| Portsmouth to Rovinj | 785.67 mi (1,264.41 km) |
| Portsmouth to Samobor | 843.74 mi (1,357.86 km) |
| Portsmouth to Sesvete | 859.25 mi (1,382.83 km) |
| Portsmouth to Sibenik | 930.64 mi (1,497.72 km) |
| Portsmouth to Sinj | 961.63 mi (1,547.59 km) |
| Portsmouth to Sisak | 882.15 mi (1,419.69 km) |
| Portsmouth to Slatina | 930.24 mi (1,497.08 km) |
| Portsmouth to Slavonski Brod | 961.95 mi (1,548.10 km) |
| Portsmouth to Solin | 963.15 mi (1,550.04 km) |
| Portsmouth to Split | 961.89 mi (1,548.02 km) |
| Portsmouth to Sveti Ivan Zelina | 860.26 mi (1,384.46 km) |
| Portsmouth to Trilj | 968.42 mi (1,558.52 km) |
| Portsmouth to Trogir | 954.14 mi (1,535.53 km) |
| Portsmouth to Umag | 767.20 mi (1,234.70 km) |
| Portsmouth to Valpovo | 961.67 mi (1,547.66 km) |
