SLC is it.
If you're spending a few days, what's an hour or two each way going to matter? I wouldn't limit myself to places within 30 minutes of a major airport. You do realize that there are shuttle services that service pretty much any resort area within reasonable driving distance of an airport, right?
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz