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 Harry Reid Intl are usually found in July or June, booked 22 days in advance, depart on a Wednesday or Monday 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 2022: 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
48.2 - 93.2 °F
LAS
Rainfall
0.1 - 0.8 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 Harry Reid Intl

One-way from

$13

One-way flight from Ontario to Las Vegas Harry Reid Intl

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

Our data shows that August tends to be the cheapest month to fly to Las Vegas from Ontario. Users have commonly found prices around $93 for the month, but tickets can be as low as $37. Due to multiple factors, prepare for potentially higher prices in December.

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

A simple way to save on the total cost of your ticket is to fly from Ontario to Las Vegas in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the afternoon.

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

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Users have found that booking a flight from Ontario to Las Vegas at least 33 days early can save you up to 19% on average compared to booking a flight this week. If booking 33 days before your flight isn’t an option for you, users have found flights from Ontario to Las Vegas for as little as $91 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $113 for flights departing within the next 3 days.

Cheap flights from Ontario to Las Vegas in May, June 2022

The best prices found for ONT to LAS flights for May, June
21 May - 15 Jun
$39pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 25 May
$40pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 15 Jun
$41pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario

Ontario to Las Vegas 2022 flight deals

Cheap flights to Las Vegas from Ontario found for this year
21 May - 15 Jun
$39pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 25 May
$40pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 15 Jun
$41pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario

Non-stop flights to Las Vegas from Ontario

Save time with Ontario to Las Vegas direct flight deals
25 May - 26 May
$40pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
24 May - 25 May
$41pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
5 Jun - 7 Jun
$42pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
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
21 May - 15 Jun
$39pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 25 May
$40pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
22 May - 15 Jun
$41pp
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario

One-way flights to Harry Reid Intl from Ontario

The cheapest one-way flights from Ontario to Las Vegas
6:09 pm - 7:19 pm
Frontier
Nonstop
1h 10m
ONT - LAS
Frontier
5:43 pm - 6:48 pm
Frontier
Nonstop
1h 05m
ONT - LAS
Frontier
$17
Flights by SU
5:43 pm - 6:48 pm
Frontier
Nonstop
1h 05m
ONT - LAS
Frontier
$19
Agoda.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

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

Las Vegas Harry Reid Intl is the airport most travelers will use when flying to Las Vegas from Ontario. Booking flights from Ontario (ONT) to Harry Reid Intl (LAS) should be relatively easy as there are 6 daily flights to Las Vegas from 14 different airlines. 1h 03m is how long a flight from Ontario to Las Vegas Harry Reid Intl will take if you book a nonstop flight.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Frontier, Spirit Airlines, and American Airlines flying from Ontario to Las Vegas Harry Reid Intl have implemented new flexible cancellation policies.

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 $40, but on average you can expect to pay $58.

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 $57.

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?

Nonstop flights are available for this route on the following days: Sunday, Saturday.

How popular is this Ontario to Las Vegas flight route?

The Ontario to Las Vegas Harry Reid Intl flight path was viewed by 165 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Ontario to Las Vegas on average per day?

2 flight departures from Ontario to Las Vegas per day on average.
Morning (6am - Noon) - 50% of flight departures
Evening (6pm - Midnight) - 50% of flight departures

How long is the flight from Ontario to Las Vegas?

Frontier can get you from Ontario to Las Vegas in just under 1h 06m. Your travel time will be generally consistent. Ontario and Las Vegas are separated by a distance of 198 mi. All flights are typically nonstop.

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

Currently priced at $40, Frontier will fly you from Ontario to Las Vegas and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Users have found that Frontier is 73% cheaper than the other options available to this destination.

What are the cheapest flights from Ontario to Las Vegas?

Looking for the cheapest flight from Ontario to Las Vegas? While on average our users pay $431, our data indicates the cheapest price to be $17. The most popular route (Ontario - Las Vegas Harry Reid Intl), is priced around $40.

What are the most popular airlines that fly from Ontario to Las Vegas?

Consider American Airlines, Alaska Airlines or JetBlue when booking your flight. These represent the most popular airlines when flying from Ontario to Las Vegas.

COVID Restrictions

View COVID Travel Restrictions for Las Vegas, NV

Do I need a COVID test to fly to Las Vegas from Ontario?

Information is based on travel restrictions for travel to Las Vegas Harry Reid Intl within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Las Vegas Harry Reid Intl.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Las Vegas Harry Reid Intl.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Las Vegas Harry Reid Intl.

Do I need a test to fly back to Ontario from Las Vegas?

Returning to Ontario from Las Vegas Harry Reid Intl

COVID-19 testing requirements
Visitors from Las Vegas Harry Reid Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from Las Vegas Harry Reid Intl are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Las Vegas, NV

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 from ONT to LAS
1h 04m
Average temperature for May in Las Vegas
91.4 °F
Avg rainfall for May in Las Vegas
0.1 ″

Airports servicing Ontario

Airports servicing Las Vegas

Top 9 airlines flying from Ontario to Las Vegas Harry Reid Intl

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
Juneyao Airlines
$12 $17 No cancel fee 66%

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

Frontier
$35 $93 No cancel fee 62%
JetBlue
$43 $98 No cancel fee 62%
Spirit Airlines
$45 $101 No cancel fee 65%
Tunisair
$51 $95 No cancel fee 36%

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

United Airlines
$73 $148 No cancel fee 69%
Allegiant Air
$78 $108 No cancel fee 88%
American Airlines
$83 $308 No cancel fee 71%
Delta
$103 $143 No cancel fee N/A

Hourly flight availability from Ontario to Las Vegas

See what time of day planes typically take off from Ontario towards Las Vegas.
Afternoon Noon to 6 PM 31% of ONT to LAS departures
Evening 6 PM to midnight 31% of ONT to LAS departures
Morning 6 AM to noon 26% of ONT to LAS departures
Early morning Midnight to 6 AM 12% 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
6 daily flights
Monday
6 daily flights
Tuesday
7 daily flights
Wednesday
7 daily flights
Thursday
7 daily flights
Friday
8 daily flights
Saturday
2 daily flights
Home North America USA Nevada Las Vegas Cheap flights from Ontario to Las Vegas