| Constanta to Sangeorz-Bai | 291.96 mi (469.87 km) |
| Constanta to Sannicolau Mare | 412.24 mi (663.43 km) |
| Constanta to Santana | 378.13 mi (608.54 km) |
| Constanta to Satu Mare | 372.26 mi (599.10 km) |
| Constanta to Scobinti | 236.85 mi (381.17 km) |
| Constanta to Scornicesti | 203.58 mi (327.62 km) |
| Constanta to Sebes | 276.35 mi (444.75 km) |
| Constanta to Seini | 356.50 mi (573.74 km) |
| Constanta to Sfantu-Gheorghe | 181.82 mi (292.61 km) |
| Constanta to Sibiu | 246.11 mi (396.07 km) |
| Constanta to Sighetu Marmatiei | 345.18 mi (555.52 km) |
| Constanta to Sighisoara | 234.62 mi (377.58 km) |
| Constanta to Simeria | 298.21 mi (479.93 km) |
| Constanta to Sinaia | 171.88 mi (276.61 km) |
| Constanta to Slatina | 211.87 mi (340.97 km) |
