| Isernia to Amelia | 114.12 mi (183.65 km) |
| Isernia to Anagni | 56.64 mi (91.15 km) |
| Isernia to Ancona | 143.93 mi (231.64 km) |
| Isernia to Andria | 110.04 mi (177.10 km) |
| Isernia to Angri | 62.44 mi (100.48 km) |
| Isernia to Anguillara Sabazia | 106.84 mi (171.94 km) |
| Isernia to Anzio | 84.04 mi (135.25 km) |
| Isernia to Anzola dell'Emilia | 254.89 mi (410.21 km) |
| Isernia to Aosta | 448.22 mi (721.34 km) |
| Isernia to Apricena | 62.62 mi (100.78 km) |
| Isernia to Aprilia | 82.16 mi (132.22 km) |
| Isernia to Aradeo | 227.34 mi (365.86 km) |
| Isernia to Aragona | 292.14 mi (470.15 km) |
| Isernia to Arco | 341.82 mi (550.11 km) |
| Isernia to Arcola | 280.07 mi (450.73 km) |
