From any Rail Station in the UK you can purchase your train ticket with an add-on bus journey within the Weymouth area for travel with First.
The fares, which are purchased when buying your rail ticket are as follows:
PlusBus Single Ticket Prices
Season tickets are also available at the following prices:
Season Ticket Prices (Adult only)
PlusBus is no longer available in Dorchester.
Go to the Plus Bus website for further information on the travel zone and where you can go.