From Bremen airport fly to Amsterdam airport then train to Leeuwarden. 3hrs 56min $240. From Bremen Airport bus to Groningen then train to Leeuwarden. 3hrs 39min $25. From Bremen Airport bus to Groningen, Hoofdstation, bus to Drachten, Van Knobelsdorffplein, then bus to Leeuwarden, Busstation. 3hrs 55min $27. From Flughafen, Bremen tram to Bremen Hbf, train to Leer(Ostfriesl), train to Groningen, then train to Leeuwarden. 4hrs 31min $73. From Bremen drive to Leeuwarden. 2hrs 37min $57.