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 $582 round trip and CA $141 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $582 Roundtrip, found 6 days ago
CA $582
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $582 found 6 days ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $589 Roundtrip, found 6 days ago
CA $589
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $589 found 6 days ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $603 Roundtrip, found 6 days ago
CA $603
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $603 found 6 days ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $603 Roundtrip, found 6 days ago
CA $603
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $603 found 6 days ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $610 Roundtrip, found 6 days ago
CA $610
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $610 found 6 days ago
Mon, Feb 23 - Sun, Mar 1
LAS
Las Vegas
ONT
Ontario
CA $617 Roundtrip, found 1 day ago
CA $617
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Feb 23 from Las Vegas to Ontario, returning Sun, Mar 1, priced at CA $617 found 1 day ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $618 Roundtrip, found 6 days ago
CA $618
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $618 found 6 days ago
Mon, Feb 23 - Sun, Mar 1
LAS
Las Vegas
ONT
Ontario
CA $624 Roundtrip, found 1 day ago
CA $624
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Feb 23 from Las Vegas to Ontario, returning Sun, Mar 1, priced at CA $624 found 1 day ago
Mon, Feb 23 - Sun, Mar 1
LAS
Las Vegas
ONT
Ontario
CA $645 Roundtrip, found 1 day ago
CA $645
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Feb 23 from Las Vegas to Ontario, returning Sun, Mar 1, priced at CA $645 found 1 day ago
Wed, Feb 18 - Sat, Feb 21
LAS
Las Vegas
ONT
Ontario
CA $645 Roundtrip, found 6 days ago
CA $645
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Las Vegas to Ontario, returning Sat, Feb 21, priced at CA $645 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.