The Ben-my-Chree completed more than 97 per cent of its sailings in the last 13 months, according to the Steam Packet Company.
The company said she had a reliability record of 97.17 percent - having embarked on more than 1,300 sailings since January 2018.
The Steam Packet says only a number of ferries were cancelled for technical reasons.
It comes following the Ben undergoing a £1.6 million overhaul in April 2018.
Ramsey Remembrance service to be marked by maroon rockets
MEDS phone line to be down temporarily
Committee to examine link between poverty and poor academic performance
Police advice for trick-or-treaters to stay safe
How will Manx Care reduce the number of negligence claims?
Manx Language Festival to be held next week
Manxman sailings in doubt from tomorrow
Car falls down steep bank on Mountain Road