We booked some tickets for Phantom of the Opera (Venetian). Because we are from abroad, we could only do this by the Will Call pickup system. The site quotes: Some may not be open until an hour prior to event time, while others may be open during regular business hours every day. Some buildings advise patrons to arrive very early to pick up tickets to avoid long lines.
Because our Vegas time is rather short, maybe some advice: can I pick up the tickets the day before or only one hour before show?
ps: we are not staying in Venetian