You may have seen some internet myths that claim President Obama has used Air Force One the most of any president, but actually, representing the United States in foreign countries is part of the president's job, and nearly every modern president has done a considerable amount of overseas travel. Further, even cross-country travel requires the use of Air Force One: the presidential plane is specially equipped, safe, secure, and able to provide the president and his staff with the space and the privacy needed to work while taking long trips. It appears that both President Bush and President Obama made about an equal number of international trips during their first term in office, and they seem to have used Air Force One the most, compared to President Clinton, who made far fewer trips than Mr. Bush and Mr. Obama did. I enclose a link to which countries these and other presidents visited in recent years.
Obama
obama, as he is in that more than he is in the White House.
bush
The call-sign of Air Force One is reserved for any Air Force vehicles currently holding the President of the United States.
The president
Any aircraft the president boards instantly assumes the callsign "Air-force One"
President's political party
Air Force One
The President does not fly Air Force One- he flies ON Air Force One
the president uses air force one because that air port is safe and secured for the president
Eleven Presidents have used different 'Air Force One's. This has been the Air Traffic designation of ANY aircraft the US President is flying in since 1953.
The plane used to transport the President is always called Air Force One, irrespective of which particular plane he's in. It is generally a Boeing 747-200 modified with special equipment such in-flight refueling. To be more technical, it is Air Force One if he is on an Air Force Plane, Marine One when he is on the helicopter, or Navy One if he is on a Navy plane. The "one" gives the aircraft priority in aviation hierarchy (the smaller the number, the higher the priority).