| Niagara Falls to Delitzsch | 4,034.56 mi (6,492.99 km) |
| Niagara Falls to Delmenhorst | 3,846.24 mi (6,189.93 km) |
| Niagara Falls to Demmin | 3,976.25 mi (6,399.16 km) |
| Niagara Falls to Denkendorf | 4,019.91 mi (6,469.42 km) |
| Niagara Falls to Denzlingen | 3,985.27 mi (6,413.67 km) |
| Niagara Falls to Dessau-Rosslau | 4,019.66 mi (6,469.01 km) |
| Niagara Falls to Detmold | 3,892.05 mi (6,263.65 km) |
| Niagara Falls to Dettingen an der Erms | 4,026.95 mi (6,480.75 km) |
| Niagara Falls to Dieburg | 3,959.71 mi (6,372.53 km) |
| Niagara Falls to Diedorf | 4,088.99 mi (6,580.60 km) |
| Niagara Falls to Dielheim | 3,976.58 mi (6,399.69 km) |
| Niagara Falls to Diepholz | 3,851.01 mi (6,197.60 km) |
| Niagara Falls to Diessen am Ammersee | 4,116.65 mi (6,625.12 km) |
| Niagara Falls to Dietzenbach | 3,953.13 mi (6,361.94 km) |
| Niagara Falls to Diez | 3,911.53 mi (6,295.01 km) |
