| Boulder to Albenga | 5,307.96 mi (8,542.33 km) |
| Boulder to Alberobello | 5,787.36 mi (9,313.86 km) |
| Boulder to Albignasego | 5,371.88 mi (8,645.21 km) |
| Boulder to Albinea | 5,364.57 mi (8,633.44 km) |
| Boulder to Albino | 5,281.13 mi (8,499.15 km) |
| Boulder to Alcamo | 5,780.63 mi (9,303.02 km) |
| Boulder to Alessandria | 5,280.67 mi (8,498.42 km) |
| Boulder to Alfonsine | 5,420.30 mi (8,723.12 km) |
| Boulder to Alghero | 5,479.46 mi (8,818.35 km) |
| Boulder to Alpignano | 5,233.01 mi (8,421.72 km) |
| Boulder to Altamura | 5,762.29 mi (9,273.52 km) |
| Boulder to Altavilla Vicentina | 5,349.52 mi (8,609.23 km) |
| Boulder to Altofonte | 5,789.36 mi (9,317.07 km) |
| Boulder to Altopascio | 5,406.71 mi (8,701.25 km) |
| Boulder to Alzano Lombardo | 5,280.17 mi (8,497.62 km) |
