Looking at Shannon Airport's official route wish list (
The Route Shop | Shannon Airport (SNN/EINN) ) some obvious exceptions include:
Glasgow, Birmingham, Bristol, Newcastle, Krakow, Faro, Alicante, Barcelona, Brussels.
Maybe some these destinations are not on their wish list because Shannon Airport know of imminent route announcements of which Joe Public is currently ignorant?
PS - I never heard of
Franfurt before
