I just booked my parents-in-law to visit us here in Sydney thru Cebu Pacific from October 11, 2014 to October 4, 2015. Yes. That is a week less of being 365 days or 52 weeks or 12 months or 1 year. If you will call an airline or try an airline online booking system now, and try to book or reserve a flight for a duration of 12 months or 1 year, you will most probably not be able to do it immediately. How I did the booking? From the time their tourist visa was granted last July 2014, one of the challenges is to find a flight booking that is cheap and can be booked for 1 year or close to that. A direct flight from Manila to Sydney will be a plus only but not required. With the advent of Cebu Pacific flights offering Manila-Sydney, all other airlines seem to have been eliminated from our options. Cebu Pacific became our priority and number 1 option. However, booking a desired flight is not that easy back then.