Direct flights Ibiza to Austria:

Ibiza to Salzberg
Ibiza to Vienna

Flights Ibiza to Austria with 1 stopover:

Flights via Palma de Mallorca (PMI), Spain
From Graz (GRZ) Austria with Air Berlin
OR
From Graz (GRZ), Austria with FlyNiki
Transfer at Palma de Mallorca (PMI), Spain Then on to Ibiza Airport (IBZ), Spain with Air Berlin
OR
Then on to Ibiza Airport (IBZ), Spain with FlyNiki
Flights via Frankfurt am Maim (FRA), Germany
From Graz (GRZ), Austria with Lufthansa Transfer at Frankfurt am Maim (FRA) Then on to Ibiza Airport (IBZ), Spain with Lufthansa
Flights via Munich (MUC), Germany
From Graz (GRZ), Austria with Lufthansa
OR
From Graz (GRZ), Austria with Austrian Airlines
Transfer at Munich (MUC) Then on to Ibiza Airport (IBZ), Spain with Lufthansa
OR
Then on to Ibiza Airport (IBZ), Spain with Austrian Airlines
Flights via Dusseldorf International (DUS), Germany
From Graz (GRZ), Austria with Lufthansa Transfer at Dusseldorf International (DUS) Then on to Ibiza Airport (IBZ), Spain with Lufthansa