City of Derry Airport have confirmed that flights in and out of the airport have been cancelled this morning.
Dublin Airport passengers face delays and many flights have been cancelled.
All flights in and out of Belfast City Airport have been cancelled while the vast majority have been halted at Belfast International Airport.
There's massive disruption for air passengers this morning.
A cloud of ash caused by a volcano erupting in Iceland has brought havoc to flight schedules across Ireland, the UK and Europe.