| Niagara Falls to Dobrova | 4,319.16 mi (6,951.02 km) |
| Niagara Falls to Dobrovnik | 4,370.81 mi (7,034.14 km) |
| Niagara Falls to Dobrovo | 4,286.32 mi (6,898.17 km) |
| Niagara Falls to Dol | 4,326.76 mi (6,963.25 km) |
| Niagara Falls to Dolenjske Toplice | 4,356.37 mi (7,010.89 km) |
| Niagara Falls to Domzale | 4,322.88 mi (6,957.00 km) |
| Niagara Falls to Dornava | 4,364.24 mi (7,023.56 km) |
| Niagara Falls to Dragomer | 4,319.24 mi (6,951.15 km) |
| Niagara Falls to Dravograd | 4,321.87 mi (6,955.38 km) |
| Niagara Falls to Gorenja Vas | 4,306.44 mi (6,930.55 km) |
| Niagara Falls to Gorisnica | 4,367.44 mi (7,028.72 km) |
| Niagara Falls to Gornja Radgona | 4,356.13 mi (7,010.51 km) |
| Niagara Falls to Gornji Grad | 4,324.95 mi (6,960.33 km) |
| Niagara Falls to Gornji Petrovci | 4,359.62 mi (7,016.13 km) |
| Niagara Falls to Grad | 4,355.33 mi (7,009.22 km) |
