Man on third, windy day at the park, a pop up to the right side. The wind blows it from foul territory back into play where the second baseman makes a diving catch. The runner tags and scores. Sac fly or not?

Of course.

That's how I scored it, but you don't see many SAC flys to the infield.

I'm pretty sure it would be a SF even if it was a foul to the catcher at the backstop. How else can you score it?