Cheap flights from Sacramento to Los Angeles from $106

In general, October is the cheapest month to fly from Sacramento to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $210. If you aren’t able to travel during the month of October, then book flights to Ontario from Sacramento during September instead. Flights to Ontario in September, while not as cheap as those in October, still average around $245.

The cheapest day to depart on your flight to Ontario is on a Monday when prices can be found for as low as $158. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Sacramento to Ontario for around $227.

In the evening is the cheapest time of day to fly from Sacramento to Ontario when you can find flight prices for as low as $153. 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 $263 on average. Flights to Ontario from Sacramento in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Sacramento Intl to Ontario for the best Sacramento Intl - Ontario flight prices

You are more likely to see cheaper flights to Ontario from Sacramento when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $291 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Sacramento for as low as $194 on momondo.

There is only 1 cabin class available to choose from on Sacramento to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 9% on your flight if you consider stops on a Sacramento to Ontario flight.

As of June 2026, prices for Sacramento to Ontario flights are approximately 114% more expensive when compared to flights at the same time last year.

Frontier is the most popular carrier operating from Sacramento Intl to Ontario

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to Ontario from Sacramento according to our data. Frontier is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 10 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from Sacramento to Ontario as of June 2026. The most popular departure time for this route is 3:00PM, with 37% of flights per day taking off at noon.

29 flights are operational weekly from Sacramento to Ontario as of June 2026. The most popular departure day for this route is Mon, with 24% of flights per week taking off on this day.