I can personally attest to this one. Except - I arrived 1.5 hours early and the security line was backed out the door, literally. The only line that was completely empty was the crew security line - and they weren't taking anyone who wasn't crew even though many people in line begged to go to because they were about to miss their flight (including me; the TSA agent there actually snoozed out). I missed my flight.Don't..
Arrive at the Airport 30 Minutes Before Your Flight
OK, maybe if you are a veteran you can pull this off. However, security lines in Vegas are legendarily long. Furthermore, once you check your bags and clear security, there is a good chance you are going to have to hop on the monorail to get to your gate.
allow yourself one and a half hours
While the Strip is only about five minutes from the airport, leave enough time to make your flight. Don't worry: There are plenty of Wheel of Fortune slots in the terminal if you happen to breeze through the security and monorail hurdles.