These transportation options in Gelnhausen might help your romantic trip go off without a hitch: To get to Gelnhausen, you can fly into Frankfurt Airport (FRA), which is the closest major airport, located 29.2 mi (47 km) from the city center. If you want to see more of the area, hop aboard a train from Gelnhausen Station, Haitz-Höchst Station, or Hailer-Meerholz Station.