Find cheap flights to San Francisco from airports close to you.
If you are flexible it is best to fly in March and best to avoid January as prices are on average the highest.
Looking for a cheap ticket to San Francisco? Here you can search all major low-cost airlines for cheap flights to San Francisco International Airport (SFO).
This is a list of all airlines flying to and from San Francisco and how many flights they operate from San Francisco.
Not looking for flights to San Francisco? You can check out these other destinations in United States