Los Angeles? I'm in LA but that's Louisiana.
I wish I could drive 90 minutes and have good skies... For astronomically good skies there are certain characteristics the sky should have: High / thin and dry. Down here we're low / thick and moist. Even west Texas at ~5k feet elevation is a huge win over us. For planetary observing (of which I do very little, being a deep sky guy) thick atmosphere can be steady and since they're relatively bright planets punch through it well enough. But faint fuzzies? Nope.