| Harpenden to Ascoli Piceno | 897.02 mi (1,443.62 km) |
| Harpenden to Asola | 670.24 mi (1,078.65 km) |
| Harpenden to Asolo | 694.59 mi (1,117.84 km) |
| Harpenden to Assemini | 975.28 mi (1,569.56 km) |
| Harpenden to Assisi | 853.22 mi (1,373.12 km) |
| Harpenden to Asti | 617.90 mi (994.41 km) |
| Harpenden to Atessa | 966.85 mi (1,555.99 km) |
| Harpenden to Atri | 924.28 mi (1,487.48 km) |
| Harpenden to Atripalda | 1,040.44 mi (1,674.42 km) |
| Harpenden to Augusta | 1,259.72 mi (2,027.32 km) |
| Harpenden to Aulla | 708.05 mi (1,139.50 km) |
| Harpenden to Aurisina | 765.48 mi (1,231.93 km) |
| Harpenden to Avellino | 1,039.24 mi (1,672.50 km) |
| Harpenden to Aversa | 1,017.57 mi (1,637.62 km) |
| Harpenden to Avezzano | 934.94 mi (1,504.65 km) |
