KL1521 AmsterdamAMS · 20:35 BarcelonaBCN · 23:05
KL1521 by KLM flies from Amsterdam (AMS) to Barcelona (BCN) for the Sun, Oct 25 departure.
arrival expected at BCN · on schedule
board checked 44m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at AMS and BCN 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 Barcelona flights today
same route · KLMIf KL1521 is cancelled, these are the other KLM nonstop flights from Amsterdam to Barcelona 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 KL1521 actually runs
Pro Flight Search has tracked every published board update for KL1521 across the AMS and BCN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +40 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how KL1521 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-AXM, PH-AXI.
Board clocks recorded as AMS and BCN published them.
Planning around KL1521? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — KL1521 Amsterdam to Barcelona on-time performance, measured from the AMS and BCN airport boards.
https://proflightsearch.com/flight/KL1521
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