Bus fares to and from Uckfield are due to increase from September 23.
The rise has been announced by East Sussex County Council which gives an example of an adult single fare between Heathfield and Uckfield increasing by 20p to £2.80 and the day return increasing by 30p to £4.20.
The council says it is not possible to give details about specific journeys because there are so many fare variations. It recommends passengers should contact the bus operator they use to see how their journey will be affected.
This is the first time the counci has increased fares, on most of the routes, for three years.
Cllr Carl Maynard, lead cabinet member for transport and environment, said: “I appreciate nobody likes price rises but we do need to put fares up now because of the rising costs of fuel.”