| Boulder to Arcore | 5,270.70 mi (8,482.37 km) |
| Boulder to Ardea | 5,581.86 mi (8,983.13 km) |
| Boulder to Arenzano | 5,307.52 mi (8,541.62 km) |
| Boulder to Arese | 5,266.03 mi (8,474.86 km) |
| Boulder to Arezzo | 5,465.92 mi (8,796.55 km) |
| Boulder to Argelato | 5,392.46 mi (8,678.32 km) |
| Boulder to Argenta | 5,407.15 mi (8,701.97 km) |
| Boulder to Ariano Irpino | 5,694.50 mi (9,164.41 km) |
| Boulder to Ariccia | 5,580.96 mi (8,981.69 km) |
| Boulder to Arluno | 5,263.79 mi (8,471.25 km) |
| Boulder to Arona | 5,238.49 mi (8,430.53 km) |
| Boulder to Artena | 5,588.95 mi (8,994.55 km) |
| Boulder to Arzachena | 5,493.76 mi (8,841.36 km) |
| Boulder to Arzano | 5,677.92 mi (9,137.73 km) |
| Boulder to Arzignano | 5,345.56 mi (8,602.85 km) |
