The transit system of buses and tram/U-Bahn lines is run by Üstra (01803-194 49). Most U-Bahn lines from the Hauptbahnhof are boarded in the station’s north (follow signs towards Raschplatz), including U-Bahn 8 to the Messe (fairgrounds, 17 minutes). Lines U10 and U17 are different. These are overground trams leaving south of the station near the tourist office.
Most visitors only travel in the central ‘Hannover’ zone, where single tickets are €1.90 and day passes €3.60. If you wish to venture further into the Umland/Region zones, singles cost €2.60/3.20, while day passes cost €4.80/6.
For taxis call 8484. From the centre to the fairgrounds a taxi costs about €35; to the airport it’s about €20.