Orio al Serio is a comune in the Province of Bergamo in the Italian region of Lombardy, located about 45 kilometres northeast of Milan and abo…Orio al Serio is a comune in the Province of Bergamo in the Italian region of Lombardy, located about 45 kilometres northeast of Milan and about 1 kilometre southeast of Bergamo. Orio al Serio Airport is located in the territory of the village.