Cheap Flights from Chicago to San Francisco International

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Flight deals from Chicago to San Francisco International

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Find the cheapest month to fly from Chicago to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to San Francisco International flights are currently cheapest in August.

Direct flights from Chicago to San Francisco International

Chicago to San Francisco International: Alternative routes

Compare routes from Chicago to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Chicago to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundAED 412
Cheapest month to flyMay
Average flight time4 hrs, 40 mins
Most popular airlineUnited
Average flights per week1,154

Finding cheap flights from Chicago to San Francisco International: Frequently asked questions

The best price we found for a round-trip flight from Chicago to San Francisco International is AED 412. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 40 minutes is the average flight time from Chicago to San Francisco International.
United, Air Canada and Air New Zealand fly direct from Chicago to San Francisco International.
There are 574 flights per week flying from Chicago to San Francisco International, as of April 2024.
The cheapest month to fly from Chicago to San Francisco International is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to San Francisco International Airport on Saturday, May 25, 2024.
Yes – the average flight time is 4 hours and 40 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Francisco International is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Francisco International is Frontier Airlines.

San Francisco International Airport is the primary airport serving San Francisco located just over 20 km outside of the city center. If you are flying from Chicago to San Francisco you can book flights with American Airlines, United Airlines and Virgin America out of Chicago O’Hare International Airport or travel with Southwest Airlines from Midway International Airport. Additionally, Frontier Airlines also operates flights on a seasonal basis from Chicago O’Hare International Airport.

* This information is correct as of August 2017

Airport Information - Arriving

San Francisco International Airport is comprised of four passenger terminals which are all within reasonable walking distance of one another so you can easily transfer between flights. Once you have touched down at the airport you can travel into the center of San Francisco using the Bay Area Rapid Transit network, although taxis and car rental are also available if you would prefer to reach your destination directly. The airport offers an extensive range of amenities such as duty-free and retail shopping, restaurants and cafes as well as other attractions such as an on-site museum, spa and yoga centers. You will also be able to enjoy free Wi-Fi during your stay so you can stay connected to family and friends.

Airport Information - Departing

Chicago O’Hare International Airport, often shortened to O’Hare Airport, is Chicago’s primary airport located less than 30 km from the city center. Getting to the airport from central Chicago is easy on the CTA Blue Line, with the trip taking around 40-50 minutes. You will find everything you could possibly need at the airport including a huge range of restaurants and eateries alongside many shops, while you can get online for free with complimentary Wi-Fi available for up to 30 minutes.

Midway International Airport is mostly a domestic airport housed within a single terminal split into three concourses. The airport offers all of the basic services and facilities you would expect such as fast food outlets and cafes as well as a few basic travel shops to pick up your essentials, while the airport also provides free Wi-Fi for travelers for up to 30 minutes. You can travel to the airport from central Chicago on the CTA Orange Line which takes around 25 minutes as the airport is only around 15 km away from the city.

What to Expect in San Francisco

In San Francisco the weather stays relatively warm for most of the year and over the summer enjoys temperatures in the low 20s. You can use our search engine to read reviews and find great hotels in San Francisco. As you will be flying on a domestic route, you will not need to obtain a passport but you will still need to show a valid passport in order to travel. Remember that San Francisco is two hours behind Chicago so don’t forget to wind back your clocks to local time once you land.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.