Flughafen Frankfurt Main is 10 km (6 miles) southwest of downtown via the A-5 autobahn, and has its own railway station for high-speed InterCity (IC) and InterCity Express (ICE) trains. Getting into Frankfurt from the airport is easy, via S-bahn line Nos. 8 and 9 that run between the airport and downtown. Most travelers get off at the Hauptbahnhof (main train station, or HBF) or at Hauptwache, in the heart of Frankfurt. Trains run at least every 15 minutes, and the trip takes about 15 minutes. The one-way fare is €4.25. A taxi from the airport into the City Center normally takes around 25 minutes (double that during rush hours). The fare is around €35. If you are driving a rental car from the airport, take the main road out of the airport and follow the signs reading "Stadtmitte" (downtown).
Bohr Busreisen offers a regular bus service to and from Frankfurt-Hahn Airport. It leaves every hour to every 1½ hours, 3 am to 8 pm, from the south side of the Frankfurt Hauptbahnhof, with a stop 15 minutes later at the Terminal 1 bus station at Flughafen Frankfurt Main. The trip to Frankfurt-Hahn takes an hour and 45 minutes, and costs €14.