With today's technology, travel time for an unmanned probe or unmanned small spacecraft is about 9 years. If you are talking about a ship that transports humans, we don't know.
502 miles per hour
Because it is further out, it has a larger distance to travel than Earth.
Unfortunately, there is not a simple answer. The distance between Earth and Pluto is changing all the time. Also, spacecraft follow complicated trajectories to reach their targets most efficiently, using gravitational fields.
248.09 Earth years for Pluto to orbit the Sun
The time it takes Pluto to revolve around the sun is 247.9 Earth years. Pluto's rotation takes 6.39 Earth days.
As of 2017, the answer is no. We do not have the technology to send humans to Pluto. We don't even have the technology to travel beyond Earth's orbit.
9 years
At its nearest it is 245 minutes and its farthest it is 409 minutes of light travel time away. The farthest Pluto gets from Earth gets from us is about 4,650,000,000 miles.
yes
12 years
Pluto takes about 247 (earth) years for one revolution around the sun. Yes, you are quite wrong. LOL
This refers to the time it takes Pluto - or the Earth - to go once around the Sun. Pluto is quite a bit farther from the Sun, therefore has to travel a longer path. It also moves slower around the Sun, precisely because it is farther away (for more details, read about Kepler's Third Law).