Hi Groundloop
I don't believe FR have ever served Prague other than from DUB.
Eitherway you would not buy an airline for one route I imagine. Best way to check is to read what MOL said to shareholders about the purchase of Buzz at the time.. I do know that runway capacity at STN is an issue for them, thats also one reason why FR have stepped into Luton too.. more runway capacity from London
Flitefone