From Bremen airport fly to Amsterdam airport then train to Leeuwarden. 3hrs 51min $210. From Bremen Airport bus to Groningen then train to Leeuwarden. 3hrs 39min $31. From Flughafen, Bremen tram to Bremen Hbf, train to Leer(Ostfriesl), train to Groningen, then train to Leeuwarden. 4hrs 48min $52. From Bremen Airport bus to Oldenburg Hbf/ZOB, bus to Groningen, Hoofdstation, line 314 bus to Drachten, Van Knobelsdorffplein, then bus to Leeuwarden, Busstation. 5hrs 26min $30. From Bremen Airport (BRE) drive to Leeuwarden. 2hrs 37min $51.