| Ardahan to Dormagen | 1,830.07 mi (2,945.21 km) |
| Ardahan to Dornstadt | 1,670.25 mi (2,688.01 km) |
| Ardahan to Dorsten | 1,829.59 mi (2,944.44 km) |
| Ardahan to Dortmund | 1,806.69 mi (2,907.59 km) |
| Ardahan to Dorverden | 1,752.17 mi (2,819.84 km) |
| Ardahan to Dossenheim | 1,734.47 mi (2,791.36 km) |
| Ardahan to Dreieich | 1,737.84 mi (2,796.79 km) |
| Ardahan to Drensteinfurt | 1,798.48 mi (2,894.38 km) |
| Ardahan to Dresden | 1,535.05 mi (2,470.42 km) |
| Ardahan to Drochtersen | 1,761.37 mi (2,834.65 km) |
| Ardahan to Drolshagen | 1,788.59 mi (2,878.45 km) |
| Ardahan to Duderstadt | 1,688.72 mi (2,717.74 km) |
| Ardahan to Duisburg | 1,835.73 mi (2,954.32 km) |
| Ardahan to Dulmen | 1,818.31 mi (2,926.28 km) |
| Ardahan to Duren | 1,841.73 mi (2,963.97 km) |
