Anecdote that happened to my dad:

My dad drove to Kansas with my mom and little sister; ~11 hour drive. Mom and little sis decided they would fly back instead, and my dad doesn't mind (he likes driving, and probably enjoyed the solitude).

Dad drops them off at the airport in Kansas, and starts driving back home. He made it home before them, and ended up picking them up from our local airport as well.

I guess my point (besides just a funny little story) is that sometimes flying vs driving is dependent on a lot of factors. At least in the US, from what I've experienced. It really all just depends on the situation and what you're trying to do. I have traveled a bunch within the US, both flying and driving (furthest drive being around 24 hrs straight, with a driving partner), and which one I choose is almost completely dependent on why I'm going and what I'm doing when I get there

Just my 2 cents though