegas from Ontario International

4:43 am - 5:02 pm
Frontier
2 Stops
12h 19m
ONT - LAS
Frontier
$81
Gotogate
6:55 am - 3:40 pm
Alaska Airlines
1 Stop
8h 45m
ONT - LAS
Alaska Airlines
2:44 pm - 3:23 am
Multiple Airlines
3 Stops
36h 39m
ONT - LAS
Multiple Airlines
$117
Gotogate

Related info for your journey

Flight FAQs

From Ontario International 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 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 International to Las Vegas for under $100 on Cheapflights?

Yes, there are multiple flights from Ontario International to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $35, but on average you can expect to pay $70.

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

Cheapflights has at least 20 direct flights from Ontario International to Las Vegas under $100. A good price for a nonstop flight from Ontario International to Las Vegas is less than $433.

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

There are currently 20+ open flights from Ontario International 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: 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 same rainfall in Ontario compared to Las Vegas over the next 8 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 International to Las Vegas?

For as low as $65, Frontier can have you in Las Vegas from Ontario International in 1h 01m. Generally, flights for this route are nonstop.

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

Frontier, at $35, was found to be the cheapest airline from Ontario International to Las Vegas.. Frontier is priced at 76% lower than the current average price of a flight leaving 3 months from now.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $18. Users have also found prices from $77 and $92 on Frontier and United Airlines, respectively.

Alternative routes for Ontario International to Las Vegas

Destination information for Las Vegas

Flight duration
1h 01m
Average temperature for January in Las Vegas
59.0 °F
Avg rainfall for January in Las Vegas
0.6 ″

Airports servicing Ontario

Airports servicing Las Vegas

Top 9 airlines flying from Ontario International to Las Vegas

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 International to Las Vegas

Morning 6 AM to noon 50% of ONT to LAS departures
Afternoon Noon to 6 PM 50% of ONT to LAS departures
Early morning Midnight to 6 AM 0% 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 International to Las Vegas
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
2 daily flights
Wednesday
2 daily flights
Thursday
2 daily flights
Friday
2 daily flights
Saturday
0 flights
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