The company should have opened its spring schedule in early January, but now plans to put off the first flights for up to a half a year.
Recently the firm has been shuttling oil workers to platforms in the North Sea, as helicopters previously used for that task are out of action due to a technical fault.
Oil business transports are more profitable for Copterline than passenger traffic between Helsinki and Tallinn.
According to Mäkelä, negotiations on continuing the oil platform flights are ongoing.
The company has struggled ever since a 2005 crash that killed everyone on board after take-off from Tallinn.