Somewhat tells me for the Greek flagship, Olympic Air. I see them less over Europe at the more high-demanded airports.
Olympic have withdrawn from most of their international routes, Aegean is now the de facto national carrier of Greece. It plans to take over what’s left of Olympic if the EU will allow – although the two brands would not be merged in the first instance. Aegean is a quality airline (which Olympic never was) and was routinely profitable until the Greek economy collapsed. If the merger is not allowed, Olympic will just fade away and die.
Several other European ‘national airlines’ are on the extremely endangered list.
Who do I miss? Malev. An excellent little airline, far better than most gave it credit for.