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.
Government apologises after child benefit problems
Noel Edmunds gives more details on IOM wine
Consultation asks about protecting Douglas Head
DfE can't say how much it costs to insure the TT
How much would it cost to raise personal tax allowances?
UK's interest in Assisted Dying Bill to be raised in Keys
Celebrity Traitors star coming to Island
Minister to face questions about ferry terminal