AK421 Kuala LumpurKUL · 16:45 Banda AcehBTJ
AK421 by AirAsia flies from Kuala Lumpur (KUL) to Banda Aceh (BTJ).
scheduled from KUL
The route today
live boardsTomorrow on this route
ForecastKuala Lumpur to Banda Aceh with AirAsia · Tue 3 Nov, local date
- Chance a departure is cancelled
- 0.5%0.6× usual
- Chance a departure leaves 60+ min late
- 3.2%0.7× usual
Forecast weather: 76% chance of thunder and 91% chance of rain at Kuala Lumpur
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Kuala Lumpur to Banda Aceh flights
same route · AirAsiaIf AK421 is cancelled, this is the other AirAsia nonstop flight from Kuala Lumpur to Banda Aceh, with scheduled departure times in KUL local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How AK421 actually runs
Pro Flight Search has tracked every published board update for AK421 across the KUL and BTJ boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: departed -4 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AK421 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: 9M-AQE.
Board clocks recorded as KUL and BTJ published them.
Planning around AK421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: AK421 Kuala Lumpur to Banda Aceh on-time performance, measured from the KUL and BTJ airport boards.
https://proflightsearch.com/flight/AK421
.