Cheap flights from Nevada to Los Angeles from $43

In general, November is the cheapest month to fly from Nevada to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $19. If you aren’t able to travel during the month of November, then book flights to Ontario from Nevada during March instead. Flights to Ontario in March, while not as cheap as those in November, still average around $28.

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $103. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Nevada to Ontario for around $170.

In the evening is the cheapest time of day to fly from Nevada to Ontario when you can find flight prices for as low as $104. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $140 on average. Flights to Ontario from Nevada in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Las Vegas Harry Reid Intl to Ontario for the best Nevada - Ontario flight prices

You are more likely to see cheaper flights to Ontario from Nevada when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $123 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Nevada for as low as $83 on momondo.

Southwest, Frontier, and United Airlines are the most popular carriers operating from Nevada to Ontario

Spirit Airlines, Frontier and Southwest are the top three most popular airlines that fly to Ontario from Nevada according to our data. Spirit Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 11 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of May 2026, there are 6 flights per day flying from Nevada to Ontario. The most common time of day flights depart is 6:00PM, with 44% of flights taking off in the evening.

47 flights are operational weekly from Nevada to Ontario as of May 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.