| Sidcup to Sangeorgiu de Mures | 1,148.77 mi (1,848.76 km) |
| Sidcup to Sangeorz-Bai | 1,134.23 mi (1,825.37 km) |
| Sidcup to Sannicolau Mare | 1,001.05 mi (1,611.03 km) |
| Sidcup to Santana | 1,028.94 mi (1,655.92 km) |
| Sidcup to Satu Mare | 1,046.09 mi (1,683.52 km) |
| Sidcup to Scobinti | 1,230.75 mi (1,980.70 km) |
| Sidcup to Scornicesti | 1,218.24 mi (1,960.57 km) |
| Sidcup to Sebes | 1,129.11 mi (1,817.13 km) |
| Sidcup to Seini | 1,064.17 mi (1,712.62 km) |
| Sidcup to Sfantu-Gheorghe | 1,226.52 mi (1,973.89 km) |
| Sidcup to Sibiu | 1,159.24 mi (1,865.62 km) |
| Sidcup to Sighetu Marmatiei | 1,085.56 mi (1,747.05 km) |
| Sidcup to Sighisoara | 1,172.86 mi (1,887.53 km) |
| Sidcup to Simeria | 1,109.02 mi (1,784.80 km) |
| Sidcup to Sinaia | 1,233.31 mi (1,984.81 km) |
