F-4 Phantom II
Currently, an F-4 Phantom II can be purchased for $3.95 million dollars, according to the manufacturer. It is one of the most difficult airplanes to obtain on the list because of its limited availability. It became a part of the United States Air Force’s fleet in 1960 and is still in limited service today, despite the fact that it has been officially retired from military duty. Supersonic fighter-bomber and jet interceptor with a long range and high speed, this aircraft has been described as a two-seater. In those days, the possibilities for aircraft engineering seemed to be expanding with every passing second, and it made its debut with a boom, just as it does now, with the Concorde. This was due to the fact that it could achieve speeds of more than Mach 2.2 and had a carrying capacity of more than 18,000 pounds, which caused the adversaries to become concerned. There’s a valid explanation behind this.

F-4 Phantom II