Fares will go up in late March to maintain the balance between States funding and passenger contributions.
Since January 2022, the standard Guernsey bus fare has risen in stages from £1 to £1.70 - a 70% increase in 4 years.
Environment & Infrastructure says the latest 10p rise follows a public consultation and will help balance passenger contributions with government funding.
The States contribute well over half of the running costs.
Several other bus fares will also increase from 30 March.
E&I says that the responses to a separate public consultation on proposed bus route changes are still being considered.
These would see some routes expanded and others, like the P2, cut, to put more buses where there is greatest demand.
Guernsey Airport to stay open later as part of Aurigny's profitability plans
States to vote on independence for The Ladies' College
Guernsey Budget 2027: £15m growth fund and fuel duty hikes
Donations in memory of Hannah Benfield to Alderney rescue groups
Deputies asked to approve £6m Guernsey Airport roof repairs
Majority of Guernsey stamps bought by collectors
Alex Scott withdraws from England squad
GST backlash prompts call for calm from Guernsey deputy
