The route from Shunan to Onomichi is primarily serviced by the Sanyo Line trains, including the Rapid Service and local trains. The Rapid Service operates at speeds of up to 130 km/h (81 mph), allowing passengers to complete the journey in approximately 1 hour and 30 minutes, while local trains may take up to 2 hours due to additional stops at smaller stations.
The Rapid Service is a comfortable option with basic amenities, including individual seating and overhead storage. It connects Shunan to Onomichi with direct access, making it a practical choice for travelers wanting to explore the scenic coastal region. In contrast, local trains provide a more leisurely ride, stopping at all stations along the route, which may appeal to those looking to visit the smaller towns. While the whole journey remains reasonably quick, the Rapid Service stands out for its speed and efficiency.