The route from Higashimuroran to Onumakoen is primarily serviced by the Limited Express trains, specifically the Super Hokuto service. This train maintains a cruising speed of approximately 130 km/h (81 mph), allowing passengers to complete the journey in about 2 hours and 15 minutes. It operates along the scenic coastline of Hokkaido, with various stops including notable destinations such as Muroran and Noboribetsu.
The Super Hokuto offers both Ordinary and Green class seating, catering to different passenger preferences and providing comfort for travelers. Although there are no Shinkansen trains on this route, the Limited Express ensures a reliable and pleasant travel experience with amenities such as onboard refreshments and spacious seating. For travelers with time constraints, taking the Super Hokuto is the most efficient choice.