Cheap Flights From Harry Reid Intl. (LAS) To Los Angeles - Ontario Intl. (ONT)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Las Vegas (LAS) to Ontario (ONT)

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were CA $409 round trip and CA $208 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Nov 24 - Tue, Nov 25
LAS
Las Vegas
ONT
Ontario
CA $409 Roundtrip, found 6 days ago
CA $409
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 24 from Las Vegas to Ontario, returning Tue, Nov 25, priced at CA $409 found 6 days ago
Mon, Nov 24 - Tue, Nov 25
LAS
Las Vegas
ONT
Ontario
CA $495 Roundtrip, found 6 days ago
CA $495
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 24 from Las Vegas to Ontario, returning Tue, Nov 25, priced at CA $495 found 6 days ago
Wed, Oct 15 - Thu, Nov 13
LAS
Las Vegas
ONT
Ontario
CA $559 Roundtrip, found 2 days ago
CA $559
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Las Vegas to Ontario, returning Thu, Nov 13, priced at CA $559 found 2 days ago
Wed, Oct 15 - Thu, Nov 13
LAS
Las Vegas
ONT
Ontario
CA $586 Roundtrip, found 2 days ago
CA $586
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Las Vegas to Ontario, returning Thu, Nov 13, priced at CA $586 found 2 days ago
Wed, Oct 15 - Thu, Nov 13
LAS
Las Vegas
ONT
Ontario
CA $629 Roundtrip, found 2 days ago
CA $629
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Las Vegas to Ontario, returning Thu, Nov 13, priced at CA $629 found 2 days ago
Mon, Nov 24 - Tue, Nov 25
LAS
Las Vegas
ONT
Ontario
CA $637 Roundtrip, found 6 days ago
CA $637
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 24 from Las Vegas to Ontario, returning Tue, Nov 25, priced at CA $637 found 6 days ago
Wed, Oct 15 - Thu, Nov 13
LAS
Las Vegas
ONT
Ontario
CA $663 Roundtrip, found 2 days ago
CA $663
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Las Vegas to Ontario, returning Thu, Nov 13, priced at CA $663 found 2 days ago
Mon, Nov 24 - Tue, Nov 25
LAS
Las Vegas
ONT
Ontario
CA $669 Roundtrip, found 6 days ago
CA $669
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 24 from Las Vegas to Ontario, returning Tue, Nov 25, priced at CA $669 found 6 days ago
Wed, Oct 15 - Thu, Oct 16
LAS
Las Vegas
ONT
Ontario
CA $680 Roundtrip, found 2 days ago
CA $680
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Las Vegas to Ontario, returning Thu, Oct 16, priced at CA $680 found 2 days ago
Mon, Nov 24 - Tue, Nov 25
LAS
Las Vegas
ONT
Ontario
CA $694 Roundtrip, found 6 days ago
CA $694
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 24 from Las Vegas to Ontario, returning Tue, Nov 25, priced at CA $694 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.

Popular Flight Routes from Las Vegas (LAS)

Travelers at LAS love to visit these top cities. Roam to the top destinations from Las Vegas (LAS) today with the cheap prices from Travelocity!

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario(ONT) today with the cheap prices from Travelocity!

*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.