Hoping to crowd source some intel here. We flew EZE-AMS-JFK on a Delta Award ticket. Upon arriving at AMS, our Delta flight to JFK was cancelled due to a crew issue. We were rebooked on IcelandAir from AMS-KEF-JFK.

Does anyone have a case or some other supporting proof that the EU regulations protect the affected leg since it was EU departing? Just curious if someone here has encountered this before.