The ferry operator introduced an essential services timetable on January 3 when the number of staff absent due to Covid became so high that it was unable to operate a full service.
The temporary timetable was due to continue till February 6. However, the winter timetable for most routes resumed on Wednesday January 26. Port offices also reverted to normal opening hours.
This included the reopening of on-board retail and food and drink offering as well as the Coffee Cabin at Ardrossan Port.
Managing director Robbie Drummond said: 'I am pleased to say that because of a significant drop in the number of staff unable to work due to Covid we can now offer a full winter service on the majority of routes.
'Thank you to all passengers for their patience and understanding and we look forward to welcoming them back on board.'
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