If your flight is delayed at least as follows:
you will receive the following free support services:
Particular attention must be paid to the needs of people with restricted mobility and their companions as well as unaccompanied children when it comes to care services.
If the delay is at least 5 hours, you have the same rights as in the case of denied boarding. You are also entitled to compensation as described under the heading Denied Boarding if your arrival at the destination airport is delayed by 3 hours or more and the airline fails to demonstrate the existence of exceptional circumstances.