The distance between Earth and Jupiter is approximately 483 million miles, so it would take 43 minutes to travel from Earth to Jupiter at the speed of light; however, depending upon the vehicle and the route taken it varies from 13 months to six years. Also, the distance from Earth to Jupiter is forever changing; therefore, the time it takes to reach Jupiter from Earth is varied.
There have been many probes sent from Earth to Jupiter, as of 2014. It took these probes between three and five years to reach Jupiter. Some of the missions assigned to Jupiter include Cassini, Voyager I and II, Ulysses, and Pioneer 11. It would take 850 years traveling 6.5 miles per hour to reach Jupiter from Earth.