4Z 756 then FA 113 at Johannesburg
Mthatha → Johannesburg → Cape Town
Timetable, Johannesburg time
19:004Z 756 from Mthatha at the gate
18:15FA 113 to Cape Town leaves the gate
23 h 15 apart on the timetable, overnight
FA 113 leaves 23 h 15 after 4Z 756 arrives on the timetable: more than half a day, so not a connection we count.