Ryanair has been forced to cancel 600 flights in the New Year due to a delay in the delivery of new planes it has ordered from the aircraft manufacturer Boeing.
The delay has resulted from a strike at the US company during September and October of this year.
The cancellations will affect new routes from East Midlands Airport in Britain and Pisa Airport in Italy during January, February and March.
Ryanair said it expects its schedule to be fully operational by April, when the new planes are due to be delivered.