Some flights diverted to Kuala Lumpur and Langkawi,
He says the amount involved will be a commercial decision by Firefly.
Management of the airspace was delegated to Singapore in 1974 and the transport ministers of both countries have agreed to review the airspace agreement.
This paves the way for FireFly to resume its flights to Singapore.
The plan is still at an early stage of implementation, says Johor Menteri Besar Osman Sapian.
Temppoh penggantungan bersama pelaksanaan tatacara ILS di Seletar dan Kawasan Larangan Kekal di Pasir Gudang dipendekkan ke Mac.
Foreign Minister Saifuddin Abdullah will meet his Singaporean counterpart, Vivian Balakrishnan.
Prime Minister Lee Hsien Loong says the two nations must manage specific problems, however difficult, while preserving the overall relationship.
Singapore Foreign Minister phones his Malaysian counterpart Saifuddin Abdullah to discuss complaints about intrusions into each other’s territories.
This follows certain concerns expressed by the Civil Aviation Authority of Malaysia which need to be discussed with Singapore.
Firefly, a unit of Malaysia Airlines, is currently operating 20 daily turboprop flights — to and from Subang, Ipoh and Kuantan — at Changi Airport.