Aer Lingus is being tipped to hire 200 new cabin crew to cope with increasing demand for US flights.
Increasing numbers of passengers are flying from the UK to Ireland to avoid Heathrow and connecting to transatlantic flights from Dublin.
The Irish carrier owned by British Airways parent International Airlines Group is to announce the addition of cabin crew this week, The Times reported.
Connections via Dublin and Shannon airports are being favoured by travellers because passengers can pre-clear US customs to speed up arrival in America.
Some passengers from UK regions prefer to fly to Dublin to avoid congestion at Heathrow or because it is easier to fly to Ireland than to travel to London.
Dublin airport’s capacity eases the pressure on Heathrow as it waits more than a decade for a new runway.
Airbus says it expects Dublin to become one of the most important emerging hubs in Europe in the coming years.