| Ciechanow to Sangeorz-Bai | 419.81 mi (675.62 km) |
| Ciechanow to Sannicolau Mare | 470.05 mi (756.47 km) |
| Ciechanow to Santana | 451.92 mi (727.30 km) |
| Ciechanow to Satu Mare | 364.57 mi (586.71 km) |
| Ciechanow to Scobinti | 470.17 mi (756.66 km) |
| Ciechanow to Scornicesti | 600.17 mi (965.89 km) |
| Ciechanow to Sebes | 495.02 mi (796.66 km) |
| Ciechanow to Seini | 372.47 mi (599.44 km) |
| Ciechanow to Sfantu-Gheorghe | 536.24 mi (862.99 km) |
| Ciechanow to Sibiu | 513.64 mi (826.62 km) |
| Ciechanow to Sighetu Marmatiei | 370.06 mi (595.55 km) |
| Ciechanow to Sighisoara | 495.62 mi (797.63 km) |
| Ciechanow to Simeria | 496.39 mi (798.86 km) |
| Ciechanow to Sinaia | 564.66 mi (908.73 km) |
| Ciechanow to Slatina | 607.09 mi (977.02 km) |
