From Edinburgh Airport
Follow signs for M8/M9 to Stirling. Exit 10 is the A84 for Callander. You can also download or print the below PDF with map and directions.
From Oban, Fort William, and the West
Follow the A84 east to Callander
From Inverness, Perth, and the North
Follow M9 south towards Stirling
From Glasgow Airport
There are several ways from Glasgow airport (and Prestwick) to Callander.
The motorway is the easiest route, depending upon the time of day and traffic. Just follow the motorway signs for Stirling.
Here is the map which takes the “tourist”route. There is some stunning scenary going this direction.