LH 1263 then BJ 247 at Frankfurt
Salzburg → Frankfurt am Main → Tunis
Timetable, Frankfurt am Main time
15:50LH 1263 from Salzburg at the gate
11:30BJ 247 to Tunis leaves the gate
19 h 40 apart on the timetable, overnight
BJ 247 leaves 19 h 40 after LH 1263 arrives on the timetable: more than half a day, so not a connection we count.