No, CONVIASA has no scheduled flights out of Dublin. However, CONVIASA does fly out of Porlamar DelCaribe Marino. There are also other airline options to choose from if you still want to book a flight from Dublin. WOW air, for example, is an airline that flies out of Dublin on a regular basis.
Caracas Simon Bolivar is the most popular airport that CONVIASA serves, followed by Havana Jose Marti Intl and Isla los Roques Los Roques.