| Catonsville to Arcore | 4,192.72 mi (6,747.53 km) |
| Catonsville to Ardea | 4,469.77 mi (7,193.40 km) |
| Catonsville to Arenzano | 4,204.81 mi (6,766.99 km) |
| Catonsville to Arese | 4,184.67 mi (6,734.58 km) |
| Catonsville to Arezzo | 4,375.49 mi (7,041.67 km) |
| Catonsville to Argelato | 4,314.64 mi (6,943.74 km) |
| Catonsville to Argenta | 4,334.09 mi (6,975.05 km) |
| Catonsville to Ariano Irpino | 4,598.52 mi (7,400.61 km) |
| Catonsville to Ariccia | 4,471.36 mi (7,195.96 km) |
| Catonsville to Arluno | 4,180.54 mi (6,727.93 km) |
| Catonsville to Arona | 4,156.37 mi (6,689.03 km) |
| Catonsville to Artena | 4,481.80 mi (7,212.76 km) |
| Catonsville to Arzachena | 4,346.85 mi (6,995.58 km) |
| Catonsville to Arzano | 4,571.04 mi (7,356.38 km) |
| Catonsville to Arzignano | 4,282.47 mi (6,891.97 km) |
