| Mason City to Denizli | 5,778.82 mi (9,300.12 km) |
| Mason City to Derecik | 6,285.00 mi (10,114.74 km) |
| Mason City to Dereli | 5,905.40 mi (9,503.83 km) |
| Mason City to Derik | 6,154.52 mi (9,904.74 km) |
| Mason City to Derinkuyu | 5,929.45 mi (9,542.53 km) |
| Mason City to Develi | 5,952.16 mi (9,579.07 km) |
| Mason City to Dicle | 6,089.73 mi (9,800.47 km) |
| Mason City to Digor | 6,063.54 mi (9,758.32 km) |
| Mason City to Dikili | 5,634.07 mi (9,067.16 km) |
| Mason City to Divrigi | 5,975.21 mi (9,616.17 km) |
| Mason City to Diyadin | 6,120.54 mi (9,850.06 km) |
| Mason City to Diyarbakir | 6,121.76 mi (9,852.03 km) |
| Mason City to Doganhisar | 5,844.52 mi (9,405.85 km) |
| Mason City to Dogansehir | 6,041.52 mi (9,722.89 km) |
| Mason City to Dogubayazit | 6,130.86 mi (9,866.67 km) |
