| Gaithersburg to Deville-les-Rouen | 3,758.07 mi (6,048.03 km) |
| Gaithersburg to Dieppe | 3,748.30 mi (6,032.31 km) |
| Gaithersburg to Digne-les-Bains | 4,133.14 mi (6,651.65 km) |
| Gaithersburg to Dijon | 3,983.38 mi (6,410.63 km) |
| Gaithersburg to Dinan | 3,650.58 mi (5,875.05 km) |
| Gaithersburg to Dinard | 3,645.97 mi (5,867.62 km) |
| Gaithersburg to Divonne-les-Bains | 4,059.72 mi (6,533.49 km) |
| Gaithersburg to Dole | 4,010.04 mi (6,453.54 km) |
| Gaithersburg to Dombasle-sur-Meurthe | 4,001.94 mi (6,440.49 km) |
| Gaithersburg to Domerat | 3,903.32 mi (6,281.79 km) |
| Gaithersburg to Domont | 3,822.84 mi (6,152.27 km) |
| Gaithersburg to Douai | 3,819.71 mi (6,147.22 km) |
| Gaithersburg to Douarnenez | 3,559.90 mi (5,729.10 km) |
| Gaithersburg to Douchy-les-Mines | 3,834.33 mi (6,170.76 km) |
| Gaithersburg to Dourdan | 3,822.43 mi (6,151.61 km) |
