From Salzburg airport, take the bus or taxi to the main station (Salzburg/Hauptbahnhof) and continue by train. (Travel time ca. 2 hours)
From Linz airport, take the bus or taxi to the main station (Linz/Hauptbahnhof) and continue by train. (Travel time ca. 2 hours)
From Vienna airport, take the airport bus or the train to Vienna main station (Wien/Hauptbahnhof) and continue by train. Some train connections transfer directly to Attnang Puchheim (Travel time ca. 3,5 hours)
From Munich airport, take a taxi or the suburban train (S1) to the main station (München/Hauptbahnhof) and continue on through Salzburg by train. (Travel time ca. 4 hours)