From Split line 38 bus to Split airport, fly to Frankfurt airport, then light rail to Frankfurt. 4hrs 41min 188€. From Split train to Zagreb Glavni Kolod. then train to Frankfurt(Main)Hbf. 20hrs 01min 83€. From Split bus to Frankfurt Hbf. 22hrs 15min 112€. From Split bus to Karlovac then bus to Frankfurt. 26hrs 25min 160€. From Split drive to Frankfurt. 13hrs 26min 219€.