Fianna Fáil are calling on Transport Minister Paschal Donohoe not to allow the sale of the Government's stake in Aer Lingus to go ahead.
The Irish Government owns a 25.1% stake in Aer Lingus. Ryanair owns 29.9%.
Yesterday it emerged that International Airlines Group (IAG) has approached the carrier with a
It is understood IAG submitted a revised proposal worth at least €2.50 per share.
Fianna Fáil has said any such sale could see Aer Lingus’ critical Heathrow slots siphoned off, risking future connectivity and jobs at Dublin, Cork and Shannon airports.
The party's spokesperson for transport Timmy Dooley said: "It is widely recognised in the industry that British Airways does not have enough landing slots at Heathrow currently to meet its demand from other international locations.
"The likelihood is that slots would be transferred to facilitate (that) and you'd see a reduction in the services from Ireland - maybe using bigger aircraft less frequently, which would obviously impact on business and tourism-related activities in the region."