The route from Koriyama to Yamagata is primarily serviced by the Yamabiko Shinkansen, a reliable and efficient option for travelers. This train offers two classes of seating: Ordinary and Green class, catering to different preferences for comfort. The Yamabiko Shinkansen reaches speeds of up to 240 km/h (149 mph) and completes the journey in approximately 1 hour and 15 minutes, making limited stops at major stations such as Sendai and Fukushima.
There are also local train services, such as the Rapid Sanriku, which, while slower, allows passengers to engage with more regional areas along the route. This service takes around 2 hours and has a maximum speed of about 120 km/h (75 mph).
Travelers choosing the Yamabiko can expect modern amenities onboard, including spacious seating and food options, while the local trains provide a more scenic, though lengthier, travel experience. The Yamabiko Shinkansen is ideal for those prioritizing speed, whereas the local trains are suited for those wanting to explore the surrounding regions.