Virgin America announced these fare sales about a month ago. You can now fly from Dulles Airport, Washington DC to San Francisco for $219 roundtrip. Flight is about 5 hours, and you get to fly in the nightclub known as Virgin America Airlines.

Flight Details:

This is the standard price for this flight. So, you may need to book a few weeks in advance, but cost should stay at under $220 regardless of the day you fly.