| Catonsville to Amelia | 4,430.82 mi (7,130.72 km) |
| Catonsville to Anagni | 4,492.13 mi (7,229.38 km) |
| Catonsville to Ancona | 4,440.93 mi (7,146.98 km) |
| Catonsville to Andria | 4,649.08 mi (7,481.98 km) |
| Catonsville to Angri | 4,591.07 mi (7,388.62 km) |
| Catonsville to Anguillara Sabazia | 4,440.70 mi (7,146.61 km) |
| Catonsville to Anzio | 4,479.30 mi (7,208.73 km) |
| Catonsville to Anzola dell'Emilia | 4,309.03 mi (6,934.71 km) |
| Catonsville to Aosta | 4,103.62 mi (6,604.14 km) |
| Catonsville to Apricena | 4,590.80 mi (7,388.18 km) |
| Catonsville to Aprilia | 4,475.39 mi (7,202.44 km) |
| Catonsville to Aradeo | 4,770.53 mi (7,677.43 km) |
| Catonsville to Aragona | 4,672.92 mi (7,520.33 km) |
| Catonsville to Arco | 4,250.19 mi (6,840.03 km) |
| Catonsville to Arcola | 4,267.36 mi (6,867.65 km) |
