| Helena to Denizli | 6,130.46 mi (9,866.02 km) |
| Helena to Derecik | 6,471.85 mi (10,415.43 km) |
| Helena to Dereli | 6,134.77 mi (9,872.95 km) |
| Helena to Derik | 6,386.89 mi (10,278.71 km) |
| Helena to Derinkuyu | 6,216.45 mi (10,004.41 km) |
| Helena to Develi | 6,230.80 mi (10,027.50 km) |
| Helena to Dicle | 6,317.41 mi (10,166.89 km) |
| Helena to Digor | 6,239.91 mi (10,042.17 km) |
| Helena to Dikili | 5,997.25 mi (9,651.65 km) |
| Helena to Divrigi | 6,217.84 mi (10,006.65 km) |
| Helena to Diyadin | 6,299.25 mi (10,137.66 km) |
| Helena to Diyarbakir | 6,350.75 mi (10,220.54 km) |
| Helena to Doganhisar | 6,166.02 mi (9,923.25 km) |
| Helena to Dogansehir | 6,295.92 mi (10,132.30 km) |
| Helena to Dogubayazit | 6,304.84 mi (10,146.67 km) |
