KL646 New YorkJFK · 19:10 AmsterdamAMS · 08:40
KL646 by KLM flies from New York (JFK) to Amsterdam (AMS) for the Wed, Sep 9 departure.
departs JFK · on schedule
board checked 3m ago · checking again in 45s
⚖ KL646 typically leaves +6 and lands −17. The air wins minutes back.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 −17 min · 0 cancelled · 8 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at JFK and AMS 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 New York to Amsterdam flights today
same route · KLMIf KL646 is cancelled, these are the other KLM nonstop flights from New York to Amsterdam on the same day, with scheduled departure times in JFK local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How KL646 actually runs
Pro Flight Search has tracked every published board update for KL646 across the JFK and AMS boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 8 confirmed landings · 8/8 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how KL646 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-BVF, PH-BVC, PH-BVR, PH-BQF.
Board clocks recorded as JFK and AMS published them.
Planning around KL646? 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 — KL646 New York to Amsterdam on-time performance, measured from the JFK and AMS airport boards.
https://proflightsearch.com/flight/KL646
.