| Royston to Denizli | 1,714.09 mi (2,758.55 km) |
| Royston to Derecik | 2,367.71 mi (3,810.46 km) |
| Royston to Dereli | 1,963.55 mi (3,160.04 km) |
| Royston to Derik | 2,185.83 mi (3,517.75 km) |
| Royston to Derinkuyu | 1,911.78 mi (3,076.71 km) |
| Royston to Develi | 1,942.16 mi (3,125.60 km) |
| Royston to Dicle | 2,132.73 mi (3,432.30 km) |
| Royston to Digor | 2,188.59 mi (3,522.19 km) |
| Royston to Dikili | 1,566.07 mi (2,520.35 km) |
| Royston to Divrigi | 2,007.82 mi (3,231.28 km) |
| Royston to Diyadin | 2,234.46 mi (3,596.01 km) |
| Royston to Diyarbakir | 2,160.24 mi (3,476.57 km) |
| Royston to Doganhisar | 1,798.59 mi (2,894.55 km) |
| Royston to Dogansehir | 2,053.76 mi (3,305.21 km) |
| Royston to Dogubayazit | 2,251.35 mi (3,623.19 km) |
