Budapest problems take another turn.
13 return flights over next 2 weeks canceled. 4 airports in Germany,UK,Greexe.
Ryanair based crews in Budapest must clear Border Control Police on arrivals from Ireland and UK. (this is not required by law)
From 1 March Ryanair said they will not comply.
2 flights not allowed to depart MAN on 1 March and Baden on 2 March
Important Notice For Ryanair Passengers In Budapest, Hungary - Xpatloop.com - Expat Life In Budapest, Hungary - Travel
Those are the 4 airports that most lightly have the lowest bookings.