But how, in this day and age, is someone as high-profile as Travolta so hard to track down?
As most folks know, Travolta is a licensed pilot.
However, when E! News tried to track the tail numbers attached to two private jets Travolta has used or owns, both numbers were blocked by request of the owner, and blocked aircraft cannot be tracked by the general public.
"Congress enabled a program to allow people to opt out of having their flights tracked in real time over the Internet for broadcast to anyone anywhere in the world who has an Internet connection because Congress realized that there are valid security concerns when that happens," Dan Hubbard, Senior Vice President for the National Business Aviation Association told E! News.
Hubbard said it is his understanding that anyone requesting his or her tail number blocked can simply email the FAA showing they are owners of the aircraft and the valid security reason why they are requesting the block.
Security and law enforcement agencies such as FAA, police, DHS, traffic control TSA, however, can still see the aircraft.
"Everyone who needs to see it, can see it," Hubbard said.
Ah, that explains it.