FR 730 then FR 9753 at Vienna
London Stansted → Vienna → Banja Luka
Timetable, Vienna time
20:50FR 730 from London Stansted at the gate
14:15FR 9753 to Banja Luka leaves the gate
17 h 25 apart on the timetable, overnight
FR 9753 leaves 17 h 25 after FR 730 arrives on the timetable: more than half a day, so not a connection we count.