Cheap flights from Ontario to Las Vegas (ONT - BLD)
ONT — BLD
Aug 19 — Aug 261
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Las Vegas
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Las Vegas (BLD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.
Popular in | March |
|---|---|
Cheapest in | September |
Average price | $107 |
Best time to book a flight from Ontario to Las Vegas
Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Las Vegas
What is the cheapest month to book a flight from Ontario to Las Vegas?
Currently, November is the cheapest month in which you can book a flight from Ontario to Las Vegas (average of $127). Flying from Ontario to Las Vegas in December is currently the most expensive (average of $226). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ONT to BLD?
Find hourly flight availability from Ontario to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.
When flying from Ontario to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight at noon.