http://grace.hyperdia.com/cgi-english/hyperWeb.cgithis is your best friend for looking at this.
Incorporates flights and shinkansens into it as well - prices vary from 7,000 yen up to 30,000yen and journey times from 12 hours to 6 hours
leaving 28th Feb
Route Departure time/Platform Arrival time/Platform Total sum Required time Distance Number of
transfers
The first OSAKA(23:00) 9 KAMISAKAI(09:52) ¥16320 10hours 52min 559.2 km 5times
The second OSAKA(22:22) 10 KAMISAKAI(11:12) ¥22460 12hours 50min 820.7 km 2times
The third OSAKA(21:47) 7 KAMISAKAI(12:17) ¥12370 14hours 30min 559.2 km 7times
The fourth OSAKA(21:00) 9 KAMISAKAI(13:44) ¥7670 16hours 44min 483.1 km 7times
The fifth OSAKA(21:00) 9 KAMISAKAI(17:23) ¥8760 20hours 23min 559.2 km 6times
leaving 29th
Route Departure time/Platform Arrival time/Platform Total sum Required time Distance Number of
transfers
The first OSAKA(07:45) 7 KAMISAKAI(13:44) ¥12200 5hours 59min 483.1 km 4times
The second OSAKA(07:16) 8 KAMISAKAI(13:44) ¥20440 6hours 28min 820.7 km 4times
The third OSAKA(06:39) 7 KAMISAKAI(13:44) ¥12200 7hours 05min 483.1 km 4times
The fourth OSAKA(06:13) 7 KAMISAKAI(13:44) ¥20440 7hours 31min 820.7 km 4times
The fifth OSAKA(07:10) 7 KAMISAKAI(14:49) ¥20800 7hours 39min 833.3 km 4times
sorry about the layout but you get the idea