The distance between Frankfurt am Main and Frankfurt (Hahn) airport is ca. 120 km:
3718829391281882893928873767466326 seconds
296.67 kilometres (184.34 miles)
Get a bus outside Hahn airport. There is a bus that goes into Frankfurt city which goes through Frankfurt airport and (eventually!) stops across from Frankfurt central train station. The bus runs...
The shortest driving time is 4 hours and 33 minutes.