Cheap flights from Chicago to San Francisco from ₹ 15,248

In general, September 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 ₹ 32,190. If you aren’t able to travel to San Francisco during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of ₹ 33,131.

The cheapest day to depart from Chicago to San Francisco is on a Tuesday. Travellers who choose to depart for San Francisco on a Tuesday will often find tickets for as low as ₹ 36,645. The most expensive day to fly to San Francisco is Saturday, with ticket prices averaging around ₹ 53,261.

The cheapest time of day to fly to San Francisco is in the evening when flights can be purchased for as low as ₹ 36,421. Flights in the afternoon are often more expensive, with an average ticket price of ₹ 52,625.

Fly from Chicago Midway 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 ₹ 37,359 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 ₹ 30,590 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.

You could potentially save up to 19% on your flight if you consider stops on a Chicago to San Francisco flight.

As of June 2026, prices for Chicago to San Francisco flights are approximately 18% more expensive when compared to flights at the same time last year.

United Airlines, Delta, and Alaska 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 43% 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 24% 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 176 minutes.

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

Saturday 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 21% of their flights experiencing any sort of delay.

As of June 2026, there are 70 flights per day flying from Chicago to San Francisco. The most common time of day flights depart is 15:00, with 35% of flights taking off in the afternoon.

As of June 2026, 491 flights take off from Chicago and land in San Francisco each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.