EU261 Query
A family member was delayed on their flight yesterday. Between two EU destinations, the departure was over 3 hours late. Looking at Flightaware, the pilots were caning it to reduce that down during the flight which they managed to do by some minutes.
So, question is is the EU261 triggered by the late departure, the late arrival, takeoff/landing time, or block to block ? I've looked at various sites, but they all seem to say the same things, but not the specifics. Any info welcome.