Cheap Flights From Harry Reid Intl. (LAS) To Ontario Intl. Airport (ONT)

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Cheapest Flights from Las Vegas (LAS) to Ontario Intl. Airport (ONT)

The cheapest flights to Ontario Intl. Airport found within the past 7 days were CA $904 round trip and CA $295 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $904 Roundtrip, found 6 days ago
CA $904
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $904 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $918 Roundtrip, found 6 days ago
CA $918
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $918 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $933 Roundtrip, found 6 days ago
CA $933
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $933 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $939 Roundtrip, found 6 days ago
CA $939
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $939 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $945 Roundtrip, found 6 days ago
CA $945
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $945 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $947 Roundtrip, found 6 days ago
CA $947
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $947 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $953 Roundtrip, found 6 days ago
CA $953
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $953 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $959 Roundtrip, found 6 days ago
CA $959
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $959 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $967 Roundtrip, found 6 days ago
CA $967
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $967 found 6 days ago
Thu, Jun 25 - Fri, Jul 10
LAS
Las Vegas
ONT
Ontario
CA $974 Roundtrip, found 6 days ago
CA $974
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jun 25 from Las Vegas to Ontario, returning Fri, Jul 10, priced at CA $974 found 6 days ago

Frequently asked questions

Are there direct flights from LAS to Los Angeles - Ontario Intl. Airport (ONT)?
Southwest Airlines and Frontier Airlines are a couple of the airlines that provide nonstop flights from McCarran Airport to Ontario Airport. If you want to get to where you're headed without a stopover, these might be just the ticket.
What airlines fly from McCarran Airport to Los Angeles - Ontario Intl. Airport (ONT)?
There are several airlines offering direct flights from McCarran Airport to Los Angeles - Ontario Intl. Airport (ONT). Southwest Airlines (WN) is reputable, operating 108 flights each month. Another attractive option is Frontier Airlines (F9), which has 47 flights each month. The more airlines you weigh up, the more likely you are to pick up a terrific deal.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.