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

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

All the information you need to plan the best LAS to ONT flight in 2022: compare Las Vegas to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
LAS - ONT
Price
$88 - $217
ONT
Temperature
53.6 - 78.8 °F
ONT
Rainfall
0.1 - 3.4 inches

Popular in

May

High demand for flights, 30% potential price rise

Cheapest in

April

Best time to find cheap flights, 42% potential price drop

Round-trip from

$88

From Las Vegas Harry Reid Intl to Ontario

One-way from

$17

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

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 Las Vegas to Ontario?

The best pricing can be found in the month of April. Prices to Ontario from Las Vegas average $86. You can even find prices in April for less than $86, as users have found deals to Ontario from as low as $43. The month of December appears to be one of the more expensive times to travel to Ontario from Las Vegas. Flying in the targeted month can save you up to 23%.

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

Saturday flights are found to be more expensive to fly from Las Vegas to Ontario. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

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

When flying from Las Vegas to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 29% versus a flight in the evening.

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

To save on the cost of your flight from Las Vegas to Ontario, book at least 17 days before your planned departure. Booking around this time can save you about 20% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $75 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $95.

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

The best prices found for LAS to ONT flights for May, June
7 Jun - 15 Jun
$40pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
1 Jun - 8 Jun
$41pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
10 Jun - 12 Jun
$43pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl

Las Vegas Harry Reid Intl to Ontario 2022 flight deals

Cheap flights to Ontario from Las Vegas found for this year
7 Jun - 15 Jun
$40pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
1 Jun - 8 Jun
$41pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
10 Jun - 12 Jun
$43pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl

Non-stop flights to Ontario from Las Vegas

Save time with Las Vegas to Ontario direct flight deals
7 Jun - 15 Jun
$40pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
10 Jun - 12 Jun
$43pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
16 Jun - 18 Jun
$44pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl

Last minute flights from Las Vegas to Ontario

Late deals on round-trip flights to Ontario from Las Vegas, departing today and this week
1 Jun - 1 Jun
$40pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
1 Jun - 8 Jun
$41pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
1 Jun - 1 Jun
$48pp
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
ONT
Ontario
ONT
Ontario
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl

One-way flights to Ontario from Las Vegas

The cheapest one-way flights from Las Vegas to Ontario
6:55 pm - 7:56 pm
Frontier
Nonstop
1h 01m
LAS - ONT
Frontier
$17
Flights by SU
3:38 pm - 4:41 pm
Frontier
Nonstop
1h 03m
LAS - ONT
Frontier
$19
Agoda.com
4:07 pm - 5:08 pm
Frontier
Nonstop
1h 01m
LAS - ONT
Frontier
$20
Tripmonster

Related info for your journey

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

Flight FAQs

From Las Vegas to Ontario

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

If you wish to fly to Ontario from Las Vegas, then you need to book flights from Las Vegas Harry Reid Intl to Ontario. There are 5 flights from Harry Reid Intl (LAS) to Ontario (ONT) per day to choose from. Flights to Ontario from Harry Reid Intl are available from 8 different airlines, which means you should have some options if you want to compare airfare deals. 1h 01m is how long a nonstop flight from Las Vegas to Ontario typically takes.

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

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

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

Yes, there are multiple flights from Las Vegas to Ontario for under $100. The cheapest flight booked recently is on Frontier for just $40, but on average you can expect to pay $57.

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

Cheapflights has at least 20 direct flights from Las Vegas to Ontario under $100. A good price for a nonstop flight from Las Vegas to Ontario is less than $56.

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

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

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

Nonstop flights can be found on the following days: Monday, Wednesday, Friday, Saturday.

How popular is this Las Vegas to Ontario flight route?

Within the past month, 44 users have taken a look at flights from Las Vegas Harry Reid Intl to Ontario.

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

On average 5 flights depart from Las Vegas to Ontario per day.
Morning (6am - Noon) - 60% of flight departures
Evening (6pm - Midnight) - 40% of flight departures

How long is the flight from Las Vegas to Ontario?

There are many flights that can get you from Las Vegas to Ontario in 1h 01m. Fly via Frontier to get the fastest option. The distance between Las Vegas and Ontario is about 198 mi. All flights are typically nonstop.

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

Cheapflights users have booked flights from Las Vegas to Ontario round-trip from $40. You may be able to fly from Las Vegas to Ontario for 73% less than the average price by searching for this airline.

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

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

What are the cheapest flights from Las Vegas to Ontario?

On average you can expect to pay $190 for a flight from Las Vegas to Ontario. The cheapest flight overall is $17 while the most popular route, (Las Vegas Harry Reid Intl - Ontario) is currently priced at $43.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

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

Information is based on travel restrictions for travel to Ontario within the United States

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

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.

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

Returning to Las Vegas Harry Reid Intl from Ontario

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.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Las Vegas to Ontario

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

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Las Vegas to Ontario.
Flight duration from LAS to ONT
1h 04m

Airports servicing Las Vegas

Airports servicing Ontario

Hourly flight availability from Las Vegas to Ontario

See what time of day planes typically take off from Las Vegas towards Ontario.
Evening 6 PM to midnight 30% of LAS to ONT departures
Early morning Midnight to 6 AM 27% of LAS to ONT departures
Afternoon Noon to 6 PM 26% of LAS to ONT departures
Morning 6 AM to noon 17% of LAS to ONT departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Las Vegas to Ontario
See how many times per day planes take to the skies headed from Las Vegas to Ontario.
Sunday
6 daily flights
Monday
6 daily flights
Tuesday
7 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
6 daily flights
Saturday
0 flights
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