San Francisco is a popular vacation destination and has visitors, festivals, and events year-round. The cheapest flights to San Francisco are normally found between November and March, so if you book at least two months before your desired dates you should find the best prices for your flight tickets. You may also compare the flight deals on Low Tickets. Flight costs frequently fluctuate, and your rate is determined by your trip date, the availability of a seat, and the time you book.
