Dreieich lies within the area covered by the Rhein-Main-Verkehrsverbund. At Dreieich-Buchschlag station there are connections to S-Bahn lines S3 and S4. The Dreieichbahn (Dieburg – Rödermark-Ober Roden – Dreieich-Buchschlag) with the stations Dreieich-Offenthal, Dreieich-Götzenhain, Dreieich-Dreieichenhain, Dreieich-Weibelfeld, Dreieich-Sprendlingen and Dreieich-Buchschlag also serves the town. The DB Regio Regionalbahnen run half-hourly on weekdays and hourly on weekends. On weekdays, the trains alternate between going to Frankfurt Central Station and Neu-Isenburg from Dreieich-Buchschlag. On weekends, the trains end in Dreieich-Buchschlag. Furthermore, some buslines serve the town: