Sent my brother yesterday on LH J flight 403. The Flight was delayed almost 4 Hours (3:47). The reason for the delay was due to the plane arriving late from FRA (LH 401), Since the airport was on lock down for a couple of hours due to a security threat.
Question: Will LH still compensate me or will they claim this (copied from europa.eu)?
If you arrived at your final destination with a delay of more than 3 hours, you are entitled to compensation, unless the delay was due to extraordinary circumstances.
Extraordinary circumstances - Delay
Extraordinary circumstances can lead to more than one cancellation or delay at the final destination. Examples of events defined as extraordinary circumstances are air traffic management decisions, political instability, adverse weather conditions and security risks.