| Harrow to Santa Venerina | 1,220.14 mi (1,963.63 km) |
| Harrow to Santeramo in Colle | 1,101.84 mi (1,773.25 km) |
| Harrow to Santo Stefano di Magra | 698.05 mi (1,123.41 km) |
| Harrow to Santo Stino di Livenza | 717.40 mi (1,154.54 km) |
| Harrow to Sarezzo | 631.48 mi (1,016.26 km) |
| Harrow to Sarno | 1,028.35 mi (1,654.97 km) |
| Harrow to Saronno | 593.48 mi (955.12 km) |
| Harrow to Sarzana | 702.08 mi (1,129.89 km) |
| Harrow to Sassari | 861.32 mi (1,386.17 km) |
| Harrow to Sasso Marconi | 729.09 mi (1,173.35 km) |
| Harrow to Sassuolo | 705.84 mi (1,135.94 km) |
| Harrow to Sava | 1,150.40 mi (1,851.39 km) |
| Harrow to Saviano | 1,019.69 mi (1,641.04 km) |
| Harrow to Savigliano | 603.40 mi (971.07 km) |
| Harrow to Savignano sul Panaro | 717.59 mi (1,154.85 km) |
