Of all the destinatinations I fly to I look forward to DUS with Flybe, in my experience its 99% on time or early. Trouble is that is subjective and I cannot support that with data or advise whether this is better or not than other airlines, and I, like others, have flown with many.
Rather, the posts in this thread are usually of a calibre that make them valuable in terms of making better informed choices. Therefore it remains difficult to understand how one of brums biggest operators did not manage to impair their punctuality if these 4 flights are typical of its performance.
I have not used eurowings on this route yet, perhaps I will. Or perhaps I will check the UK CAA and deutsche LBA data first.