FR 9754 then FR 7360 at Vienna
Banja Luka → Vienna → Milan Bergamo
Timetable, Vienna time
14:30FR 9754 from Banja Luka at the gate
11:45FR 7360 to Milan Bergamo leaves the gate
21 h 15 apart on the timetable, overnight
FR 7360 leaves 21 h 15 after FR 9754 arrives on the timetable: more than half a day, so not a connection we count.