Traveling between Frankfurt (Main) and Dortmund offers a variety of train services, primarily featuring the Intercity-Express (ICE), Intercity (IC), and regional trains. The ICE provides the fastest journey, taking just around 2 hours with a high level of comfort and amenities. If you are looking for a more economical option, the IC trains follow closely in terms of speed, reaching Dortmund in approximately 2.5 hours while still maintaining good comfort. For those wishing to explore a more scenic route or save on costs, regional trains are also available, though they may take upwards of 3.5 hours. Each service caters to different preferences, ensuring travelers can find the best option to suit their schedules and budgets.