| Harrow on the Hill to Deville-les-Rouen | 157.02 mi (252.70 km) |
| Harrow on the Hill to Dieppe | 129.38 mi (208.22 km) |
| Harrow on the Hill to Digne-les-Bains | 598.96 mi (963.94 km) |
| Harrow on the Hill to Dijon | 379.18 mi (610.23 km) |
| Harrow on the Hill to Dinan | 227.99 mi (366.91 km) |
| Harrow on the Hill to Dinard | 216.64 mi (348.65 km) |
| Harrow on the Hill to Divonne-les-Bains | 464.19 mi (747.04 km) |
| Harrow on the Hill to Dole | 405.01 mi (651.81 km) |
| Harrow on the Hill to Dombasle-sur-Meurthe | 358.95 mi (577.68 km) |
| Harrow on the Hill to Domerat | 382.36 mi (615.35 km) |
| Harrow on the Hill to Domont | 210.99 mi (339.55 km) |
| Harrow on the Hill to Douai | 169.85 mi (273.34 km) |
| Harrow on the Hill to Douarnenez | 298.80 mi (480.87 km) |
| Harrow on the Hill to Douchy-les-Mines | 184.23 mi (296.49 km) |
| Harrow on the Hill to Dourdan | 234.13 mi (376.80 km) |
