I just flew Delta from OGG - LAX and then on to PDX last night/this morning. Flight from OGG was full other than middle seats. OGG is a ghost town. No services open other than a Coke machine and a water bottle fill/fountain. In-flight was super minimal - a bag with a bottle of water some cookies and Cheez-its. So, bring your own food I guess is my point. 4-hour layover at LAX this morning was miserable waiting to get up to PDX. I imagine getting on to LAS might be similar.

I was on Maui for 2 months and watched flights closely in preparation for coming back to the mainland. All I can tell you is the schedule means nothing. Flights are getting cancelled regularly. Often within a week or so of the flight. The best way to get an idea of your options is to watch your favorite flight-tracker to see what is actually flying.