| Boulder to Denizli | 6,333.92 mi (10,193.45 km) |
| Boulder to Derecik | 6,770.17 mi (10,895.54 km) |
| Boulder to Dereli | 6,408.11 mi (10,312.86 km) |
| Boulder to Derik | 6,660.31 mi (10,718.73 km) |
| Boulder to Derinkuyu | 6,458.30 mi (10,393.64 km) |
| Boulder to Develi | 6,477.49 mi (10,424.51 km) |
| Boulder to Dicle | 6,592.91 mi (10,610.26 km) |
| Boulder to Digor | 6,542.08 mi (10,528.45 km) |
| Boulder to Dikili | 6,192.93 mi (9,966.56 km) |
| Boulder to Divrigi | 6,484.51 mi (10,435.82 km) |
| Boulder to Diyadin | 6,600.62 mi (10,622.67 km) |
| Boulder to Diyarbakir | 6,625.76 mi (10,663.14 km) |
| Boulder to Doganhisar | 6,387.60 mi (10,279.85 km) |
| Boulder to Dogansehir | 6,556.62 mi (10,551.86 km) |
| Boulder to Dogubayazit | 6,608.70 mi (10,635.68 km) |
