The Manchester to Glasgow route actually appeared in 3rd place in October 2017 for the top airport pairs in Europe adding the most flights when compared to October 2016, the average daily movements for October 2017 were 15 (+9 flights per day) I think this was when Loganair were operating up to 6 x daily services on certain weekdays.
Interestingly, the Aberdeen to Sumburgh appeared in 4th place, adding 8 flights per day with an average of 35 movements per day (this is one of the routes that flyBe are ceasing in early JAN leaving Loganair to operate)