Bus users in Hadleigh will get free Sunday services as part of a council initiative to encourage more people to use public transport.
The number 90 service between Hadleigh and Ipswich will be free from August 3 and will be tested with two added services.
The new services will run until December as part of a trial, when their usage will be reviewed.
Councillor Graham Newman, the council’s cabinet member for roads, transport and planning, said: “With Sunday trading becoming more popular to the public, we need to ensure those living outside Ipswich have access to reliable public transport.
“These services will provide a cheaper, more efficient way to travel in to the centre of the city.
“I encourage all to support the services during the free period until the end of the trial to ensure we can continue these services for the benefit of all.”