V-Flyer

As said in a different forum I'm planning a trip to the US in November. I will need to book internal flights for LAS-SEA and SEA-SFO. I noticed look Virgin America look good and if they keep the $49 and $69 prices that they have so far it will be cheaper to book with them than say US airways. Does anyone know when November bookings will likely be available to book or any advice?

Thanks
Simon