By train
Kaga has 3 train stations- Iburihashi, Kagaonsen and Daishoji listed north to south. All are on the busy JR Hokuriku Main Line from Osaka to Naoetsu via Fukui, Kanazawa and Toyama. Kagaonsen is the primary station in the Kaga area with several normal and express trains every hour. Ordinary trains to Kanazawa from Kagaonsen take 53 minutes and cost ¥740.
The train schedules are listed here (http://www.hyperdia.com/)
By plane
The nearest airport to Kaga is the Komatsu Airport, located in Komatsu. The Komatsu airport receives flights through JAL and ANA, and even a few international flights. From the Komatsu airport it is easiest to take the train to Kaga.
Komatsu Bus (http://www.komatsubus.jp/) services leave for JR Komatsu station every 20-30 minutes 12 min, ¥260.