4Z 273 then SA 419 at Johannesburg
Maputo → Johannesburg → Port Elizabeth
Timetable, Johannesburg time
16:504Z 273 from Maputo at the gate
16:00SA 419 to Port Elizabeth leaves the gate
23 h 10 apart on the timetable, overnight
SA 419 leaves 23 h 10 after 4Z 273 arrives on the timetable: more than half a day, so not a connection we count.