Cheap flights from Ontario to San Francisco from $70

The month of May is, on average, the cheapest month to fly to Sacramento from Ontario, with most prices found around $243. If you are unable to visit Sacramento during the month of May, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $259.

The cheapest day to depart from Ontario to Sacramento is on a Thursday when prices can be found for as low as $168. Flights from Ontario to Sacramento on a Tuesday will generally be more expensive and average around $195. 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 $149. 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 afternoon because they tend to be around $197. 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 $292 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 $208 on momondo.

There is only 1 cabin class available to choose from on Ontario to Sacramento Intl 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 19% on your flight if you consider stops on a Ontario to Sacramento flight.

As of February 2026, prices for Ontario to Sacramento flights are approximately 45% more expensive when compared to flights at the same time last year.

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

United Airlines, Frontier and Southwest 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 31% of people opting to fly with this airline when traveling to Sacramento. Keep in mind that there are 10 different airlines that fly to Sacramento on a routine basis, so you have a few additional options to choose from.

3 flights are operational daily from Ontario to Sacramento as of February 2026. The most popular departure time for this route is 6:00AM, with 47% of flights per day taking off at noon.

As of February 2026, 23 flights take off from Ontario and land in Sacramento each week. The most common flight departure day for this route is Mon, with 26% of weekly flights taking off on this day.