Usually a breeze... just went through tonight around 5PM and was 5th in line. The most I've ever waited is +/- 10 minutes but, of course, anything is possible. Busy hours are 10AM-2PM. One thing to note if you're not checking bags is that the Precheck recently moved so you can be dropped off past all the airline desks. It's only a couple minute walk from the airline desks so not a huge deal but the real benefit is being able to drive past the mob of people being dropped off and pulling over in the "sweet spot" between people dropping and being picked up. Overall, OGG is kind of crappy airport as far as lounges, restaurants, etc. but is pretty good for getting through security most times.