4Z21 JohannesburgJNB · 10:40 LubumbashiFBM
4Z21 by Airlink flies from Johannesburg (JNB) to Lubumbashi (FBM).
scheduled from JNB
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 14 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How 4Z21 actually runs
Pro Flight Search has tracked every published board update for 4Z21 across the JNB and FBM boards: schedule changes, gate pushes and actual clocks. Usually departs ~30 min late. Based on 13 confirmed departures · 0/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how 4Z21 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as JNB and FBM published them.
Planning around 4Z21? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — 4Z21 Johannesburg to Lubumbashi on-time performance, measured from the JNB and FBM airport boards.
https://proflightsearch.com/flight/4Z21
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