No airline company can avoid delays completely. Delays can occur for a number of different reasons: congestion in the airspace, technical reasons, weather conditions and so on.
In cases of delays, Novair and its tour operator do their utmost to alleviate the effects of the delay.
Try to have at least 2,5 hours spare time between connecting flights, for both outbound and return trips as delays may occur at some point.
You can get a document of proof of delayed flights through Novair customer service.