| Isernia to Deville-les-Rouen | 836.30 mi (1,345.89 km) |
| Isernia to Dieppe | 853.68 mi (1,373.86 km) |
| Isernia to Digne-les-Bains | 440.20 mi (708.43 km) |
| Isernia to Dijon | 601.54 mi (968.08 km) |
| Isernia to Dinan | 922.92 mi (1,485.30 km) |
| Isernia to Dinard | 928.58 mi (1,494.41 km) |
| Isernia to Divonne-les-Bains | 519.10 mi (835.41 km) |
| Isernia to Dole | 574.49 mi (924.56 km) |
| Isernia to Dombasle-sur-Meurthe | 618.50 mi (995.38 km) |
| Isernia to Domerat | 667.39 mi (1,074.06 km) |
| Isernia to Domont | 771.80 mi (1,242.09 km) |
| Isernia to Douai | 807.00 mi (1,298.74 km) |
| Isernia to Douarnenez | 1,010.65 mi (1,626.49 km) |
| Isernia to Douchy-les-Mines | 793.78 mi (1,277.46 km) |
| Isernia to Dourdan | 763.36 mi (1,228.52 km) |
