| Isernia to Barberino di Mugello | 224.92 mi (361.97 km) |
| Isernia to Barcellona-Pozzo di Gotto | 244.12 mi (392.87 km) |
| Isernia to Bareggio | 374.80 mi (603.18 km) |
| Isernia to Barga | 255.74 mi (411.57 km) |
| Isernia to Bari | 140.16 mi (225.56 km) |
| Isernia to Barletta | 107.65 mi (173.24 km) |
| Isernia to Baronissi | 65.31 mi (105.10 km) |
| Isernia to Barrafranca | 292.69 mi (471.05 km) |
| Isernia to Bassano del Grappa | 313.71 mi (504.87 km) |
| Isernia to Battipaglia | 78.36 mi (126.11 km) |
| Isernia to Beinasco | 409.21 mi (658.56 km) |
| Isernia to Bellinzago Novarese | 392.68 mi (631.96 km) |
| Isernia to Belluno | 329.27 mi (529.92 km) |
| Isernia to Belmonte Mezzagno | 249.64 mi (401.76 km) |
| Isernia to Belpasso | 280.52 mi (451.46 km) |
