Cheap flights from Ontario to Las Vegas
From 93 USD — compare hundreds of airlines
About this route
Compare flights from Ontario to Las Vegas, a about 321 km route (around 0h 54m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Southwest Airlines operate this route.
Prices by date
Airlines on this route
FAQ
What's the cheapest month to fly Ontario to Las Vegas?
It's usually 2026-07, from 178 USD. Use the price calendar to compare other dates.
How long is the flight from Ontario to Las Vegas?
A nonstop flight takes about 0h 54m and covers around 321 km. Connecting itineraries take longer.
Are there direct flights from Ontario to Las Vegas?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Ontario to Las Vegas?
Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Ontario–Las Vegas flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.