| Letchworth to Deville-les-Rouen | 182.11 mi (293.08 km) |
| Letchworth to Dieppe | 153.20 mi (246.54 km) |
| Letchworth to Digne-les-Bains | 620.77 mi (999.04 km) |
| Letchworth to Dijon | 398.30 mi (641.00 km) |
| Letchworth to Dinan | 256.31 mi (412.50 km) |
| Letchworth to Dinard | 244.86 mi (394.06 km) |
| Letchworth to Divonne-les-Bains | 483.07 mi (777.42 km) |
| Letchworth to Dole | 423.65 mi (681.80 km) |
| Letchworth to Dombasle-sur-Meurthe | 371.23 mi (597.43 km) |
| Letchworth to Domerat | 407.66 mi (656.07 km) |
| Letchworth to Domont | 232.74 mi (374.55 km) |
| Letchworth to Douai | 181.30 mi (291.77 km) |
| Letchworth to Douarnenez | 324.22 mi (521.79 km) |
| Letchworth to Douchy-les-Mines | 195.13 mi (314.03 km) |
| Letchworth to Dourdan | 258.02 mi (415.24 km) |
