4Z121 WindhoekWDH JohannesburgJNB · 11:10
4Z121 by South African Airlink flies from Windhoek (WDH) to Johannesburg (JNB) for the Wed, Sep 23 departure.
arrived at JNB · 22 min early
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 operationmedian arrival −18 min · 0 cancelled · 13 operations tracked
The route today
live boardsHow 4Z121 actually runs
Pro Flight Search has tracked every published board update for 4Z121 across the WDH and JNB boards: schedule changes, gate pushes and actual clocks. Usually lands ~18 min early. Based on 13 confirmed landings · 13/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how 4Z121 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 WDH and JNB published them.
Planning around 4Z121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — 4Z121 Windhoek to Johannesburg on-time performance, measured from the WDH and JNB airport boards.
https://proflightsearch.com/flight/4Z121
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