| Boulder to Ascoli Piceno | 5,555.76 mi (8,941.13 km) |
| Boulder to Asola | 5,328.90 mi (8,576.03 km) |
| Boulder to Asolo | 5,351.30 mi (8,612.08 km) |
| Boulder to Assemini | 5,567.30 mi (8,959.70 km) |
| Boulder to Assisi | 5,510.97 mi (8,869.05 km) |
| Boulder to Asti | 5,266.99 mi (8,476.41 km) |
| Boulder to Atessa | 5,625.50 mi (9,053.37 km) |
| Boulder to Atri | 5,583.07 mi (8,985.09 km) |
| Boulder to Atripalda | 5,697.48 mi (9,169.22 km) |
| Boulder to Augusta | 5,900.61 mi (9,496.11 km) |
| Boulder to Aulla | 5,361.99 mi (8,629.29 km) |
| Boulder to Aurisina | 5,415.68 mi (8,715.69 km) |
| Boulder to Avellino | 5,696.20 mi (9,167.15 km) |
| Boulder to Aversa | 5,673.02 mi (9,129.84 km) |
| Boulder to Avezzano | 5,591.74 mi (8,999.04 km) |
