| Harrow to Ascoli Piceno | 886.91 mi (1,427.35 km) |
| Harrow to Asola | 660.06 mi (1,062.27 km) |
| Harrow to Asolo | 685.96 mi (1,103.95 km) |
| Harrow to Assemini | 961.34 mi (1,547.12 km) |
| Harrow to Assisi | 842.73 mi (1,356.24 km) |
| Harrow to Asti | 605.94 mi (975.16 km) |
| Harrow to Atessa | 956.70 mi (1,539.66 km) |
| Harrow to Atri | 914.21 mi (1,471.28 km) |
| Harrow to Atripalda | 1,029.84 mi (1,657.36 km) |
| Harrow to Augusta | 1,247.78 mi (2,008.11 km) |
| Harrow to Aulla | 696.77 mi (1,121.35 km) |
| Harrow to Aurisina | 757.86 mi (1,219.67 km) |
| Harrow to Avellino | 1,028.63 mi (1,655.41 km) |
| Harrow to Aversa | 1,006.69 mi (1,620.11 km) |
| Harrow to Avezzano | 924.26 mi (1,487.45 km) |
