Have done a quick check for your mid-August travel date (I chose Tues 17 Aug as an example)
is 56.82 Euros incl taxes. You'd then need to add 15 Euros to the cost to get from RTM
Total cost= 71.82 euros.
is 36.07 Euros incl taxes, then do STN
with EasyJet at a cost of 17.99GBP incl taxes (approx 26 Euros).
Total cost (approx)= 62 Euros
Like a fine wine, one gets better with age.