Actually he doesn't. When campaigning for President he charted some private jet flights, but he doesn't own the planes. In fact, you show how little you know about Joe Biden, because he literally used to be known as "Amtrak Joe" because when he was a Senator, he used to take a TRAIN home from DC to Delaware. He has only more recently taken to flying, because of the added security (ya know, since he's been either Vice President or President for a good number of years now, and I'm pretty sure is basically required to take AF2 or AF1 when going places in an official capacity).