| Fort Collins to Amersham | 4,622.38 mi (7,439.00 km) |
| Fort Collins to Amesbury | 4,602.43 mi (7,406.90 km) |
| Fort Collins to Ammanford | 4,499.77 mi (7,241.68 km) |
| Fort Collins to Ampthill | 4,611.74 mi (7,421.89 km) |
| Fort Collins to Andover | 4,611.45 mi (7,421.41 km) |
| Fort Collins to Annan | 4,400.49 mi (7,081.90 km) |
| Fort Collins to Antrim | 4,312.44 mi (6,940.21 km) |
| Fort Collins to Appleton | 4,488.41 mi (7,223.40 km) |
| Fort Collins to Appley Bridge | 4,473.42 mi (7,199.27 km) |
| Fort Collins to Arbroath | 4,361.75 mi (7,019.56 km) |
| Fort Collins to Ardrossan | 4,324.72 mi (6,959.96 km) |
| Fort Collins to Armadale | 4,351.20 mi (7,002.58 km) |
| Fort Collins to Armthorpe | 4,531.01 mi (7,291.95 km) |
| Fort Collins to Arnold | 4,550.04 mi (7,322.59 km) |
| Fort Collins to Ascot | 4,631.20 mi (7,453.19 km) |
