4Z 840 then SA 405 at Johannesburg
Mpumalanga → Johannesburg → Port Elizabeth
Timetable, Johannesburg time
11:454Z 840 from Mpumalanga at the gate
11:25SA 405 to Port Elizabeth leaves the gate
23 h 40 apart on the timetable, overnight
SA 405 leaves 23 h 40 after 4Z 840 arrives on the timetable: more than half a day, so not a connection we count.