It’s best to compare prices online, so check ouｒ air travel guide. Some travel centers, such as the Japan Travel Centre (UK), offer cheap tickets for under 25s, so call your local travel agent specializing in Japan travel and ask for any deals.
If you are traveling far from Tokyo, such as from Kyoto, Osaka or Hiroshima, and don’t have a Japan Rail Pass then it’s best to take the bus. Prices are dramatically cheaper than the Shinkansen (bullet train).
Here are our recommendations:
Budget buses to/from most main cities, such as Kyoto or Osaka.
Reservation Website (click link at the top for English)
JR Bus Kanto
The biggest bus company, often with the best prices. As the website is only in Japanese, it’s best to reserve at a main JR (national rail) station such as Kyoto or Osaka or ask you hostel/hotel to reserve it.
Reservation Website (Japanese only)