The T&T Spirit is expected to return to service on the seabridge on Friday with a sailing scheduled from Port-of-Spain at 5 pm.
According to a notice from the T&T Inter-Island Transportation Company, repairs to the vessel will be completed on Thursday.
The vessel had been taken off the service after developing mechanical problems on Monday and a part had to be sourced from Germany to effect the repairs.
Problems with the vessel in recent weeks had resulted in delays and cancellations of sailings.
The Galleons Passage will leave for Tobago at 6 am on Friday and will make its return trip at 4 pm, while the MV Cabo Star sails from Port-of-Spain at 2 pm and from Tobago at 11 pm.