From Bovec drive to Cividale del Friuli, train to Udine, then train to Trieste Centrale. 3 h 2 min 16€. From Bovec drive to Trieste. 1 h 54 min 19€. From Bovec bus to Kranjska Gora then shuttle to Trieste Centrale. 3 h 54 min 139€.
Train from Bovec to Trieste
Ferrovie Udine Civitale operates a train from Bovec to Trieste hourly. Tickets cost $2 - $4 and the journey takes 22 min. Trenitalia also services this route hourly.