what year did cassinni visit saturn
Voyage 1!
Four probes have been to Saturn - Pioneer 11, Voyager 1 and 2, and Cassini.
Galileo was the first spacecraft to visit Jupiter.
Strictly speaking, Saturn doesn't have a surface that can be landed on, so there have been no spacecraft landings on Saturn. Pioneer 11 and Voyagers 1 and 2 have done flybys of Saturn.
No spacecraft has landed on Saturn, it has no ground upon which to land.
The south side of Saturn
Saturn
No, nobody has travelled to Saturn. However, spacecraft have visited it.
No voyager 2 or two was the only spacecraft to visit Neptune.
The only space probe to visit Pluto was the New Horizons spacecraft. It took 9 years to get there.
Cassini
Saturn was the destination