There are most likely no direct flights on the Las Vegas — Ontario route
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A non-stop flight is the most convenient and comfortable way to fly from Las Vegas to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
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There are most likely no direct flights on the Las Vegas — Ontario route
Las Vegas — Ontario
07/23/2026
Departure
Direct flight
WN3845
starting at $373
Las Vegas — Ontario
07/24/2026
Departure
Direct flight
F91283
starting at $189
starting at $373
starting at $181
Flights from Las Vegas to Ontario are operated by several airlines — Southwest Airlines and Frontier Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $181, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
The cheapest one-way flight from Las Vegas to Ontario departs on 07/23/2026, is operated by Frontier Airlines and costs $181
There is no information about the cheapest roundtrip flight from Las Vegas to Ontario
Fastest flight from Las Vegas to Ontario takes 1h 3m
There are direct flights on this route 2 days a week: Th and Fr
The distance between Las Vegas and Ontario is 321km (199 miles). There are 5 direct flights from Las Vegas to Ontario. Las Vegas and Ontario are in the same time zone. Flights from Las Vegas begin at 7:40 AM. The latest flight from Las Vegas departs at 7:40 PM
The cheapest flight ticket from Las Vegas to Ontario according to data for the last 48 hours costs $181
Often the best time to buy tickets from Las Vegas to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Las Vegas to Ontario can be found flying in these months: September, October, August.
The fastest flights from Las Vegas to Ontario start from 1 hour 3 minutes in the air.
The following airlines operate direct flights on the route Las Vegas — Ontario: Southwest Airlines, Frontier Airlines
The cost of a one-way flight from Las Vegas to Ontario ranges from $60 (September 2026) to $156 (May 2027). On average, the ticket price is about $91–$144.
On the Las Vegas — Ontario route, prices first decline, hit a low, then start rising again. The middle of the period creates a price window — the best time to book.
Prices fall from July 2026 to September 2026 (6%), then rise from September 2026 to May 2027 (+157%). The best period is September 2026–October 2026 ($62), the most expensive is December 2026–May 2027 ($153).
The best time to buy is September 2026–October 2026, when prices are at their lowest. This can save you up to 59% compared to the expensive months (December 2026–May 2027).
Monthly price variation is 43.3%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.
We couldn't find any special offers for flights from Las Vegas to Ontario