The flight route from Chicago (CHI) to San Francisco (SFO) is popular among all sorts of travelers- both business passengers and those simply seeking the refuge of Californian weather- with between 17 and 26 flights daily. It will take you just under 5 hours to travel the 1850 miles across the country. Airlines offering a direct flight are: American, Virgin America, Southwest and United.
There are several airlines offering a low-cost air ticket option so that you can have more to spend on your trip. For the lowest price, book flight tickets as far in advance as possible, while trying to avoid weekends and popular vacation times. Comparing prices on a flight price comparison will also help you find the lowest price.
Once you have landed, getting around town is easy and, given that it's San Francisco, often stylish. A rail service is operated by BART in the form of express trains that go to the north, to downtown as well as East Bay. The railway station can be found near the International Terminal and can be reached by riding the AirTrain. Caltrain provides rail service between San Francisco and San Jose, with weekday commute-hour service to Gilroy. Buses, taxis and shuttles will also take passengers from the airport to various destinations in the region.