| Harrow to Sangeorgiu de Mures | 1,169.32 mi (1,881.84 km) |
| Harrow to Sangeorz-Bai | 1,154.35 mi (1,857.75 km) |
| Harrow to Sannicolau Mare | 1,022.37 mi (1,645.35 km) |
| Harrow to Santana | 1,050.02 mi (1,689.85 km) |
| Harrow to Satu Mare | 1,066.26 mi (1,715.99 km) |
| Harrow to Scobinti | 1,250.52 mi (2,012.52 km) |
| Harrow to Scornicesti | 1,239.52 mi (1,994.81 km) |
| Harrow to Sebes | 1,150.05 mi (1,850.82 km) |
| Harrow to Seini | 1,084.31 mi (1,745.03 km) |
| Harrow to Sfantu-Gheorghe | 1,247.16 mi (2,007.11 km) |
| Harrow to Sibiu | 1,180.15 mi (1,899.28 km) |
| Harrow to Sighetu Marmatiei | 1,105.50 mi (1,779.14 km) |
| Harrow to Sighisoara | 1,193.50 mi (1,920.76 km) |
| Harrow to Simeria | 1,130.08 mi (1,818.69 km) |
| Harrow to Sinaia | 1,254.18 mi (2,018.41 km) |
