There are most likely no direct flights on the Las Vegas — Ontario route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Las Vegas to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
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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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the Las Vegas — Ontario route
The cost of a one-way flight from Las Vegas to Ontario ranges from $31 (June 2026) to $173 (January 2027). On average, the ticket price is about $46–$82.
Flight prices from Las Vegas to Ontario are steadily rising: from June 2026 to April 2027, ticket costs increased by 433%. The sooner you book, the better the deal.
The most significant price increase was from June 2026 to August 2026 — up 15%. The best time to fly is June 2026–July 2026, when the average price is $31. In January 2027–March 2027, tickets cost around $158.
Given the rising prices, it's best not to delay your purchase. Flying in June 2026–July 2026 can save you up to 80% compared to the most expensive months.
Price variation across months on this route is 74.2%. Your choice of departure month significantly affects the total flight cost.
Las Vegas — Ontario
06/13/2026
Departure
Direct flight
WN3845
starting at $285
Las Vegas — Ontario
06/10/2026
Departure
Direct flight
WN3155
starting at $357
Las Vegas — Ontario
06/30/2026
Departure
Direct flight
F91357
starting at $36
Las Vegas — Ontario
06/18/2026
Departure
Direct flight
WN2301
starting at $289
starting at $285
starting at $36
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 $36, 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 flight ticket from Las Vegas to Ontario according to data for the last 48 hours costs $36
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: June, July, September.
The fastest flights from Las Vegas to Ontario start from 1 hour 8 minutes in the air.
The following airlines operate direct flights on the route Las Vegas — Ontario: Southwest Airlines, Frontier Airlines
We couldn't find any special offers for flights from Las Vegas to Ontario
The cheapest one-way flight from Las Vegas to Ontario departs on 07/01/2026, is operated by Frontier Airlines and costs $36
The cheapest roundtrip flight from Las Vegas to Ontario departs on 06/19/2026, is operated by Frontier Airlines and costs $157
Fastest flight from Las Vegas to Ontario takes 1h 8m
There are direct flights on this route 4 days a week: Tu, We, Th, and Sa
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