KL9857 AmsterdamAMS · 08:00 BrusselsBRU · 09:27
KL9857 by KLM flies from Amsterdam (AMS) to Brussels (BRU).
scheduled from AMS
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at AMS and BRU are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Amsterdam to Brussels flights today
same route · KLMIf KL9857 is cancelled, these are the other KLM nonstop flights from Amsterdam to Brussels on the same day, with scheduled departure times in AMS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How KL9857 actually runs
Pro Flight Search has tracked every published board update for KL9857 across the AMS and BRU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +0 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how KL9857 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: PH-AOF, PH-AKD.
Board clocks recorded as AMS and BRU published them.
Planning around KL9857? 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 — KL9857 Amsterdam to Brussels on-time performance, measured from the AMS and BRU airport boards.
https://proflightsearch.com/flight/KL9857
.