Cheap flights from Chicago to San Francisco from ₹ 12,106

In general, May is the cheapest month to fly from Chicago to San Francisco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 27,238. If you aren’t able to travel to San Francisco during the month of May, then flying in July is also cheap. Prices for this month can be found on momondo for an average of ₹ 27,238.

The cheapest day to depart from Chicago to San Francisco is on a Saturday. Travellers who choose to depart for San Francisco on a Saturday will often find tickets for as low as ₹ 22,322. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around ₹ 40,366.

The cheapest time of day to fly to San Francisco is in the evening when flights can be purchased for as low as ₹ 36,560. Flights in the afternoon are often more expensive, with an average ticket price of ₹ 48,875.

Fly from Chicago O'Hare Intl to San Francisco for the best Chicago - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around ₹ 32,346 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Chicago for as low as ₹ 24,117 on momondo.

There are 2 cabin classes available to choose from on Chicago to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Chicago to San Francisco.

As of March 2026, prices for Chicago to San Francisco flights are approximately 31% more expensive when compared to flights at the same time last year.

Delta, Southwest, and United Airlines are the most popular carriers operating from Chicago to San Francisco

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to San Francisco from Chicago according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 3 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Chicago and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 175 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

As of March 2026, there are 40 flights per day flying from Chicago to San Francisco. The most common time of day flights depart is 19:00, with 45% of flights taking off in the evening.

As of March 2026, 280 flights take off from Chicago and land in San Francisco each week. The most common flight departure day for this route is Fri, with 26% of weekly flights taking off on this day.