LA is the best start because it's generally cheaper to get to - there are many more direct flights to LA than there are to SF which keeps prices lower. At the moment with no particular sales on that difference might not be noticeable but once airlines start doing offers it is common to see LA from under £500 with SF nowhere near.
So if you are going to drive through LA anyway there is simply no credible reason to fly to SF instead.
Your route is the same as mine was (Though we also did San Diego). We went anti clockwise from LA as it means you drive down the Pacific Coast Highway which means all the view is on your side of the road and it's far easier to randomly stop for photos with zero notice![Stick Out Tongue :p :p](/styles/default/xenforo/vbSmilies/Normal/tongue.gif)
So if you are going to drive through LA anyway there is simply no credible reason to fly to SF instead.
Your route is the same as mine was (Though we also did San Diego). We went anti clockwise from LA as it means you drive down the Pacific Coast Highway which means all the view is on your side of the road and it's far easier to randomly stop for photos with zero notice
![Stick Out Tongue :p :p](/styles/default/xenforo/vbSmilies/Normal/tongue.gif)