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

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

The cheapest flights to Harry Reid Intl. found within the past 7 days were CA $450 round trip and CA $256 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Mar 7 - Mon, Mar 9
ONT
Ontario
LAS
Las Vegas
CA $450 Roundtrip, found 6 days ago
CA $450
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Ontario to Las Vegas, returning Mon, Mar 9, priced at CA $450 found 6 days ago
Thu, Jan 22 - Mon, Jan 26
ONT
Ontario
LAS
Las Vegas
CA $470 Roundtrip, found 6 hours ago
CA $470
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to Las Vegas, returning Mon, Jan 26, priced at CA $470 found 6 hours ago
Thu, Jan 29 - Thu, Jan 29
ONT
Ontario
LAS
Las Vegas
CA $486 Roundtrip, found 1 day ago
CA $486
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jan 29 from Ontario to Las Vegas, returning Thu, Jan 29, priced at CA $486 found 1 day ago
Sat, Mar 7 - Mon, Mar 9
ONT
Ontario
LAS
Las Vegas
CA $493 Roundtrip, found 6 days ago
CA $493
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Ontario to Las Vegas, returning Mon, Mar 9, priced at CA $493 found 6 days ago
Sat, Mar 7 - Mon, Mar 9
ONT
Ontario
LAS
Las Vegas
CA $507 Roundtrip, found 6 days ago
CA $507
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Ontario to Las Vegas, returning Mon, Mar 9, priced at CA $507 found 6 days ago
Thu, Jan 22 - Mon, Jan 26
ONT
Ontario
LAS
Las Vegas
CA $507 Roundtrip, found 6 hours ago
CA $507
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to Las Vegas, returning Mon, Jan 26, priced at CA $507 found 6 hours ago
Sat, Mar 7 - Mon, Mar 9
ONT
Ontario
LAS
Las Vegas
CA $521 Roundtrip, found 6 days ago
CA $521
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Ontario to Las Vegas, returning Mon, Mar 9, priced at CA $521 found 6 days ago
Sat, Mar 7 - Mon, Mar 9
ONT
Ontario
LAS
Las Vegas
CA $528 Roundtrip, found 6 days ago
CA $528
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Ontario to Las Vegas, returning Mon, Mar 9, priced at CA $528 found 6 days ago
Thu, Jan 22 - Mon, Jan 26
ONT
Ontario
LAS
Las Vegas
CA $531 Roundtrip, found 6 hours ago
CA $531
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to Las Vegas, returning Mon, Jan 26, priced at CA $531 found 6 hours ago
Thu, Jan 22 - Mon, Jan 26
ONT
Ontario
LAS
Las Vegas
CA $531 Roundtrip, found 6 hours ago
CA $531
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ontario to Las Vegas, returning Mon, Jan 26, priced at CA $531 found 6 hours ago

Frequently asked questions

Are there direct flights from Los Angeles - Ontario Intl. Airport (ONT) to LAS?
If you'd like to get from ONT to LAS as fast as possible, you'll be glad to know multiple airlines offer direct flights. Choose your favorite seat with Southwest Airlines or Frontier Airlines.
What airlines fly from ONT to McCarran Intl. Airport (LAS)?
There are a number of airlines with direct flights from Ontario Airport to LAS. Southwest Airlines (WN) is one of the most reliable, and operates approximately 108 flights each month. If you want more options, look up the fares on offer from Frontier Airlines (F9). This airline has 43 flights each month. Between the two, there's no doubt you'll find the flight to suit your needs.
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.
*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.