The highway bus is the convenient way to get to the sightseeing locations you can't afford to miss in Kyoto!
To get from Tokyo to Kyoto by Shinkansen (bullet train) will cost about \13,000. A return trip will cost around \25,000.
However, if you decide to use the bus you can travel for around \5,000.
Also as the bus takes up to 9 hours, it is possible to get some sleep and taking the night bus can also save you the cost of one night in a hotel.
There are bus stops located in popular sightseeing areas such as Shinjuku, Ikebukuro, and in the vicinity of Tokyo station, so you can choose your most convenient boarding location.