Getting ready to book my plane ticket ( already booked a class seat )

See the class ends 3pm on Friday.  Trying to decide about a 4:30 flight that day or waiting until Saturday.

Any thoughts re time to get to airport ( I'll have a car ) or how many other folks may be staying over to make a get together Friday night to digest class feasible?  )

I know Ivan is going to be up for the class ( I mean, hey, Brazil is in the neighborhood so ...  )

Who else?