| Fort Collins to Adel | 4,500.66 mi (7,243.11 km) |
| Fort Collins to Adwick le Street | 4,525.00 mi (7,282.29 km) |
| Fort Collins to Ainsdale | 4,461.74 mi (7,180.47 km) |
| Fort Collins to Airdrie | 4,343.70 mi (6,990.50 km) |
| Fort Collins to Aldenham | 4,631.08 mi (7,453.00 km) |
| Fort Collins to Aldershot | 4,634.71 mi (7,458.85 km) |
| Fort Collins to Aldridge | 4,539.45 mi (7,305.53 km) |
| Fort Collins to Alfreton | 4,537.80 mi (7,302.89 km) |
| Fort Collins to Allestree | 4,540.12 mi (7,306.62 km) |
| Fort Collins to Alloa | 4,340.09 mi (6,984.71 km) |
| Fort Collins to Almondbury | 4,503.80 mi (7,248.16 km) |
| Fort Collins to Alsager | 4,506.64 mi (7,252.73 km) |
| Fort Collins to Alton | 4,631.33 mi (7,453.41 km) |
| Fort Collins to Altrincham | 4,493.49 mi (7,231.57 km) |
| Fort Collins to Amblecote | 4,537.06 mi (7,301.70 km) |
