Amtrak Northeast Regional operates a train from Providence to Westerly 5 times a day. Tickets cost $65 - $180 and the journey takes 41 min. Alternatively, Rhode Island Public Transit Authority operates a bus from Providence to Westerly twice daily. Tickets cost $2 and the journey takes 1 h 13 min.
From Providence Amtrak train to Westerly Amtrak. 41 min $106. From Kennedy Plaza bus to Westerly Railroad Station. 1 h 13 min $2. From Providence taxi to Westerly. 49 min $157. From Providence drive to Westerly. 49 min $5. From Providence Uber to Westerly. 49 min $63.