Cheap flights from Ontario to San Francisco from $90

The month of August is, on average, the cheapest month to fly to Sacramento from Ontario, with most prices found around $258. If you are unable to visit Sacramento during the month of August, then departing from Ontario during the month May is also very affordable. Most momondo users find prices during this month for around $263.

The cheapest day to depart from Ontario to Sacramento is on a Thursday when prices can be found for as low as $167. Flights from Ontario to Sacramento on a Wednesday will generally be more expensive and average around $210. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Sacramento is at noon. momondo users have found flights departing from Ontario to Sacramento at noon for as low as $156. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $213. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Sacramento from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Sacramento for around $308 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sacramento from Ontario for as low as $159 on momondo.

You could potentially save up to 16% on your flight if you consider stops on a Ontario to Sacramento flight.

As of May 2026, prices for Ontario to Sacramento flights are approximately 89% more expensive when compared to flights at the same time last year.

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

United Airlines, Frontier and Alaska Airlines are the top three most popular airlines that fly to Sacramento from Ontario according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Sacramento. Keep in mind that there are 11 different airlines that fly to Sacramento on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from Ontario to Sacramento as of May 2026. The most popular departure time for this route is 4:00PM, with 44% of flights per day taking off at noon.

As of May 2026, 33 flights take off from Ontario and land in Sacramento each week. The most common flight departure day for this route is Mon, with 21% of weekly flights taking off on this day.