| Oud-Heverlee to Sangeorz-Bai | 933.21 mi (1,501.85 km) |
| Oud-Heverlee to Sannicolau Mare | 799.52 mi (1,286.70 km) |
| Oud-Heverlee to Santana | 826.97 mi (1,330.88 km) |
| Oud-Heverlee to Satu Mare | 844.96 mi (1,359.84 km) |
| Oud-Heverlee to Scobinti | 1,030.67 mi (1,658.71 km) |
| Oud-Heverlee to Scornicesti | 1,016.58 mi (1,636.03 km) |
| Oud-Heverlee to Sebes | 927.05 mi (1,491.94 km) |
| Oud-Heverlee to Seini | 863.13 mi (1,389.08 km) |
| Oud-Heverlee to Sfantu-Gheorghe | 1,024.56 mi (1,648.88 km) |
| Oud-Heverlee to Sibiu | 957.17 mi (1,540.42 km) |
| Oud-Heverlee to Sighetu Marmatiei | 885.04 mi (1,424.34 km) |
| Oud-Heverlee to Sighisoara | 970.90 mi (1,562.52 km) |
| Oud-Heverlee to Simeria | 907.03 mi (1,459.72 km) |
| Oud-Heverlee to Sinaia | 1,031.24 mi (1,659.62 km) |
| Oud-Heverlee to Slatina | 1,014.08 mi (1,632.00 km) |
