| Alfter to Sangeorz-Bai | 830.97 mi (1,337.31 km) |
| Alfter to Sannicolau Mare | 701.11 mi (1,128.32 km) |
| Alfter to Santana | 727.22 mi (1,170.35 km) |
| Alfter to Satu Mare | 742.77 mi (1,195.37 km) |
| Alfter to Scobinti | 928.18 mi (1,493.77 km) |
| Alfter to Scornicesti | 917.70 mi (1,476.89 km) |
| Alfter to Sebes | 826.64 mi (1,330.35 km) |
| Alfter to Seini | 760.90 mi (1,224.54 km) |
| Alfter to Sfantu-Gheorghe | 923.26 mi (1,485.84 km) |
| Alfter to Sibiu | 856.69 mi (1,378.70 km) |
| Alfter to Sighetu Marmatiei | 782.63 mi (1,259.52 km) |
| Alfter to Sighisoara | 869.60 mi (1,399.49 km) |
| Alfter to Simeria | 807.12 mi (1,298.94 km) |
| Alfter to Sinaia | 930.61 mi (1,497.67 km) |
| Alfter to Slatina | 915.57 mi (1,473.48 km) |
