The Steam Packet Company says two TT sailings to Liverpool will be from Heysham instead.
Pier Head operator Global Ports Holding says the sailings on June 2 and 3 won't be able to use the Mersey landing stage.
The Manannan will operate the crossings, which will take two and a half hours hours, rather than the usual three hours from Liverpool.
The company says coaches will take foot passengers from Liverpool to Heysham and vice versa.
Roads in the process of opening
Race officials say the roads open car is making its way around the course.
Glitch in the Matrix? No - Keanu Reeves is here!
More Hollywood royalty has been photographed at this year's TT.
Senior TT rescheduled to Saturday after red flag
The Senior TT will be rescheduled to tomorrow after tonight's red flag incident, according to race officials.
Rider involved in Senior TT red flag reported as conscious
Race officials say the rider involved in the Senior TT red flag incident is conscious and talking.
Senior TT red flagged
Race officials have announced the Senior TT has been red flagged.
Dunlop celebrates second win of the day
Michael Dunlop's taken his second win of the say in the Sportbike race.
Dunlop takes 35th TT win in Supersport race
Michael Dunlop's won the Supersport Race 2, marking his 35th TT Victory.
Police urge responsible driving after morning's crash delayed racing
Police have issued a new plea for people to drive responsibly so as to not cause disruption to the TT.
