
Take off for parts unknown
Lead out for parts unknown / Take off for foreign parts

Prendere il volo per altri lidi 
Lead out for parts unknown / Take off for foreign parts

Prendere il volo per altri lidi 
Meanings
To flee leaving no traces
Examples
When they found out that a lot of money was missing, they also found out that the cashier had taken off for foreign parts
Quando scoprirono l'ammanco di cassa, scoprirono anche che il cassiere aveva preso il volo per altri lidi
After the humiliation she had suffered, Mirella took off for parts unknown
Dopo l'umiliazione subita, Mirella prese il volo per altri lidi