The absolute best route to drive from Split to Dubrovnik in 2026 is via the A1 Motorway and the Pelješac Bridge. Starting in Split, you enter the A1 at the Dugopolje junction and drive south for about 100km to Ploče. From there, you transition to the D8 coastal road until you reach the Pelješac Bridge (Pelješki most). This bridge, opened in 2022, is a game-changer because it allows you to bypass the "Neum Corridor" in Bosnia and Herzegovina. This means you stay entirely within Croatian territory, avoiding two separate international border crossings that used to cause hours of delays, especially in the summer. The bridge route is not only faster and more reliable but also incredibly scenic. For those with more time, the Adriatic Highway (Jadranska Magistrala) from Split to Ploče (via Omiš and Makarska) offers stunning cliffside views, but the A1/Pelješac Bridge combo is the preferred "standard" for efficiency and ease in 2026.