I've already been disrespectful to our friends in Newcastle and it probably wouldn't be cool to alienate our Scottish friends as well (but in mitigation may I point out that I am an Aus of entirely Scottish descent myself). However. Airlines operating in Scotland have always seemed doomed to failure, and every time an airline withdraw (which they inevitably seem to do) the reason they always give is that the yields just are not there. You can fill a plane to or from Scotland but you can't make it pay. (Perhaps cos Scots are TOO DAMN TIGHT?) Highland Express, almost any US carrier you can name, etc. (Caledonian Wings?) I'm exaggerating slightly but let's face it, Scotland is not known as a place to make money for airlines. If I was running an airline, especially a low-cost one, I'd be hesitant to hitch my wagon to our great neughbour to the north.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz