Cheap flights from Illinois to San Francisco from $103

The month of October is, on average, the cheapest month to fly to Sacramento from Illinois, with most prices found around $415. If you are unable to visit Sacramento during the month of October, then departing from Illinois during the month August is also very affordable. Most momondo users find prices during this month for around $450.

The cheapest day to depart from Illinois to Sacramento is on a Saturday when prices can be found for as low as $486. Flights from Illinois to Sacramento on a Monday will generally be more expensive and average around $632. 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 in the evening. momondo users have found flights departing from Illinois to Sacramento in the evening for as low as $500. 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 $577. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Chicago O'Hare Intl to Sacramento Intl for the best Illinois - Sacramento Intl flight prices

You are more likely to see cheaper flights to Sacramento from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Sacramento for around $481 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sacramento from Illinois for as low as $386 on momondo.

There are 4 cabin classes available to choose from on Illinois to Sacramento flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Illinois to Sacramento Intl

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Sacramento from Illinois according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Sacramento. Keep in mind that there are 7 different airlines that fly to Sacramento on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 11 flights per day flying from Illinois to Sacramento. The most common time of day flights depart is 3:00PM, with 35% of flights taking off in the afternoon.

As of September 2026, there are 77 flights per week flying from Illinois to Sacramento. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.