The Superman: dive as you are about to fall off. This is pretty hard to pull off consistently, it is therefor a good idea to already start stearing to the left/right so you fly against the left/right puncher instead of falling into the nothing.
If you missed the superman, this is probably the easiest way to cross. The middle puncher always goes up right after the first puncher on the left. If you see that one up, best to wait a little or take a different route.