The flight leaves at 7:30a.m. what time should I be at the airport? We have booked rooms at the Clarion but the shuttle doesn't start until 6, that sounds too late to me? I will be bringing my laptop so I can get our boarding passes online. Also, if I need preboarding for my ds and I, do I need a special boarding pass? Does BUF have curbside check in? Would we be better to forego the shuttle and get taxis to the airport?