| Niagara Falls to Deville-les-Rouen | 3,665.32 mi (5,898.76 km) |
| Niagara Falls to Dieppe | 3,653.05 mi (5,879.02 km) |
| Niagara Falls to Digne-les-Bains | 4,059.14 mi (6,532.55 km) |
| Niagara Falls to Dijon | 3,895.45 mi (6,269.12 km) |
| Niagara Falls to Dinan | 3,568.21 mi (5,742.49 km) |
| Niagara Falls to Dinard | 3,562.61 mi (5,733.47 km) |
| Niagara Falls to Divonne-les-Bains | 3,974.62 mi (6,396.54 km) |
| Niagara Falls to Dole | 3,922.42 mi (6,312.52 km) |
| Niagara Falls to Dombasle-sur-Meurthe | 3,905.07 mi (6,284.61 km) |
| Niagara Falls to Domerat | 3,824.75 mi (6,155.34 km) |
| Niagara Falls to Domont | 3,730.49 mi (6,003.64 km) |
| Niagara Falls to Douai | 3,719.03 mi (5,985.21 km) |
| Niagara Falls to Douarnenez | 3,483.11 mi (5,605.52 km) |
| Niagara Falls to Douchy-les-Mines | 3,733.56 mi (6,008.58 km) |
| Niagara Falls to Dourdan | 3,733.24 mi (6,008.07 km) |
