They want to see the passenger cap at Dublin airport raised.
Ryanair's CEO has doubled down on his criticism of the Transport Minister.
The airline wants Minister Eamon Ryan to intervene and raise the passenger cap at Dublin Airport.
A planning application has been submitted to Fingal County Council to expand its capacity to 40m passengers a year.
Ryanair's Michael O' Leary, originally from Mullingar, believes Minister Ryan should act: