| Fort Collins to Ascoli Piceno | 5,521.95 mi (8,886.73 km) |
| Fort Collins to Asola | 5,295.10 mi (8,521.63 km) |
| Fort Collins to Asolo | 5,317.17 mi (8,557.15 km) |
| Fort Collins to Assemini | 5,535.04 mi (8,907.79 km) |
| Fort Collins to Assisi | 5,477.27 mi (8,814.82 km) |
| Fort Collins to Asti | 5,233.58 mi (8,422.63 km) |
| Fort Collins to Atessa | 5,591.71 mi (8,999.00 km) |
| Fort Collins to Atri | 5,549.26 mi (8,930.67 km) |
| Fort Collins to Atripalda | 5,663.86 mi (9,115.10 km) |
| Fort Collins to Augusta | 5,867.64 mi (9,443.06 km) |
| Fort Collins to Aulla | 5,328.46 mi (8,575.33 km) |
| Fort Collins to Aurisina | 5,381.31 mi (8,660.38 km) |
| Fort Collins to Avellino | 5,662.58 mi (9,113.05 km) |
| Fort Collins to Aversa | 5,639.49 mi (9,075.88 km) |
| Fort Collins to Avezzano | 5,558.12 mi (8,944.93 km) |
