A quick search on the BAA Glasgow website provided this info on Monarch flights from GLA:
Mondays - 0 flights
Tuesday - 0 flights
Wednesday - Orlando
Thursday - 0 flights
Friday - 0 flights
Saturday - Orlando, Palma ("w" flight")
Sunday - Malaga ("w" flight),
And that is all. If there is a based a/c then it's sitting on the ground doing nothing all week then...