| South Portland to Denizli | 4,889.51 mi (7,868.91 km) |
| South Portland to Derecik | 5,519.28 mi (8,882.42 km) |
| South Portland to Dereli | 5,118.79 mi (8,237.89 km) |
| South Portland to Derik | 5,353.46 mi (8,615.57 km) |
| South Portland to Derinkuyu | 5,089.76 mi (8,191.17 km) |
| South Portland to Develi | 5,118.86 mi (8,238.01 km) |
| South Portland to Dicle | 5,295.93 mi (8,522.97 km) |
| South Portland to Digor | 5,318.63 mi (8,559.50 km) |
| South Portland to Dikili | 4,740.58 mi (7,629.22 km) |
| South Portland to Divrigi | 5,173.16 mi (8,325.39 km) |
| South Portland to Diyadin | 5,370.55 mi (8,643.06 km) |
| South Portland to Diyarbakir | 5,325.29 mi (8,570.23 km) |
| South Portland to Doganhisar | 4,978.33 mi (8,011.84 km) |
| South Portland to Dogansehir | 5,225.84 mi (8,410.17 km) |
| South Portland to Dogubayazit | 5,384.80 mi (8,665.99 km) |
