| Sulmona to Sangeorz-Bai | 642.54 mi (1,034.07 km) |
| Sulmona to Sannicolau Mare | 432.41 mi (695.89 km) |
| Sulmona to Santana | 478.27 mi (769.71 km) |
| Sulmona to Satu Mare | 590.67 mi (950.59 km) |
| Sulmona to Scobinti | 736.00 mi (1,184.48 km) |
| Sulmona to Scornicesti | 561.34 mi (903.39 km) |
| Sulmona to Sebes | 549.70 mi (884.65 km) |
| Sulmona to Seini | 603.32 mi (970.95 km) |
| Sulmona to Sfantu-Gheorghe | 645.35 mi (1,038.59 km) |
| Sulmona to Sibiu | 570.32 mi (917.84 km) |
| Sulmona to Sighetu Marmatiei | 633.36 mi (1,019.29 km) |
| Sulmona to Sighisoara | 610.21 mi (982.04 km) |
| Sulmona to Simeria | 522.21 mi (840.41 km) |
| Sulmona to Sinaia | 623.20 mi (1,002.94 km) |
| Sulmona to Slatina | 550.10 mi (885.31 km) |
