Compensation for passengers if flights are delayed for three hours or more

The European Court of Justice has in its recent decision (Judgement in joint cases C-581/10, Nelson/Deutsche Lufthansa and C-629/10, TUI Travel and Others) confirmed its previous ruling that passengers whose flights have been delayed for a long time may be compensated.
Therefore, not only in case of flight cancellations, but also where passengers reach their final destination three hours or more after the scheduled arrival time, they shall be entitled to fixed compensation from the airline, unless the delay is caused by extraordinary circumstances passengers. Accordingly, such a delay does not entitle passengers to compensation if the air carrier can prove that the long delay is caused by extraordinary circumstances which could not have been avoided even if all reasonable measures had been taken, namely circumstances beyond the actual control of the air carrier.