Also, the scene where he's first in the suit and flying means he didn't fly before, right? So he literally was travelling the old fashioned way around the world. He could jump, but flying wasn't an option. Or at least that's how I interpretted it?
I wonder if this goes back to the 1978 film with Christopher Reeve, where Superman didn't fly until after he made it to the Fortress of Solitude and got tutored by Jor-El. It seems to be a theme - maybe flying is so inhuman, so not-normal, that Clark has to get some sort of stimulus from his alien father before he can do it.
