| Boechout to Sangeorz-Bai | 944.01 mi (1,519.23 km) |
| Boechout to Sannicolau Mare | 814.09 mi (1,310.15 km) |
| Boechout to Santana | 840.67 mi (1,352.93 km) |
| Boechout to Satu Mare | 855.88 mi (1,377.41 km) |
| Boechout to Scobinti | 1,040.59 mi (1,674.67 km) |
| Boechout to Scornicesti | 1,030.89 mi (1,659.06 km) |
| Boechout to Sebes | 940.23 mi (1,513.16 km) |
| Boechout to Seini | 873.95 mi (1,406.49 km) |
| Boechout to Sfantu-Gheorghe | 1,036.85 mi (1,668.65 km) |
| Boechout to Sibiu | 970.29 mi (1,561.53 km) |
| Boechout to Sighetu Marmatiei | 895.34 mi (1,440.91 km) |
| Boechout to Sighisoara | 983.20 mi (1,582.30 km) |
| Boechout to Simeria | 920.62 mi (1,481.59 km) |
| Boechout to Sinaia | 1,044.22 mi (1,680.52 km) |
| Boechout to Slatina | 1,028.63 mi (1,655.41 km) |
