4Z 754 then SA 24 at Johannesburg
Mthatha → Johannesburg → Harare
Timetable, Johannesburg time
09:504Z 754 from Mthatha at the gate
20:10SA 24 to Harare leaves the gate
10 h 20 apart on the timetable
Johannesburg’s board gives an arrival time for only about 40% of its flights, so many days show no gate time.
The last days
4Z 754 and SA 24 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.