| Fort Collins to Arcore | 5,236.97 mi (8,428.08 km) |
| Fort Collins to Ardea | 5,548.46 mi (8,929.39 km) |
| Fort Collins to Arenzano | 5,274.14 mi (8,487.91 km) |
| Fort Collins to Arese | 5,232.35 mi (8,420.66 km) |
| Fort Collins to Arezzo | 5,432.26 mi (8,742.38 km) |
| Fort Collins to Argelato | 5,358.65 mi (8,623.91 km) |
| Fort Collins to Argenta | 5,373.26 mi (8,647.43 km) |
| Fort Collins to Ariano Irpino | 5,660.78 mi (9,110.15 km) |
| Fort Collins to Ariccia | 5,547.53 mi (8,927.88 km) |
| Fort Collins to Arluno | 5,230.14 mi (8,417.10 km) |
| Fort Collins to Arona | 5,204.84 mi (8,376.37 km) |
| Fort Collins to Artena | 5,555.47 mi (8,940.67 km) |
| Fort Collins to Arzachena | 5,461.02 mi (8,788.66 km) |
| Fort Collins to Arzano | 5,644.38 mi (9,083.76 km) |
| Fort Collins to Arzignano | 5,311.57 mi (8,548.14 km) |
