I just read on Tripadvisor forum that someone took 4 hours to get through security - please tell me this isn't a normal occurrence. We're flying out of Mccarran Airport Sunday morning, do I really have to be there that early? I was thinking of being at the airport 2 hours prior to departure, it's what the airline suggested. Anyone fly out of that airport recently? Also, I thought that I was planning for a slow period, am I wrong? How are the crowds on the strip around this time? Thanks!