$228 - Round Trip Flight to San Francisco on Virgin America

Cheap Flight to San Francisco: I love Virgin America, especially when I can fly to San Francisco round trip on one of their brand new planes. I found single way flights from JFK to SFO (the main San Francisco Airport) for $114 on pretty much any day of the week, though you may need to book your flight at least a week in advance.

Book the flight online on their website.