There were problems in Poland mainly Wroclaw with freezing fog and some Snow in Gdansk. Ryanair have 255a/c. Only around 200 were operating over the last week. They could of braught in more aircraft and they can't say there was no dei cing fluid left as a lot are parked across Europe.
A Dublin based a/c had to wait in East-Midlands for an aircraft as the Dublin a/c had to operate a flight to/from East-Midlands on Wednesday and the Dublin crew were waiting for the next a/c to arrive in East-Midlands to go back to Dublin. Those 4 hours 30 minutes could of almost operated a flight between Dublin - Poland and back.
At least Aer Lingus hired larger planes. Why couldn't FR do the same? To much money. Aer Lingus flights were arriving in Dublin until 4:30am today. Ryanair flights stopped at around 17:45 except a flight from ACE which was delayed by 8 Hours due to ATC problems in ACE.
I just think that Ryanair could of taken a few better decisions and not spent so much time getting one up on the DAA.